bluuebunny/crossref_metadata_2025 huggingface dataset:
La Juventud perdida. La expresión y el simbolismo en la obra de Elena Juno.
Authors: González Ruiz José
Published: December 2023

El arte actual en muchas ocasiones se ve diluido y apartado en un momento en el que, en plena era tecnológica, las grandes casas de subastas abogan por artistas consolidados y conocidos. Artistas de talento ven que su obra no se visibiliza o que directamente es ignorada, en un mar de creadores que no consiguen destacar sobre los otros. Con el fin de visibilizar a estos artistas emergentes, nace la iniciativa por parte del grupo de trabajo Vanguardias y Últimas Tendencias Artísticas, de realizar un ciclo de exposiciones de artistas desconocidos, pero con gran potencial. La primera en abrir este ciclo expositivo es, desde el pasado Noviembre, Elena Juno. Dibujante que narra con ferocidad la vida de la juventud abatida en la actualidad. Con lápiz, bolígrafo y carboncillo, y posterior coloración digital, logra hacer partícipe al espectador de esas sensaciones y emociones que a veces, no logramos expresar con palabras. En este artículo, repasaremos su vida a fin de comprender sus inquietudes y motivaciones, así como algunas de sus obras más destacadas, comprendiendo sus influencias y su trayectoria, la cual desde hace más de media década la ha llevado a consolidar un estilo propio, y con gran carga simbólica.
El VIH/SIDA bajo la mirada en el Arte.
Authors: Mariscal Caballero Rubén
Published: December 2023

A la irrupción VIH/SIDA le sucedieron una serie de rechazos y prejuicios hacia los sectores marginados y débiles de la sociedad, sectores que, a través de su concienciación, desarrollarían toda una práctica activista para dar visibilidad a la enfermedad y sus afectados, para romper el silencio. Así, el arte se hace eco de la gravedad del asunto y a través del cuerpo y el concepto, proponen al VIH/SIDA como un nuevo protagonista al que analizar. España, tomando como modelo lo acontecido en EEUU, abrirá en este terreno un nuevo e interesante campo aún por abonar.
Suecia, toros y cubistas. Dos dibujos cubistas del Moderna Museet de Estocolmo: Blanchard y Lipchitz
Authors: Tur José
Published: December 2023

Esta es la historia de dos dibujos en papel encontrados en el Museo de Arte Moderno de Estocolmo, ambos de tema taurino, y ambos hechos por dos amigos, del mismo grupo cubista, pero con diferentes vicisitudes y aventuras en sus vidas.
Critical success factors for DevOps adoption in information systems development
Authors: Jayakody J. A. V. M. K. , Wijayanayake W. M. J. I.
Published: December 2023

Adopting DevOps is challenging since it makes a significant paradigm shift in the Information Systems Development process. DevOps is a trending approach attached to the Agile Software Development Methodology, which facilitates adaptation to the customers' rapidly-changing requirements. It keeps one front step by introducing software operators who support the transmission between software and implementation into the software development team by confirming faster development, quality assurance, and easy maintenance of Information Systems (IS). However, software development companies reported challenges in adopting DevOps. It is critical to control those challenges while getting hold of the benefits by studying Critical Success Factors (CSF) for adopting DevOps. This study aimed to analyze the use of DevOps approach in IS developments by exploring CSFs of DevOps. A systematic literature review was applied to identify CSFs. These factors were confirmed by interviewing DevOps practitioners while identifying more frequent CSFs in the software development industry. Finally, the research presents a conceptual model for CSFs of DevOps, which is a guide to reap the DevOps benefits while reducing the hurdles for enhancing the success of IS. The conceptual model presents CSFs of DevOps by grouping them into four areas: collaborative culture, DevOps practices, proficient DevOps team, and metrics & measurement.
Small animal review
Authors: Gough Alex
Published: December 2023

Pancreatitis is a serious and common disease in dogs. Chronic disease can cause repeated bouts of abdominal pain and anorexia, acute cases are associated with vomiting and the most severe cases can lead to shock and death. Since the pancreas has multiple roles, such as glucose homeostasis as well as a digestive function, pancreatitis can lead to marked metabolic abnormalities.
Desinstitucionalización, individualismos y reclamos punitivistas: en particular, el “cacerolazo contra la liberación de presos” en los albores de la pandemia.
Authors: Urriza Ruben Ignacio
Published: December 2023

Los procesos de desinstitucionalización e individualismo ofrecen una clave de lectura de las formaciones sociales del presente atravesadas por el punitivismo contemporáneo. Podemos conjeturar, a su vez, que la pandemia ha exacerbado las expresiones punitivistas y los procesos de individualismo y desinstitucionalización en los que aquéllas se inscriben. Inmerso en un complejo de incertidumbres individuales sobre la circulación de un virus que se presentaba como letal, estos actores morales pretendieron inmunizarse frente a la otredad constituida por la figura del preso. El repliegue sobre sí, inmanente al individualismo contemporáneo, (re)potenciado por el encierro para no contaminarse frente al virus, intensificó el peligro de la otredad, radicalizó un riesgo singular, por fuera de los reales peligros de contagio que mostraba el covid-19: el del preso aún encerrado en medio diverso del carcelario. En aparente paradoja, el “cacerolazo contra la liberación de presos” promovió un control denunciante de un otro al que no se podía contactar, pero al que se adjudicaba una afectación singular, difusa. Es decir, asistimos al llamado al aniquilamiento de la otredad por fuera, no sólo de las condiciones de emergencia sanitaria, sino de los pretextos securitarios-delictivos. Pero esta paradoja no es tal si procura ser analizada como exacerbación de la serie de manifestaciones punitivistas en el marco de los procesos de individualismos y des-institucionalización iniciados hace aproximadamente 50 años. Esta clave de lectura permitiría comprender al “#Cacerolazo30A”, no como un episodio irracional de nuestra vida social, sino en plena lógica con los procesos de individualismo y desinstitucionalización.
Criminalización de las disidencias en instituciones de encierro: análisis de los actos de protesta en los penales peruanos desde el discurso de los medios de comunicación en contextos de la Covid-19 (primera ola)
Authors: Fernández Olivas Lynda Josefina
Published: December 2023

Comprender las prácticas que han delineado el control de los diversos “desórdenes” agravados a propósito de la pandemia, específicamente, la forma en cómo se gestionaron los actos de protesta (conocidos como “amotinamiento”) al interior de los penales de Perú durante la primera ola pandémica es una temática de urgencia para considerar la ineludible capacidad que tiene el politizar espacios tan adversos como lo son las cárceles latinoamericanas. Con este fin, la autora realiza una primera aproximación a esta temática, desde el discurso que los medios de comunicación difundieron sobre estos sucesos, al considéralos como un elemento de importancia al constituir lo que es ser “delincuente” y lo que significa la “cárcel” en la actualidad. Entender el cruce entre enemigo moral y enemigo político cuando se habla de la criminalización de los privados de la libertad en las instituciones de encierro; observar las condiciones de la cárcel peruana como imagen viva de la sociedad y analizar cómo el discurso mediático construyó la imagen de protesta en los penales de nuestro país, son tres de las finalidades que tiene la investigación.
Experiencias didácticas: los carteles de la Guerra Civil como recurso educativo durante la enseñanza de bachillerato
Authors: Casanova Castillo Pablo
Published: December 2023

Durante los terribles años en los que España se vio envuelta en una sangrienta guerra civil, e incluso desde la etapa anterior, en la Segunda República, el cartel publicitario se convirtió en una herramienta de propaganda política indispensable al servicio de dos bandos enfrentados no solo de forma ideológica, sino también militar. De esta forma, los carteles fueron dejando a un lado su carácter comercial, para transformarse en altavoces a través de los cuáles se reclutaba a la gente para el ejército, se advertía sobre los enemigos infiltrados, se alentaba a la población a trabajar en pro de la victoria, e incluso se daban recomendaciones de carácter educativo y social. Por ello, analizar lo que fue esta contienda, así como sus aspectos socioeconómicos y religiosos, utilizando una gran variedad de carteles de aquellos años, puede resultar una experiencia didáctica innovadora no solo para el alumnado, sino también para el profesorado.
Visita al front del Pallars. Les fortificacions de Sant Joan de Vilamur
Authors: Riart Arnalot Oriol
Published: December 2023

La aportació vol ser una eina pedagògica i didàctica, adreçada a l’ensenyament secundari, per a iniciar-se en l’estudi del que va ser la Guerra Civil al Pallars Sobirà. S’incideix especialment en el patrimoni bèl·lic de Sant Joan de Vilamur (Soriguera). Les seves fortificacions son de les millors conservades de Catalunya. La visita a Sant Joan de Vilamur es planteja de manera contextualitzada tractant els més diversos aspectes de tècnica i tecnologia militar, però també de vida quotidiana. La voluntat del treball es incidir en els alumnes de l’Ensenyament Secundari Obligatori, per donar a conèixer aspectes diversos de la guerra civil a partir d’una lectura històrico-arqueològica de les estructures d’un conjunt patrimonial.
Reclaiming the Legacy of Merdana, a Kebyar Master
Authors: Ornstein Ruby
Published: December 2023

Abstract: One of the most important but lesser-known figures of twentieth-century kebyar was North Balinese composer Ketut Merdana. Owing to the remote location of Kedis Kaja and the political situation in mid-twentieth-century Indonesia, his importance in developing kebyar has been largely ignored. This paper aims to affirm his position as an outstanding composer and to restore to the Balinese a vital part of their twentieth-century musical culture. The first section of this paper provides background information that is critical to understanding the musical culture of his time. The second section helps to explain how the well-known South Balinese musician Wayan Gandera was able to claim Merdana’s music as his own, “confessing” that the music was not his only near the end of his life. The last section deals with Merdana’s belated public recognition and introduces some of his compositions.
Más que Una Porción: Framing the Persistence of Land Inequality on the Urbanizing Texas-Tamaulipas Border through Shifting Resources and the Colonial Cadaster / Más que una “Porción”: Un análisis de la persistencia de la desiqualdad en la tenecia de tierras en la frontera Texas-Tamaulipas a través de la transición de recursos y el Catastro Colonial
Authors: Hilburn Andrew , Hadley Alison
Published: December 2023

La desigualdad en la tenencia de la tierra a menudo se relaciona con la persistencia de la pobreza, el subdesarrollo económico y las economías (neo)extractivistas en América Latina. Estos análisis, generalmente, se examinan en contextos rurales. El presente estudio investiga la existencia de la desigualdad en la tenencia de tierras en Laredo, Texas, una ciudad fronteriza de más de 250 000 habitantes. A partir de datos catastrales y análisis geoespacial para construir índices Gini para terrenos adentro y adyacentes a los límites de la ciudad, el análisis evalúa, empíricamente, la desigualdad en la tenencia de tierras utilizando criterios desarrollados por otros estudios. Analizando la superficie tanto como su valor comercial, los resultados apuntan a índices Gini que se aproximan a 1, lo que indica una concentración extrema de terrenos aptos para el desarrollo en la ciudad de Laredo y sus alrededores. Aquí, la desigualdad en la tenencia de tierra se interpreta a través del lente de la geografía de los recursos para explicar su persistencia. En contextos urbanos, la tierra sirve como un bien inmobiliario que proporciona el entorno espacial para el comercio, la industria y el transporte. Declaramos que la potencial captura de la tierra por parte de la élite laredense ha persistido, mientras que la definición del recurso de tierra para la extracción ha cambiado con el tiempo. El rol de impuestos diferenciales, la riqueza petrolera y la planificación colonial sirven para mantener grandes propiedades en Laredo y sus alrededores. Este estudio enmarca la desigualdad en la tenencia de tierras como desigualdad de recursos. Nuestro estudio también enmarca este tema a través del legado del extractivismo y el catastro colonial. Además, sitúa este tema en un contexto urbano y del norte global.
Las dimensiones ontoepistemológicas de la minería aurífera ancestral en Colombia: Evidencias del Resguardo Indígena Cañamomo y Lomaprieta / The Onto-Epistemological Dimensions of Ancestral Gold Mining in Colombia: Evidence from the Cañamomo and Lomaprieta Indigenous Reservation
Authors: Mons Steven
Published: December 2023

resumen: El surgimiento de las ontologías no dualistas, en combinación con el renovado interés en las cosmovisiones relacionales de los pueblos originarios, han venido forjando nuevos marcos analíticos que buscan una revalorización de mundos, conocimientos y saberes construidos desde los pueblos del sur global. Un importante proyecto para recuperar este "pluriverso" es el marco de las Epistemologías del Sur, el cual se emplea en este artículo para estudiar la geografía de conflictos en el resguardo indígena Cañamomo y Lomaprieta, en el departamento de Caldas, Colombia. A partir de un análisis de entrevistas cualitativas que se efectuaron en dicho resguardo, en el periodo 2018–2020, se argumenta que la lucha por la minería aurífera ancestral no solo es una lucha ontológica por el territorio ancestral, sino también una lucha epistemológica en defensa de los saberes, prácticas y conocimientos mineros ancestrales. Estas dimensiones ontoepistemológicas sirven de insumo para dar una definición emergente de la minería aurífera ancestral. Así, la contribución que se realiza en este artículo tiene una doble finalidad: por un lado, aportar conocimientos que estimulen debates desde el sur global, sobre las luchas ontológicas y la construcción de territorialidades alternativas en zonas mineras y, por el otro lado, contribuir a la discusión actual sobre la minería ancestral en Colombia. abstract: The emergence of non-dualist ontologies, in combination with a renewed interest in relational worldviews of indigenous peoples, has forged new analytical frameworks that seek to reevaluate worldviews and knowledge systems of marginalized peoples in the Global South. An important project to recover this "pluriverse" is the Epistemologies of the South framework, which is used in this article to analyze the geography of conflicts in the Cañamomo and Lomaprieta indigenous reservation in the department of Caldas, Colombia. Based on an analysis of qualitative interviews that were carried out in this indigenous reservation during the period 2018–2020, I argue that the struggle for ancestral gold mining is not only an ontological struggle for ancestral territory, but also an epistemological struggle in defense of ancestral mining knowledge and practices. These onto-epistemological dimensions serve as inputs for an emerging definition of ancestral gold mining. As such, the contribution made in this article has a dual purpose: on the one hand, it seeks to provide knowledge that stimulates debates from the Global South on ontological struggles and the construction of alternative territorialities in mining areas while, on the other hand, it contributes to current debates on ancestral mining in Colombia.
Examination of Chiral Magnetic Slab and Spectral Response
Authors: Buaossa Nagi A. , Chatterjee Monish R. , Jera Elforjani , Ataai Rajab
Published: December 2023

The results obtained for Fresnel coefficients (FCs) corresponding to a magnetic achiral/chiral (ACC) and chiral/achiral (CAC) interfaces are extended to examine the chiral magnetic slab and spectral response.
Multiscale Periodic Surface Structures in a Thin Nickel Film
Authors: Romashevskiy S. A. , Burmistrov A. A. , Evlashin S. A.
Published: December 2023

The multiscale laser-induced periodic surface structures comprising of mutually perpendicular low-spatial frequency structures of various nature both modulated with high-spatial frequency structures are observed on a substrate-supported Ni nanofilm upon irradiation with linear-polarized infrared femtosecond laser pulses.
Triangular Pulse Generation by a Normal Dispersion Silicon Core Single Mode Fiber
Authors: Mishra Atrayee , Ghosh Binoy Krishna , Ghosh Dipankar , Basu Mousumi
Published: December 2023

Aiming the reshaping of a pre-chirped Gaussian pulse towards the triangular shape, a silicon core fiber is designed and optimized. Stable Triangular pulse is generated at sufficiently shorter optimum length compared to previously reported works.
Utilizing Near-Infrared Laser (980 nm) to Increase Sperm Motility: In-vitro study
Authors: Ahmed Rasha , Hamdy Omnia , Elattar Shaimaa
Published: December 2023

The current work aims to investigate the effects of a 980-nm NIR-laser on the motility of human spermatozoa in an in-vitro controlled trial, with an 80% increase in motility after 3 minutes of laser irradiation.
Spatial Mode N00N-States and the Quantum Gouy Phase
Authors: Hiekkamäki Markus , Barros Rafael F. , Ornigotti Marco , Fickler Robert
Published: December 2023

Photonic N00N states can be realized in spatial modes of light in a single beam. Here, their enhanced phase sensitivity translates to improved angular sensing and enables the observation of the quantum Gouy phase.
Single Photon Compressive Sensing
Authors: Li Lili , Kumar Santosh , Huang Yuping
Published: December 2023

We experimentally demonstrate a compressive sensing method by utilizing single-pixel detection at a single-photon level and deep neural network. As a benchmark test, MNIST handwritten digits are classified with 98.8% accuracy.
3D imaging of hiPSC-derived cardiomyocytes with light-field microscopy
Authors: Liu Wenhao , Forghani Parvin , Chen Qingyu , Armand Lawrence C. , Xu Chunhui , Jia Shu
Published: December 2023

We introduce light-field microscopy for volumetric imaging of 3D Human induced pluripotent stem cell-derived cardiomyocytes with high spatiotemporal resolution, realizing simultaneous calcium tracing and cell tracking of cardiomyocytes in 3D space and demonstrating their synchronization.
Fabrication of 3D Nano and Micro-Particle Assemblies Using Optical Tweezers
Authors: McLeod Euan , Shultz Natalie , Sharma Kunal , Melzer Jeffrey E.
Published: December 2023

We use optical positioning and linking (OPAL) based on optical tweezers to fabricate arrays of hundreds of building blocks in 3D shapes. Automation is provided through feedback from a quadrant photodiode. Applications include nanophotonic sensors.
Stereo Slit-Scanning Tomography
Authors: Jiménez-Villar A. , Huang D. , Chen S.
Published: December 2023

Corneal tomography is an imaging technique that provides information about the geometry and thickness of the cornea. Commercial methods combine corneal slit-scan technology with other imaging systems like Placido disk or Scheimpflug techniques. We propose an alternative method based on the combination of computer stereo-vison methods with light sheet illumination.
Visible Photonic Integrated Circuits: From Neuroscience to Quantum Applications
Authors: Mohanty Aseema
Published: December 2023

This talk will highlight recent visible photonic integrated circuits based on silicon nitride including switching networks, optical phased arrays, chip-scale lasers, modulators and ongoing challenges for their practical application in neuroscience, imaging, and quantum systems.
Diamond X-band optomechanical crystal cavities
Authors: Zohari Elham , El-Sayed Waleed , Losby Joseph E. , de Luiz Gustavo Oliviera , Davis John P. , Barclay Paul E.
Published: December 2023

We demonstrate single-crystal diamond optomechanical crystal cavities that support ∼ 200 THz optical modes co-localized with high-frequency 10 GHz acoustic modes. Their measured optomechanical coupling g0/2π > 200 kHz is extracted through optomechanical backaction measurements.
Modular free-space architecture for photonic addressing and collection of artificial atoms in diamond
Authors: Palm Kevin J. , Dong Mark , Golter D. Andrew , Clark Genevieve , Zimmermann Matthew , Chen Kevin C. , Li Linsen , Menssen Adrian , Leenheer Andrew J. , Dominguez Daniel , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: December 2023

We report a modular architecture of piezoelectrically-actuated atom-control photonic integrated circuits (APICs) and artificial atoms embedded in diamond waveguides designed for high-efficiency free-space collection. Approved for Public Release; Distribution Unlimited. Public Release Case Number 23-1912
Michelson Objective Based Full Field Optical Coherence Tomography with Deconvolution Enhancement
Authors: Hudalla Magnus , Napier James , Neu Walter
Published: December 2023

This work presents a Michelson objective based Full Field Optical Coherence Tomography system, offering high resolution imaging in a compact and robust configuration, utilizing digital deconvolution based post processing to enhance contrast and visibility.
Isolation of Single Donors in ZnO via Focused-ion Beam Milling
Authors: Niaouris Vasileios , Hansen Ethan R. , Matthews Bethany E. , Zimmermann Christian , Spurgeon Steven R. , Fu Kai-Mei C.
Published: December 2023

We isolate spin-1/2 indium donors in ZnO using focused-ion beam milling. The optical transition is stable with a near Fourier transform-limited linewidth, indicating the donor In:ZnO system is promising for quantum network applications.
Gigahertz phononic integrated circuits based on overlay slot waveguides
Authors: Feng Ziyao , Liu Yang , Xi Xiang , Wang Lai , Sun Xiankai
Published: December 2023

We propose and experimentally demonstrate a type of overlay slot phononic waveguides, and the guiding and power splitting of gigahertz surface acoustic waves in such waveguides with a measured propagation loss of 1.80 dB/mm.
Electrically-interfaced Brillouin active waveguide
Authors: Zhou Yishu , Ruesink Freek , Pavlovich Margaret , Cheng Haotian , Gertler Shai , Otterstrom Nils T. , Rakich Peter
Published: December 2023

We demonstrate electrically-interfaced intramodal Brillouin scattering in an AlN-on-SOI photonic device. Our device exhibits efficient phase modulation with V
π
·L = 0.13 V·cm and can perform bidirectional optical-to-microwave conversion.
Photon Counting with an Adaptive Storage Loop
Authors: Braverman Boris , Sullivan Nicholas M. , Boyd Robert W.
Published: December 2023

Single-photon detectors can be used to resolve photon number by storing the photons in a delay loop. We consider a loop with adaptive, detection-record dependent out-coupling, finding that the dynamic range and effective speed of the detector can be enhanced compared to a purely passive setup.
Electro-optically Modulated Kerr Solitons on Thin-film Lithium Niobate
Authors: Song Yunxiang , Cheng Rebecca , Hu Yaowen , Zhu Xinrui , Lončar Marko , Yang Kiyoul
Published: December 2023

We present an electro-optically modulated dissipative Kerr soliton with microwave-rate spacing over a 20 THz span, using thin-film lithium niobate. In this experiment, we first operate lithium niobate solitons with a laser power of 40 mW on chip. Electro-optic phase modulation of these solitons then generate a total of 570 frequency comb lines with 30.3 GHz spacing.
10 GHz Frequency Comb Generation in Lithium Niobate Waveguides with Chirped Poling
Authors: Sekhar Pooja , Wu Tsung-Han , Ledezma Luis , Fredrick Connor , Sekine Ryoto , Guo Qiushi , Briggs Ryan , Marandi Alireza , Diddams Scott A.
Published: December 2023

We demonstrate efficient 10 GHz frequency comb generation using chirped periodically poled nanophotonic lithium niobate waveguides. Spectral coverage across the UV and visible is achieved with pulse energies less than 50 pJ.
Dispersion Compensation Fiber for OAM Modes with Dual Graded-index Concentric Ring Cores
Authors: Wang Ziheng , Ren Haoyang , Geng Wenpu , Peng Qinru , Zhao Wenqian , Liu Yuanpeng , Pan Zhongqi , Yue Yang
Published: December 2023

A graded-index fiber with two concentric-ring cores is proposed, which features a -4479.31 ps/(nm·km) negative dispersion for OAM2,1 mode at 1419 nm. The impact of the fiber material and structural parameters on dispersion is investigated.
Deep-learning designed fabrication-friendly metasurfaces
Authors: Ueno Akira , Lin Hung-I , Yang Fan , An Sensong , Martin-Monier Louis , Shalanginov Mikhail Y. , Gu Tian , Hu Juejun
Published: December 2023

We developed a deep-learning-enabled, fabrication-friendly metasurface design framework and experimentally demonstrated a dual-band metasurface collimator operating at 650 nm and 780 nm wavelengths concurrently.
Generation and Control of Non-Local Quantum Equivalent Extreme Ultraviolet Photons
Authors: Harrison Geoffrey R. , Saule Tobias , Goetz R. Esteban , Gibson George N , Le Anh-Thu , Trallero-Herrero Carlos A
Published: December 2023

We present a high precision, self-referencing, common path XUV interferometer setup to produce pairs of spatially separated and independently controllable XUV pulses that are locked in phase and time with a jitter of 3zs.
High-speed off-chip beam steering via photonic integrated waveguides embedded on vertical ski-jump cantilevers
Authors: Saha Matt , Greenspon Andrew S. , Wen Y. Henry , Zimmermann Matthew , Leenheer Andrew J. , Dong Mark , Clark Genevieve , Gilbert Gerald , Eichenfield Matt , Englund Dirk R.
Published: December 2023

We report a curled vertically emitting integrated waveguide on a piezo-actuated cantilever monolithically integrated into a photonic integrated circuit. The device provides high-speed, diffraction limited beam steering at visible wavelengths for low applied voltages.
Microresonator-based Low Noise Microwave Generation via Optical Frequency Division
Authors: Groman William , Kudelin Igor , Ji Qing-Xin , Guo Joel , Lee Dahyeon , Kelleher Megan , Nakamura Takuma , McLemore Charles A. , Jin Warren , Wu Lue , Zhang Wei , Campbell Joe , Matsko Andrey , Iltchenko Vladimir , Bowers John , Vahala Kerry , Quinlan Frank , Diddams Scott A.
Published: December 2023

Using photonic chip components and two-point optical frequency division, we generate a 20 GHz microwave signal with phase noise of −135 dBc/Hz at 10 kHz offset, decreasing to −139 dBc/Hz at 40 kHz offset.
Experimental observation of dissipatively coupled bound states in the continuum on an integrated photonic platform
Authors: Feng Ziyao , Sun Xiankai
Published: December 2023

The coupling between bound states in the continuum (BICs) is conventionally considered to be only dispersive. Here, we exploited dissipative coupling between BICs and for the first time experimentally observed supermode BICs on a chip.
Giant on-chip non-reciprocity and gyration through synthetic fields in modulated LiNbO3 ring resonators
Authors: Örsel Oğulcan E. , Noh Jiho , Bahl Gaurav
Published: December 2023

We experimentally realize a photonic gauge potential in an electro-optically modulated LiNbO3 nanophotonic resonator chain. We show that the induced synthetic fields can be adjusted to produce as much as 60 dB non-reciprocal contrast for light transmission and additionally can achieve optical gyration.
Scalable cm-scale Micro-Transfer Printing for Heterogeneous Integration of Lithium Niobate
Authors: Niels Margot , Billet Maximilien , Vandekerckhove Tom , Vanackere Tom , Roelkens Günther , Kuyken Bart
Published: December 2023

Heterogeneous integration of nonlinear materials on CMOS-compatible platforms is essential to introduce high-speed modulation. We demonstrate a process to enable the printing of up to cm-scale lithium niobate devices to allow for enhanced modulation efficiency.
Fast wide-angle computer-generated hologram algorithm using the frequency domain
Authors: Kozacki Tomasz , Kukołowicz Rafał , Martinez-Carranza Juan , Drąg Dominik
Published: December 2023

A novel technique to calculate wide-angle computer-generated holograms (CGH) in the frequency domain is presented. The proposed technique makes use of the frequency representation of the complex field over the CGH. This enables fast calculations and low use of computer memory.
Additive Manufacturing of Emissive Micro-Ring Resonators Using Two-Photon Lithography
Authors: Singh Gaurav Pratap , Jaiswal Arun , Rani Sweta , Palwe Ajinkya , Saxena Sumit , Shukla Shobha
Published: December 2023

Emissive micro-ring resonators have been additively manufactured using femtosecond laser assisted non-linear photopolymerization of acrylate based resin in a single exposure step. Such optically active structures find application in the field of optics and photonics.
Optical diffraction tomography using the MEMS mirror-based illuminating optical system
Authors: Chae Byung Gyu , Lee Juheon , Kim Hyuneui , Yoon MinSung , Park YongKeun
Published: December 2023

We present a cost-effective illumination method using a MEMS mirror for optical diffraction tomography. The present technique provides aberration-free angle beams incident on a sample with various illumination angles. We carry out imaging experiments to acquire a 3D refractive index tomogram of colloidal particles.
KXe Excimer Laser
Authors: Kabelitz Kavita Desai , Mironov Andrey E. , Eden J. Gary
Published: December 2023

A KXe laser was engineered through excitation of K-Xe collisional pairs and populating K atomic levels. Lasing occurred on the K D1 line.
Referenceless Characterisation of Complex Media Using Physics-Informed Neural Networks
Authors: Goel Suraj , Conti Claudio , Leedumrongwatthanakun Saroch , Malik Mehul
Published: December 2023

We accurately characterize the transmission matrices of complex scattering media using a physics-informed, multi-plane neural network (MPNN) without a known reference field. Our method is extremely noise-robust and can characterize a cascade of transmission matrices.
Nested Loop Phase Control Algorithm for Hybrid Coherent Beam Combining: Simulation and Experimental Validation
Authors: Sankar Viswanathan , C.L. Linslal , Maji Satyajit , M.S. Sooraj , Srinivasan Balaji
Published: December 2023

We report the simulation results and experimental validation of a nested loop phase control algorithm for coherent beam combining through a hybrid scheme. Our experimental results provide a strong validation of our simulation results.
Indium Tin Oxide Spatial Light Modulators: Exploring Their Potential for PIC Integration
Authors: Wang Hao , Thomaschewski Martin , Ye Jiachi , Kang Haoyan , Gui Yaliang , Sorger Volker J. , Dalir Hamed
Published: December 2023

We present an innovative electrically tunable Indium Tin Oxide (ITO) meta-surface, revolutionizing high-speed optical data processing. It seamlessly integrates with VCSELs and PICs, opening new possibilities in the field.
Pulse Oximeters, why a multi-wavelength approach could be used to detect other biomarkers?
Authors: Ochoa-Gutierrez Victor , Guerrero-Zuñiga Selene , Reboud Julien , Harvey Andrew R. , Cooper Jonathan M.
Published: December 2023

Two-wavelength oximetry limitations; sensitive to skin pigmentation and cannot detect other biomarkers. We report the potential of broadband transmissometry for multi-parameter assessment of blood that is also insensitive to skin pigmentation.
Changes in morphology, transparency and biomechanics of the crystalline lens assessed with in vivo high-resolution and high-sensitive optical imaging
Authors: Grulkowski Ireneusz , Soman Keerthana , Gupta Ashish , Ruminski Daniel , Villar Alfonso Jimenez , Toledo Raúl Duarte , Pierscionek Barbara , Artal Pablo
Published: December 2023

We determined the geometry and transparency of the crystalline lens in a group of healthy subjects at different ages using optical coherence tomography. High-speed imaging enables visualization of optical signal discontinuity zones during accommodation response.
Advancing Mid-Infrared Sensing: A Novel Approach to Design Focal Plane Arrays for Enhanced Detection
Authors: Nazari Masoumeh , Banad Yaser Mike , Sharif Sarah Safura
Published: December 2023

We introduce a pioneering approach to design Focal Plane Array (FPA)-based spectrometers featuring several perfect nano-size absorbers to accurately determine the wavelength of incident light, eliminating the need for conventional bulky spectrometers and enhancing portability and efficiency for various applications.
Ultraminiature Gold Nanochains for Multimodal Photoacoustic Microscopy, OCT, and Fluorescence Molecular Imaging of Choroidal Neovascularization
Authors: Nguyen Van Phuc , Qian Wei , Zhe Josh , Hu Justin , Ahmed Umayr , Zhang Wei , Liu Bing , Wang Xueding , Paulus Yannis M.
Published: December 2023

We present novel ultraminiature gold nanochains as contrast agents for enhanced visualization of choroidal neovascularization using multimodal photoacoustic microscopy (PAM), optical coherence tomography (OCT), and fluorescence imaging in living rabbits.
Combination of Photoacoustic and Optical Coherence Tomography imaging modalities for visualization of Laser induced Choroidal Neovascularization Progression in Pigmented Rabbits
Authors: Ahmed Umayr , Nguyen Van Phuc , Zhe Josh , Hu Justin , Henry Jessica , Wang Xueding , Paulus Yannis M.
Published: December 2023

This study presents a novel multimodality photoacoustic microscopy (PAM) and optical coherence tomography (OCT) imaging techniques for longitudinal visualization of laser induced choroidal neovascularization (CNV) pathogenesis in pigmented rabbits.
Design and Assembly of a Prototype Equipment for Measuring the Refractive Power of Progressive Ophthalmic Lenses
Authors: Rodríguez-Mendoza Santiago , Mejía-Barbosa Yobani
Published: December 2023

The design and assembly of a prototype device to measure the refractive power of progressive ophthalmic lenses is presented. We highlight its capabilities and expected applications in ophthalmology and the optical industry.
Machine learning aided classification of SHG microscopy images of esophageal squamous cell carcinoma progression and high-grade dysplasia
Authors: Makkithaya Kausalya Neelavara , Zhuo Guan-Yu , Mazumder Nirmal
Published: December 2023

Computational analyses such as textural analysis play an important role for the effective study of pathological images, it enables faster analysis and allows image classifications based on many features.
Deformation measurement using phase retrieval iterative algorithm
Authors: Gautam Surya Kumar , Naik Dinesh N
Published: December 2023

To ensure consistent reconstruction consecutively in the phase retrieval iterative algorithm, without encountering any twin artifacts, we have implemented a two-beam illumination scheme. This approach enables us to accurately measure the deformation of the object's surface.
Generation of controllable optical vortex array by in-line phase modulation with a light emitting diode
Authors: Shikder Allarakha , Nishchal Naveen K.
Published: December 2023

In this study, we demonstrate the generation of various optical vortex lattices by modulating phase distributions using a phase concatenation approach and a light emitting diode as the light source.
Improvement of strain resolution by deep learning in an OFDR system
Authors: Zhang Zhaopeng , Peng Wei , Ma Lingmei , Zhu Chen
Published: December 2023

A deep learning approach to improving strain resolution in OFDR systems is proposed, where a resolution of 1.1 µє (standard deviation) on a 140 m-fiber with a spatial resolution of 4 mm is experimentally achieved.
Multi-photon Lasing in the Incoherently Driven Two Quantum Dots-Cavity System
Authors: Addepalli Lavakumar , Pathak P.K.
Published: December 2023

We show the multi-photon emission into cavity mode in the incoherently pumped two quantum dots coupled to single mode photonic-crystal cavity and studied the effect of exciton-phonon interaction using polaron transformation technique.
Image restoration for fluorescence microscopy using optimal sparsity and camera modeling
Authors: Mandracchia Biagio , Liu Wenhao , Hua Xuanwen , Forghani Parvin , Lee Soojung , Nie Shuyi , Xu Chunhui , Jia Shu
Published: December 2023

In fluorescence microscopy, the quality of the acquired images determines the extent of observable biological phenomena. To address the different noise sources degrading these images, we introduce a model-based framework compatible with several microscopy systems independently from the detector used.
Gap Solitons supported by Photonic Lattices in Photovoltaic Crystals
Authors: Katti Aavishkar , Umesh Draupath , Choudhury Kaushik , Kulkarni Sachin
Published: December 2023

We prove the existence of gap solitons supported by a photonic lattice embedded in an unbiased photovoltaic photorefractive crystal for the first time. Double-hump and multi-hump gap solitons are found to exist in the first finite band gap but no gap solitons are found to exist in the second finite band gap.
Brillion selection of a single mode from dense Optical Frequency Comb
Authors: Terra Osama
Published: December 2023

The spectrum of Optical Frequency Comb (OFC) consists of millions of modes. Phase - noise-compensated Stimulated Brillion Scattering is applied here to select a true single mode from an OFC with relative stability of 10
-
17.
Intracavity Power Compensation of an 8.2 µg/Hz1/2 VRW Chip-Scale Optomechanical Accelerometer
Authors: Samoylov Alexis , Yerebakan Talha , Flores Jaime Gonzalo Flor , Solomon Jim , Nasseraddin Connor , Matsko Andrey , Wong Chee Wei
Published: December 2023

Here, we address issues with frequency stability by power fluctuations on 8.2 µg/Hz1/2 VRW optomechanical inertial sensors stabilizing the power delivered to the optical cavity. Short and long-term frequency stability effects are also analyzed.
Pockels coefficient enhancement by phonon mode softening on strain engineering in Sputtered PZT-on-Si electro-optic modulator
Authors: Suraj  , Selvaraja Shankar Kumar
Published: December 2023

We demonstrate phonon mode softening with 300% increase in Pockels coefficient using strain-engineered PZT loaded Silicon MZI having Pt buffer layer. It is corroborated by 400% increase in EO tensor using DFT simulations.
Nearly Perfect and Wavelength-Adjustable Hexa-Narrowband Absorber using a One-Dimensional Defective Photonic Crystal Structure with Two Graphene Defects
Authors: Priyam Angkur Ghosh , Chowdhury Md. Mahdi Asef , Rahman Sabrina , Basak Ayon Kumar , Datta Ayon , Toma Tahera Shormila , Khan Fayzan Kowshik
Published: December 2023

We propose a wavelength-adjustable hexa-narrowband absorber using a one-dimensional photonic crystal structure with two graphene defects that can achieve higher than 95% absorption for six different wavelengths in the visible spectrum.
Performance Enhancement of Quantum-Dash Comb Laser by Combined Use of broadband Noise Source and Self-injection locking
Authors: Driouche Youcef , Benkelfat Badr-Eddine , Merghem Kamel
Published: December 2023

We experimentally demonstrate quantum-dash laser performance improvement by injecting optical noise and coherent feedback. The results show the amplification of the side mode lines while preserving the mode-locking and drastically reducing the individual comb linewidth.
Generation of limited depth of field and transverse extent nearly Bessel beams using finite width Durnin’s circular slits
Authors: Sakah Mahmud , Chebbi Brahim
Published: December 2023

In order to generate Bessel beams using Durnin's circular slits, the width of the slits has to be small enough to justify the mathematical principle that the Fourier transform of a thin circular slit placed at the focal plane of a converging lens is a Bessel function of the first kind of zero order. Using circular slits with finite width reduces the depth of field (DOF) and transverse extent of the generated beams. We investigate experimentally and numerically the effect of increasing the slits' width on the quality of the generated nearly Bessel beams. We pay special attention to the longitudinal and transverse extent of the generated beams, their near-diffraction-less property and their quality at the focal plane and along the DOF.
Compact mid-infrared Raman soliton source with widely tunable range based on heavily GeO2-doped fiber
Authors: Zhang Q. , Jin X. , Zheng Z. , Zhang M.
Published: December 2023

We report the generation of widely tunable Raman soliton with wavelength tuning range up to 300 nm based on heavily GeO2-doped fiber, which provides an effective way to realize compact, all-fiber ultrafast mid-infrared laser source.
Manipulating the Strong Airy Pulse Utilizing Weak Airy Pulse in the Regime of Optical Event Horizon
Authors: Gaur Deependra Singh , Mishra Akhilesh Kumar
Published: December 2023

We study the dynamics of Airy pulse interaction in the regime of optical event horizon where soliton shedding from Airy pulse is treated as the temporal boundary.
Single-Cycle THz Pulse Generation Optimization from OH1 Crystal Pumped by a Cr:Forsterite Laser
Authors: Ovchinnikov A. V. , Chefonov O. V. , Sitnikov D. S. , Romashevskiy S. A. , Agranat M. B.
Published: December 2023

We present the results of experimental investigations of terahertz radiation generation in an OH1 nonlinear organic crystal with different thickness pumped by femtosecond laser pulses at 1240 nm wavelength.
Brillouin Light Scattering in Highly Excited Silicon
Authors: Romashevskiy S. A. , Ashitkov S. I. , Evlashin S. A.
Published: December 2023

The features of detection of propagating in silicon coherent acoustic phonons generated upon strong laser excitation of the top metal nanofilm via time-domain Brillouin scattering are investigated. The generation of electron-hole plasma in silicon along with Beer–Lambert law result in a shrinkage of the silicon layer thickness to be studied.
Evanescent waveguide sensor for the detection of chromium concentration in water: performance evaluation
Authors: Buzzin Alessio , Alaeddini Ahmadreza , Asquini Rita , Caputo Domenico , Quaranta Simone , de Cesare Giampiero
Published: December 2023

We evaluate the detection performance for chromium content in water of a compact, inexpensive evanescent-waveguide sensor: the achieved 43 pA/% sensitivity and 47 ppm limit of detection enable applications as smart in-situ water pre-screening tool.
Demonstration Based Student Enrichment Workshop using a Helium-Neon Laser
Authors: Ghosh Sumit
Published: December 2023

A student enrichment workshop to elicit the possibilities of using a Helium-Neon laser light was organized. Development of laser light has led to several new applications and capabilities. To showcase this continuous progress of lasers, various laser-based experiments were demonstrated.
Cross Polarization in Bessel-Gaussian Light Beams
Authors: Khan Sameen Ahmed
Published: December 2023

A formalism of light polarization is presented based on an exact matrix-representation of Maxwell’s equations, using quantum methodologies. The formalism explains the cross polarization in Bessel-Gaussian light beams.
Dual wavelength polarization multiplexed metalens for ultracompact STED Microscope
Authors: Sardana Jyoti , Agrawal Amit , Joseph Joby
Published: December 2023

We propose a single layer metasurface for achromatic focusing of two different wavelengths with two different spatial structures for high-resolution STED microscopy, which is difficult to achieve in the conventional method. By employing the dichroic birefringent metaatom technique, the metasurface is specifically designed to focus excitation Gaussian beam of 532nm and doughnut-shaped depletion spot with a vortex phase of 660nm at the same focal distance. The proposed approach could enable high resolution, ultracompact STED microscope.
Study of Frequency Manipulations of Depletion Pattern in 2D SIM based on both Structured Excitation and Stimulated Emission Depletion Material
Authors: Tiwari Anupriya , Joseph Joby
Published: December 2023

This paper presents simulation studies on the harmonic strength of two-dimensional Structured Illumination microscopy based on structured excitation and structured stimulated emission depletion due to variations in the frequency of structured depletion pattern with respect to excitation pattern.
Control of Spectral Properties in 1D Defective Photonic Crystals by Doping with Two-Level Atoms
Authors: Ghangas Nancy , Dasgupta Shubhrangshu
Published: December 2023

We investigated the spectral properties in one dimensional defective photonic crystals by doping defect layer with the two-level atoms and observed the switching of near-complete reflection to zero in the critical coupling regime.
Testing of the Polaroid SX-70 the Free Form by Optical Deflectometry
Authors: Santamaría-Juárez Efren , Cornejo-Rodríguez Alejandro , Díaz-Uribe José Rufino
Published: December 2023

The testing of the Free Form of the viewfinder Polaroid SX-70 camera by Optical Deflectometry is presented; shape variations of 150 µm with differences of 37 µm P-V and 9 µm were measured.
Design and Assessment of a Cross-polarized Colposcopy Filter (Clear Gyero) for Mitigating Glare from Colposcopy Images
Authors: Vijayan Aromal , Anbumuthu Ramya , Rafi.M.H Rameesa , Anantharaju Arpitha , Sangeetha.R.G  , Pal Uttam M.
Published: December 2023

Quantifying the reduction in the percentage of glare by using polarized light colposcopy compared to standard colposcopy examinations for enhanced quality of cervical images.
Quantum-Photonic Treatment for Laser Induced Breakdown Threshold estimation
Authors: Ghasemi Mehrdad , Kaatuzian Hassan
Published: December 2023

Laser induced breakdown means the number of ionized molecules exceed 0.4% of total molecules. In this paper we have used fifth theory called quantum photonics for explaining photon-electron interactions to estimate plasma shielding and multi photon ionization (MPI) and predict in theory ionization threshold for water substance.
An Analytical Computational Model for Birefringent Scattering
Authors: Mu Shuqi , Shi Yingtong , Song Yintong , Shi Kebin
Published: December 2023

We present an analytical computational tool for modeling field propagation in a birefringent scattering medium. By comparing with existing computational methods, proposed model is capable of performing various scattering calculations with high accuracy and efficiency.
Assesment and Comparison of Three Different Coupling Methods Used to Couple Light into and out of a Sandwiched MDM Plasmonic Waveguide Between Two Dielectric Waveguides
Authors: Wahsheh Rami A.
Published: December 2023

A comparison of the performance of air-slot, air-gap, and splitter
couplers has been investigated. We found that the splitter coupler
achieves higher coupling efficiency, wider spectrum, and better
alignment tolerance than the other two couplers.
Automated system for Zscan technique to optimize the measurement of optical nonlinear properties
Authors: Herrera Julian Orozco , Alzate Raul E. , Jimenez Raul E. , Rendon Julian E. , Torres Pedro I. , Herrera Rodrigo Acuna
Published: December 2023

We present an automated experimental set-up for measuring the nonlinear optical properties of samples by getting several Zscan traces under different laser powers and apertures without any human intervention.
Structural Dynamics of Thioflavin T during the Intramolecular Charge Transfer by Time-Resolved Raman Spectroscopy
Authors: Lee Sebok , Jang Taehyung , Im Jongwon , Pang Yoonsoo
Published: December 2023

Intramolecular charge transfer of thioflavin T has been investigated by time-resolved Raman spectroscopy, where the multimodal structural changes of the ICT dynamics including the twist and bend of dimethylaminophenyl group are separately observed in numerous in-plane and out-of-plane deformations and the skeletal stretching vibrations of thioflavin T in polar protic solvents.
Programmable Generation of Arbitrary Vector Beams by Unitary Transformations
Authors: Feng Feng , Xue Zezheng
Published: December 2023

We present an interferometric method to generate arbitrary vector beams loss-lessly through reconfigurable unitary transformations. By this, we numerically demonstrate the accurate generation of various vector beams of different orders, including higher-order Poincare sphere beams.