bluuebunny/crossref_metadata_2025 huggingface dataset:
Ομιλητική προσέγγιση των ερμηνειών στα τρία πρώτα κεφάλαια της Γένεσης του αρχιμανδρίτου Αθανασίου Μυτιληναίου
Authors: Κολτσικίδης Αναστάσιος
Published: December 2024

Η παρούσα διατριβή φέρει τον τίτλο «Ομιλητική προσέγγιση των ερμηνειών στα τρία πρώτα κεφάλαια της Γένεσης του Αρχιμανδρίτου Αθανασίου Μυτιληναίου» και προσεγγίζει ομιλητικά τις 71 ομιλίες του εν λόγω πατρός για την ερμηνεία των 80 πρώτων στίχων της Γένεσης, οι οποίες εκφωνήθηκαν από τις 24-10-1982 έως τις 31-3-1985. Στο πρώτο από τα τρία μέρη της διατριβής καταρτίζεται η βιογραφία του Γέροντα, περιγράφεται το ομιλητικό του έργο και ταξινομείται σε επτά κατηγορίες με πολύτιμα στοιχεία για τις σχεδόν 5211 ομιλίες που εκφώνησε, για την απομαγνητοφώνησή τους και για την εκδοτική τους αξιοποίηση. Παρακάτω, σκιαγραφείται ο π. Αθανάσιος ως ιεροκήρυκας και ανιχνεύονται οι ομιλητικές του αρχές. Οι ομιλίες του είναι μαθήματα με στόχο την διάπλαση σκεπτόμενων χριστιανών, οι οποίοι με γνώμονα τον Λόγο του Θεού θα είναι σε θέση να διαμορφώνουν ασφαλή κριτήρια για την πορεία τους στην εν Χριστώ ζωή. Επιπλέον, εντοπίζονται, σύμφωνα με τον Γέροντα Αθανάσιο, τα γενικά ομιλητικά χαρακτηριστικά που πρέπει να κοσμούν έναν ιεροκήρυκα, καθώς και οι προϋποθέσεις γόνιμης καρποφορίας του κηρύγματος. Στη συνέχεια, περιγράφεται ο τρόπος προετοιμασίας του κηρύγματος εκ μέρους του ομιλητή, οι πηγές του, τα γενικά χαρακτηριστικά του ύφους του, οι ερμηνευτικές του μέθοδοι και εν τέλει η πρωτοφανής απήχησή του στον λαό. Στο δεύτερο μέρος της εργασίας, για την ερευνητική πρόκληση μελέτης εβδομήντα και μίας (71) εσπερινών ομιλιών συντάχθηκε ένας πίνακας ομιλητικής ανάλυσης συνοδευόμενος από αντίστοιχο επεξηγηματικό ομιλητικό οδηγό, βάσει του οποίου συνάγονται από κάθε ομιλία τα εξής δεδομένα: τα γενικά στοιχεία, η περίληψη, το ομιλητικό είδος, οι ερμηνευτικοί τρόποι και η δομή, οι πηγές, τα μέσα ανάπτυξης επιχειρημάτων, τα σχήματα της διανοίας και το ύφος κάθε ομιλίας. Οι κεντρικές ερμηνευτικές διδαχές και απολογητικές θέσεις του ομιλητή στο πλαίσιο της Χριστιανικής Κοσμολογίας και Ανθρωπολογίας παρουσιάζονται στο τρίτο μέρος της διατριβής με τη μορφή κατηχητικού υπομνήματος. Εν κατακλείδι, η ακαδημαϊκή ανάδειξη του ομιλητικού έργου ενός σύγχρονου επιφανούς ιεροκήρυκα, η προβολή της προσωπικότητάς του και των ομιλητικών του αρχών, η κατάρτιση ειδικού ομιλητικού οδηγού με σκοπό την ομοιόμορφη ανάλυση μεγάλου αριθμού ομιλιών και η προβολή των κεντρικών διδαχών στα καίρια κοσμολογικά και ανθρωπολογικά θέματα για την περαιτέρω κατηχητική τους αξιοποίηση συναποτελούν τους τρεις πυλώνες πρωτοτυπίας της παρούσας διατριβής.
Cognitive Stimulation Therapy for older people with Dementia in Africa: A Scoping Review
Authors: Wandera Stephen Ojiambo , Duncan Edward , Diaz Monica Maria , Ayuku David Otundo
Published: December 2024

Background Cognitive Stimulation Therapy (CST) is a non-pharmacological intervention developed for dementia that is useful in Africa but has not been studied widely. We reviewed the existing evidence regarding CST among older people living with dementia in Africa. Methods A systematic literature search on CST among older people with dementia in Africa from 2000–2021 was done in MEDLINE (PubMed), CINAHL (EBSCOhost), and PsycINFO. A narrative approach was taken to chart, synthesize and interpret the data using Microsoft Excel. Results After removing duplicates using Endnote, a total of 122 studies were retained and screened first by title, then abstract, and finally by full text. Six articles matched the inclusion/exclusion criteria. CST has been adapted and piloted in two African countries (Nigeria and Tanzania). CST studies in Africa indicate improvements in clinical outcomes including cognition and quality of life. Although there are some barriers to overcome, CST has significant facilitators in an African context. Conclusions CST is feasible, adaptable, and acceptable in the African countries it has been implemented in. Some cultural barriers, such as religious affiliation and respect for older people, should be overcome. Further research is needed to further evaluate the efficacy of CST in various African contexts.
The genome sequence of the Brown Heath Robberfly, Tolmerus cingulatus (Fabricius, 1781)
Authors: Mitchell Ryan ,   Natural History Museum Genome Acquisition Lab,   Darwin Tree of Life Barcoding collective,   Wellcome Sanger Institute Tree of Life Management, Samples and Laboratory team,   Wellcome Sanger Institute Scientific Operations: Sequencing Operations,   Wellcome Sanger Institute Tree of Life Core Informatics team,   Tree of Life Core Informatics collective,   Darwin Tree of Life Consortium
Published: December 2024

We present a genome assembly from an individual male Tolmerus cingulatus (Brown Heath Robberfly; Arthropoda; Insecta; Diptera; Asilidae). The genome sequence has a total length of 280.00 megabases. Most of the assembly (88.86%) is scaffolded into 6 chromosomal pseudomolecules, including the X and Y sex chromosomes. The mitochondrial genome has also been assembled and is 20.2 kilobases in length. Gene annotation of this assembly on Ensembl identified 12,047 protein-coding genes.
A Familiar Face in the Treatment of Immunoglobulin A Vasculitis: Colchicine
Authors: Polat Merve Cansu , Işıklar Ekici Mehveş , Kaplan Melike Mehveş , Çelikel Elif , Ekici Tekin Zahide , Güngörer Vildan , Karagöl Cüneyt , Öner Nimet , Öztürk Didem , Özçelik Emine , Uğur Es Yasemin , Yoğun Sultan Nilay , Acar Banu
Published: December 2024

Objective: The aim of the this study was to evaluate immunoglobulin A vasculitis (IgAV) patients on colchicine therapy and determine the causative factors leading to the initiation and maintenance of colchicine.

Material and Methods: This retrospective study was conducted receiving IgAV patients on colchicine at our clinic between January 2013 and June 2023. Demographic, clinical, and laboratory data of IgAV patients were obtained from their electronic medical records.

Results: A total of 33 IgAV patients receiving colchicine, 20 (60.6%) males and 13 (39.4%) females, were included in the study. The mean age at diagnosis of IgAV was 111.6±45.5 months. Colchicine was initiated in 13 (39.4%) patients with persistent rash, 8 (24.2%) with severe gastrointestinal tract involvement, seven (21.2%) with generalized/severe rash, and five (15.2%) with recurrent IgAV. The median elapsed time to colchicine initiation was 30 (10.5-60) days. The median duration of colchicine usage was ten (IQR, 6-54) months.
Colchicine treatment was discontinued in 14 patients after a median 6.5 (IQR, 3-11.2) months. At the last visit, 13 (39.4%) patients were receiving colchicine for familial Mediterranean fever (FMF), four (12.1%) for recurrent IgAV, and two (6.1%) for persistent rash.

Conclusion: Colchicine should be kept in mind especially in the presence of severe, persistent or recurrent rash. Early initiation of colchicine treatment should be considered in IgAV patients with severe GI tract disease, especially in countries where FMF is common.
"Antes que a Bala Perdida me Ache": Saúde Mental da População Negra e Violência Policial
Authors: Afonso do Nascimento Geovana , Medeiros Ana Paula
Published: December 2024

A violência policial se constitui como um fenômeno marcado por discriminações quando voltados para corpos negros, visando o controle desses corpos através da violência. A pesquisa buscou compreender como se configura a saúde mental da população negra frente à essa violência, bem como sua relação com o racismo. Como método, numa perspectiva qualitativa, utilizou-se a revisão narrativa de inspiração cartográfica, que consistiu na utilização de fontes de informações bibliográficas para fundamentar teoricamente o trabalho, de forma a possibilitar a compreensão do "estado da arte" do objeto estudado. A arte, sobretudo as letras de rap, auxiliaram nesse processo de apreensão do fenômeno. Com isso, pôde-se analisar a raça como um fator primordial na construção da desigualdade, que se materializa na polícia militar enquanto instituição. A militarização da polícia se revela como um aparato de opressão seletiva da população negra, possuindo forte influência em sua saúde mental. Além da adoção de medidas tecnológicas para o enfrentamento do problema, observou-se que a arte se apresenta como uma forte aliada na conscientização, pertencimento, refúgio e luta para quem se encontra em meio ao campo de batalha.
All I want for Christmas…
Authors: Wassif Hoda
Published: December 2024

Hoda Wassif reminds us of the need for human connection.
A winning formula
Authors: Garlo Nina
Published: December 2024

Nina Garlo explores how oral health and new technologies can boost athletic performance.
A fond farewell?
Authors: Symons Anne
Published: December 2024

Anne Symons reviews the latest advertising ban for junk foods.
Embracing online learning
Authors: Reed Ava
Published: December 2024

Ava Reed discusses why online learning is so valuable for dental nurses.
Analytical model of a microlens array homogenizer based on an angular spectrum diffraction method
Authors: Mi Yuan , Cai Xiaomian , Zhou Dakai , Chen Youhua , Kuang Cuifang
Published: December 2024

To analyze the effects of various aspects on the outcome of a microlens
array (MLA)-based homogenizer, an angular spectrum method (ASM)-based
toolkit was developed for designing the MLA-based homogenizer and
introduced in this study. A finer rotating diffuser model was
developed to more accurately model a practical diffuser and enhance
the comprehension of the temporal integral. An intuitive algorithm was
used to simulate the entire temporal integration process. Experiments
and simulations were conducted to verify the practicality of the
toolkit. Three evaluation functions—uniformity, speckle contrast, and
flatness—were used to evaluate the homogeneity of the homogenizer. The
results under various conditions, including different Fresnel numbers,
were analyzed. Simple standards for designing an MLA-based homogenizer
were derived as a guide. This toolkit facilitates a flexible and
precise homogenizer design and can also be used for other optical
systems based on wavefront manipulation.
Gas detection based on a mid-infrared super-pixel multi-spectral imaging device
Authors: Hu Huandong , Liu Qingquan , Ji Ruonan , Xuan Zhiyi , Zhi Ying , Wu Mingfei , Chen Honglei , Wang Xiaokun , Dong Feng , Lu Wei , Wang Shaowei
Published: December 2024

Gas detection is an important application area in industry. The detection of CO2 plays a crucial role in environmental protection. However, the primary challenges in achieving atmospheric CO2 and other detection of other gases revolve around developing instrumentation featuring a broad detection range, heightened sensitivity, and dynamic real-time capabilities. To address these challenges, a four-channel multi-spectral imaging device utilizing a super-pixel filter array (SFA) for simultaneous detection of multiple gases in the mid-infrared (MIR) is introduced in this work. The device demonstrates selective transmittance at wavelengths of 3.92, 4.08, 4.29, and 4.40 µm, achieving a spectral resolution (δλ/λ) of 1%. The SFA’s narrowband filtering capability facilitates real-time imaging detection of multiple gases by its high spectral selectivity of each super-pixel unit. Multi-channel spectral detection capability means that our detectors can detect multiple target gases simultaneously according to the specific spectral channel of each unit. Finally, the great potential of this technique for CO2 detection was verified by a demonstration experiment.
Low-Cost and DSP-Free SOP-Based Fiber Sensing Integrated in Optical Communication Systems
Authors: Yang Bang , Zhuo Quhao , Tang Jianwei , Wang Shangyi , Chen Jiaxin , Xu Mingfu , Gao Shuang , Gao Guodong , Dai Kuntian , Yao Yong , Yang Yanfu
Published: December 2024

A low-cost integrated communication and DSP-free sensing solution is demonstrated across scenarios including robot intrusion and gimbal shake, offering versatile and robust performance for real-world applications.
3 µm Driven High Harmonic Generation in an Anti-Resonant Hollow Core Fiber
Authors: Hettel W. , Morrill D. , Carlson D. , Thurston J. , Klein C. , Golba G. , Larsen R. , Kapteyn H. , Murnane M. , Hemmer M.
Published: December 2024

We report the generation of high harmonics in an anti-resonant hollow-core fiber driven by an ultrastable ~0.3% RMS, kHz laser at 3 µm wavelength. This geometry enables lower-loss guiding of mid-IR lasers.
Integrated Multi Cavity-Soliton Phase Locking via Kerr-Induced Synchronization for Microcomb Metrology Applications
Authors: Shandilya Pradyoth , Ou Shao-Chien , Menyuk Curtis R. , Srinivasan Kartik , Moille Grégory
Published: December 2024

We show that in Kerr-induced synchronization, multi-soliton integrated frequency comb states show the same metrological performance as single soliton states, thanks to common phase-locking trapping by the reference pump laser.
Recent advances in high-speed imaging with parallel phase-shift digital holography
Authors: Awatsuji Yasuhiro , Rajput Sudheesh K. , Inoue Tomoyoshi , Nishio Kenzo , Natsu Hou , Matoba Osamu
Published: December 2024

The authors review recent advances in high-speed imaging of dynamic object with parallel phase-shifting digital holography. 3-D imaging of temperature of the air surrounding a heated object was demonstrated as an example of the advances.
Differentiable Holography and its Development
Authors: Chen Ni , Brady David J.
Published: December 2024

We show that differentiable holography allows for inline single-shot complex field imaging, high-performance pixel super-resolution lensless imaging, and denser volumetric particle velocimetry in a single shot.
Driverless On-Chip Sub-THz Plasmonic Modulator Antenna Receiver
Authors: Ibili Hande , Blatter Tobias , Kulmer Laurenz , Baumann Michael , Turki Salim , Horst Yannik , Koepfli Stefan M. , Vukovic Boris , Smajic Jasmin , Leuthold Juerg
Published: December 2024

We present an amplifier-free on-chip antenna-integrated plasmonic modulator receiver in sub-THz regime. A framework for designing plasmonic antennas and transmission of up to 80Gbit/s in a wireless sub-THz link starring these receivers are shown.
Tunable and Reconfigurable 10-Gbaud Optical Data Format Aggregation of Two Independent Channels with Constellation Biasing by using Nonlinear Wave Mixing
Authors: Ko Wing , Alhaddad Abdulrahman , Minoofar Amir , Karapetyan Narek , Zhou Huibin , Ramakrishnan Muralekrishnan , Jiang Zile , Su Xinzhou , Tur Moshe , Habif Jonathan L. , Willner Alan E.
Published: December 2024

We experimentally demonstrate the optical format aggregation of two independent channels using nonlinear wave mixing. Using the same system, we show multiple format aggregation (2 BPSK-to-QPSK, 2 QPSK-to-16QAM, and 2 OOK-to-QPSK) at different baud rates (5/10 Gbaud).
Exploring ultralow-loss cladding and packaging for integrated nonlinear nanophotonics
Authors: Dan Atasi , Zang Jizhao , Newman Zachary L. , Carlson David R. , Papp Scott B.
Published: December 2024

We explore silicon-dioxide cladding deposition of nonlinear nanophotonic devices, which are designed to generate soliton microcombs. We demonstrate ultralow-loss claddings that faciliate complex nonlinear phenomena, packaged device prototypes, and heterogeneous integration.
Amorphous Metal-Oxide Mixtures for Integrated Nonlinear Photonics
Authors: Carollo Alexa R. , Zang Jizhao , Dan Atasi , Brodnik Grant M. , Liu Haixin , Carlson David R. , Black Jennifer A. , Papp Scott B.
Published: December 2024

We explore integrated nonlinear photonics with amorphous metal-oxide mixtures of titania and tantala (TiO2-Ta2O5). Our experiments demonstrate that designing titania-tantala material composition leads to increased microresonator quality factor and improved photonics layer properties.
Physics-informed neural networks for classical and quantum communication with multimode fibers
Authors: Zhang Qian , Sun Jiali , Rothe Stefan , Czarske Jürgen
Published: December 2024

Physics-informed neural networks provide mode decomposition based on intensity-only images in high-dimensional quantum communication using multimode fibers.
Neural Network-Based Orbital Angular Momentum Multiplexing via a Camera-in-the-Loop Approach
Authors: Asoudegi Nima , Mojahedi Mo
Published: December 2024

We employ a gradient descent method and a neural network, along with a learned propagation model, to design orbital angular momentum multiplexed holograms. This approach significantly enhances information capacity and image fidelity.
Programable High-dimensional Quantum Gates via MPLC
Authors: Dahl Daniel S. , Plöschner Martin , Fontaine Nicolas K. , Romero Jacqui , Carpenter Joel
Published: December 2024

We use multi-plane light conversion (MPLC) to implement a programmable high-dimensional quantum gate device for 17-dimensional qudits using Laguerre-Gaussian modes. Verified gates include X-gate, Z-gate, and Discrete Fourier Transform (DFT)-gate, enhancing quantum communication and computing.
Co-transmission of quantum and coherent signals on a single frequency channel via the serrodyne technique
Authors: Riibeling Philip , Heine Jan , Johanning Robert , Kues Michael
Published: December 2024

Co-transmission of coherent signals and frequency-entangled photons over a single frequency channel is experimentally demonstrated via the serrodyne technique. Our approach preserves entanglement and paves the way towards scalable and efficient hybrid quantum coherent networks.
Enhancing Passive Upconversion Imaging in the Near-Infrared Using Nanostructures
Authors: Hamid Rabeeya , Feng Demeng , Belliveau Emma , Hu Manchen , Edwards Justin , Kim Minjeong , Narayanan Pournima , Wan Chenghao , Czaplewski David A. , Congreve Daniel N. , Kats Mikhail A.
Published: December 2024

We demonstrate high-resolution upconversion imaging without any external power input at near-infrared intensities approaching nightglow levels. This is achieved through a combination of materials engineering combined with nanostructures that enhance the absorption of incident near-infrared light and collection of emitted visible light.
Enhancing Telecommunication and Data Communication with Silicon Integrated Photonics
Authors: Ye Winnie N. , Gostimirovic Dusan , Xiong Yule , MacKay Kevan K. , Khajavi Shahrzad , Fraser William , Xin Xiaochen , Benedikovic Daniel , Dorin Bryce A. , Sun Yao , Liu Qiankun , Hao Tianyi , Purwaha Neha , Fatin M. R. , Li S. , Salhi Sarra , Melati Daniele , Sanchez-Postigo Alejandro , Cheben Pavel , Schmid Jens H. , Smy Tom , Atieh Ahmad
Published: December 2024

This paper presents our advancements in silicon integrated photonics for telecommunication and data communication. Our key innovations, including integrated subwavelength gratings, demonstrate promising improvements in device performance and fabrication tolerance.
Cryogenic packaging for scalable hybrid quantum PICs
Authors: Bernson Robert , Witte Alexander , Clark Genevieve , Gradkowski Kamil , Saha Matthew , Leenheer Andrew , Chen Kevin , Gilbert Gerald , Eichenfield Matt , Englund Dirk , O’Brien Peter
Published: December 2024

We demonstrate a robust packaging method for PICs using surface grating couplers. We use this method to create diamond color center quantum memory modules with active photon routing, strain tuning, and operation to millikelvin temperatures.
1.5 TW High-Energy, Few-Cycle Beamline for Relativistic Laser-Matter Interactions
Authors: Meadows Alexander R. , Yamamoto Kiyoshi , Szlafsztein Francisco , Chvykov Vladimir , Menoni Carmen S. , Schmidt Bruno , Rocca Jorge J.
Published: December 2024

We demonstrate the production of 1.5 terawatt, few-cycle laser pulses for irradiation of solid targets at relativistic intensities. Pulses of up to 25 mJ are spectrally broadened in a helium-filled hollow-core fiber and recompressed.
Highly multi-mode anti-resonant hollow core fibres
Authors: Mears Robbie , Harrington Kerrianne , Wadsworth William J , Knight Jonathan C , Stone James M , Birks Tim A
Published: December 2024

We report transmission capacity, propagation loss and bend loss of anti-resonant fibres with 7, 12 and 24 cladding tubes. The 24-tube fibre transmits ~50× more light than the 7-tube fibre for the same source.
Designing Broadband Dielectric Mirrors using 3D Periodic Nanolattices
Authors: Premnath Vijay Anirudh , Chang Chih-Hao
Published: December 2024

This research involves designing and demonstrating broadband near-100% reflectance in multilayer 3D nanolattice reflectors with stacked layers of alternating high (TiO2) and low (Al2O3) refractive indices by varying geometric properties like layer thickness and periodicities.
High Power Photonic Wavelength Conversion Using Nanopatterned Microresonators
Authors: Williams Lindell M. , Brodnik Grant M. , Liu Haixin , Carlson David R. , Black Jennifer A. , Papp Scott B.
Published: December 2024

We demonstrate microresonators with sub-wavelength, periodic patterns for high output power optical-parametric oscillation. Precise control of phase-matching using the nanopattern enables output power exceeding 70 mW and side-mode suppression greater than 50 dB.
Narrow Linewidth Tabletop Vacuum-Ultraviolet Laser at 8.4 eV
Authors: Thurston Jeremy , Weiner Liam , Morrill Drew , Kafle Tika , Murnane Margaret , Kapteyn Henry
Published: December 2024

We generate bright coherent tabletop VUV harmonics with linewidths <30 meV in a xenon-filled anti-resonant hollow core fiber, providing an efficient and compact approach for direct excitation of the low energy 229mTh nuclear isomer.
Wavelength-multiplexed Multiplane Quantitative Phase Imaging Using Diffractive Visual Processing
Authors: Shen Che-Yung , Li Jingxi , Gan Tianyi , Li Yuhang , Bai Langxing , Jarrahi Mona , Ozcan Aydogan
Published: December 2024

We present a wavelength-multiplexed diffractive optical processor that can transform the phase profiles of input objects at multiple axial depths into intensity variations at different wavelengths, enabling rapid multiplane quantitative phase imaging (QPI).
Complex-valued linear transformations and image encryption through a spatially incoherent diffractive optical network
Authors: Yang Xilin , Rahman Md Sadman Sakib , Bai Bijie , Li Jingxi , Ozcan Aydogan
Published: December 2024

We present a spatially incoherent diffractive processor, performing complex-valued linear transformations between its input and output apertures. This framework expands potential applications of diffractive optical processors for image processing and encryption under spatially incoherent illumination.
Scalable and piezoelectrically tunable hybrid quantum photonic crystal cavities
Authors: Greenspon Andrew S. , Dong Mark , Khaykin Anders , Christen Ian , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: December 2024

We report concepts of tunable hybrid quantum photonic crystal cavities composed of diamond and silicon nitride materials. This approach gives theoretical unloaded Q > 106 with normalized mode volumes ~1.2(λ/n
eff
)3 and tunability of 760 GHz.
On-chip coupling scheme for synchronization of distant quantum emitters using superradiant coupling channels
Authors: Shugayev Roman , Eichenfield Matt
Published: December 2024

Superradiance offers an efficient approach for coupling of discrete quantum emitters. In this work we propose a novel scheme for on-chip generation of synchronized superradiant spontaneous emission from distant solid state quantum sources.
An Efficient Computational Algorithm for Modeling Slow Soliton Interactions in Microresonators
Authors: Akter Sanzida , Shandilya Pradyoth , Courtright Logan , D’Aguanno Giuseppe , Leshem Amir , Gat Omri , Menyuk Curtis R.
Published: December 2024

Standard simulations of microresonator waveforms are limited by the photon lifetime. We describe a computational method that enables simulations on a laboratory timescale and apply this approach to study two-soliton interactions.
Colliding laser pulses for broadband terahertz wave generation from air plasma
Authors: Chen Yuxuan , He Yuhang , Liu Liyuan , Tian Zhen , Dai Jianming
Published: December 2024

For the first time, we experimentally demonstrate broadband coherent terahertz radiation generation through the interaction of colliding laser pulses with gas plasma.
Tunable Gammadion-Structured Chiral Metamaterial Sensor with ZnO/Ag Layers for Enhanced Visible Region Detection
Authors: Mohamed Hager Fattoh , Ghanim AbdelRahman M. , Faramawy A. M. , Swillam Mohamed A.
Published: December 2024

The study uses a gammadion structure in the visible region, featuring a ZnO between two Ag layers for plasmonic enhancement. The structure induces strong chiral optical responses, with the ZnO layer modulating the sensor's properties.
Enhanced Light Harvesting in PTB7:PC71BM Organic Solar Cells Using Plasmonic Nanostructures
Authors: Sanad S. , Ghanim AbdelRahman M. , Swillam Mohamed A.
Published: December 2024

The progress of organic solar cells has been achieved by modifying high performance to get the best results of power conversion efficiency (PCE). The material that will used is PTB7-PC71BM as an active layer in OSC and the light harvesting can be enhanced by adding different plasmonic nanoparticles (NPs) in the active layer.
Tuning the Degree of Classical Non-Separability of a Vector Vortex Beam
Authors: Patra Bibek Kumar , Brudavanam Maruthi M.
Published: December 2024

A vector vortex beam is generated using a common-path technique. The degree of the classical non-separability of the generated beam is tuned by the reflection of the beam using a simple N-BK7 prism.
Modulation Instability of Ultra-Narrow Gaussian Beams in Nonlocal Nonlinear Media with Higher Order Diffraction
Authors: Mishra Manoj , Yadav Divya , Singh Brajraj , Sharma Mohit , Jana S.
Published: December 2024

This article presents the modulation instability of an ultra-narrow Gaussian beam in nonlocal nonlinear media with second- and fourth-order diffractions. It is found that fourth-order diffraction suppresses the growth rate of the modulation instability.
Graded-index Double-ring-core Fiber with Four Zero-dispersion Wavelengths for Enhanced OAM Supercontinuum Generation
Authors: Peng Qinru , Geng Wenpu , Dong Yongbo , Pan Zhongqi , Yue Yang
Published: December 2024

We propose and design a graded-index double-ring core fiber, achieving a near-zero flat dispersion profile for OAM1,1 mode, enabling a flat and broad 3599-nm supercontinuum generation from 662 nm to 4261 nm at -40 dB.
Efficient Coupling of Single Photons using a Composite Nanostructure
Authors: M Resmi , Bashaiah Elaganuru , Suman Shashank , Yalla Ramachandrarao
Published: December 2024

We report the efficient coupling of single photons from a single dipole source into guided modes of a silica nanotip (SNT) using a composite nanostructure. Experimental realization towards it is also discussed.
Enhanced NH3 Gas Sensing in SHI-Irradiated MoS2 Monolayers: A DFT Exploration
Authors: Kushwaha Aditya , Goel Neeraj , Sneha
Published: December 2024

DFT calculations indicate SHI-irradiated 2D-MoS2 monolayers (VS-MoS2 and VMo-MoS2) show strong potential for NH3 gas sensing, with VS-MoS2 exhibiting higher adsorption energy, charge transfer, and sensitivity, suggesting excellent reversibility and selective detection.
Quantum-Photonic Treatment for Nano-Refraction
Authors: Saberi Mahdi , Mahmoudi Sina , Kaatuzian Hassan , Shalchian Majid
Published: December 2024

Nano Refraction (N.R.), a distinct concept from traditional macroscopic refraction law, involves the precise estimation and manipulation of photon or electron trajectories as they traverse through transparent devices at the atomic scales. N.R. operates at the quantum level space and atto-second time scales, offering novel insights and applications in the realm of nanotechnology. In this paper we have used fifth theory of light called Quantum Photonics (Q.P.) for explaining Nano Refraction phenomenon for a typical orthorhombic crystal lattice. Simulation results based on Monte Carlo time domain modeling and simulation, follows the Snell’s Law with less than 6% error.
Predictive Analysis of Future Optical Networks: An AI approach for OPM in Next Generation Optical Networks
Authors: Parikh Jolly , Malhotra Yugnanda , Singh Rishit , Talwar Rajneesh
Published: December 2024

Optical Performance Monitoring (OPM) for Next Generation Optical Networks is explored using Machine Learning. Accuracy of 99% is reported with the proposed approach which outperforms traditional OPM methods in terms of accuracy and computational efficiency.
Design and Development of a Portable Raman Spectrometer for Early Diagnosis of Parkinson’s Disease
Authors: Garnaik Umesh Chandra , Agarwal Shilpi
Published: December 2024

Raman spectroscopy offers specific, highly sensitive, deliberate, and multiplex disease diagnosis. A portable Raman spectrometer is developed and optimized for the characterization and classification of Parkinson’s Disease by salivary Raman fingerprint of individuals.
Theoretical upper bound of truncation threshold in TSVD-based multimode fiber single-pixel imaging
Authors: Xiang Yangyang , Yang Le , Li Junhui , Lan Mingying , Ma Jianxin , Gao Li
Published: December 2024

We propose a theoretical upper limit for truncation thresholds in TSVD-based MMF-SPI, revealing that incorporating the smaller singular values which were oft-overlooked not only aligns with the proposed bound but also enhances image recovery significantly.
Time-Wavelength Interleaved Photonic Convolution Accelerator on TFLN platform
Authors: Wang Lin , Gao Yang , Zhang Lei , Yin Kun , Yu Hui
Published: December 2024

We demonstrate a time and wavelength interleaving convolutional accelerator based on TFLN platform, which demonstrates the potential for optimal computational speeds through parallelism and high-speed modulation.
AlGaAs MQW LED Light Source for Planar Integrated Circuits Optical Communications
Authors: Zakariya Abdullah J.
Published: December 2024

An AlGaAs MQW structure is selectively intermixed to produce a monolithic LED emitting individually and independently controlled wavelengths of 795, 810, 825 and 855nm integrated with flexiblè optical waveguide for planar integrated circuits optical communications.
Sensitive Refractive Index Response based on Two Types of Valley Hall Topological Edge States
Authors: Jiang Huaqing , Li Yumiao , Ying Xiaojun , Yin Kun , Yu Hui , Xiong Wanshu
Published: December 2024

A novel topological insulator cavity utilizing two types of edge states is proposed. Due to the slow light effect, its transmission spectrum is anticipated to undergo significant changes depending on the pure medium occupying the cavity region. This innovation holds promise for applications in refractive index detection within the THz band.
Suppression of Defocused Images in Digital Holographic Reconstruction Based on Image Plane Filtering Technique
Authors: Liu Pei , Zhang Yongan , Gao Zixin , Fu Ruijin , Zhang Bing
Published: December 2024

We use image plane filtering technique to filter out the focused light field in digital holographic reconstruction, which can reduce the defocusing effect of this part of the light field on reconstruction at other distances.
Photopolymer chirped grating based on holographic interferometry
Authors: Chen Hang , Yao Yongwei , Zhang Yaping , Zhang Yongan , Zhang Bing
Published: December 2024

We present a simple experiment to fabricate chirped gratings. The gratings are fabricated through interference exposure using photopolymer composed of methyl methacrylate (MMA), Irgacure784 (Ti), and Azodiisobutyronitrile (AIBN).
Trench-assisted Seven-core Graded-index Ring Fiber for OAM Modes
Authors: Wang Yuetian , Liu Yuanpeng , Geng Wenpu , Zhao Wenqian , Pan Zhongqi , Yue Yang
Published: December 2024

Trench-assisted seven-core graded-index ring fiber is proposed and designed to support 210 OAM modes in the C-band with > 99.27% purity. It features with < -90 dB crosstalk for the majority of the supported modes.
Polarization-maintaining tellurite optical fiber for mid-infrared supercontinuum generation
Authors: Takahata Keita , Nakatani Asuka , de Clermont-Gallerande Jonathan , Suzuki Takenobu , Ohishi Yasutake
Published: December 2024

To generate polarization-maintained mid-infrared supercontinuum, we have designed and fabricated tellurite oval-core optical fiber. Polarization-maintained supercontinuum light from 1660 to 2570 nm has been generated from the fabricated tellurite oval-core optical fiber.
LDLS® Powered Broad-band TLS for the Application of Diamond Inspection
Authors: Ye Xiaohua , Brates Nanu , Buch Shaival , Grube William , Zhu Huiling , Gustafson Debbie , Singh Vikram , Dube Megan , Holber William
Published: December 2024

Broad-band Tunable light source powered by LDLS® is proposed for the application of diamonds inspection. Experimental results of system performance and inspection for diamond samples, are presented.
Increasing the Precision of Transmission Spectroscopy by Optimization of Thin Film Surface Shapes
Authors: Bass John M. , Ballester Manuel , Fernández Susana M. , Katsaggelos Aggelos K. , Márquez Emilio , Willomitzer Florian
Published: December 2024

While thin film transmission spectroscopy systems can measure semiconductor optical properties, the utilized optimization-based evaluation methods often introduce variances in the results. We introduce a method of optimizing film surface shapes that reduces this uncertainty.
Controlled Generation of Poincare Bessel-Gaussian Beams
Authors: Baliyan Mansi , Nishchal Naveen K.
Published: December 2024

The study proposes a method for generating vector BG beams where scalar modes are created through cascaded dual-phase holograms superposition and then vector BG beams are generated from it through the implementation of modified Mach-Zehnder interferometer.
Multi-target detection through wavelet-modified maximum average correlation height filter
Authors: Kumar Rahul , Pal Akash , Nishchal Naveen K. , Alfalou Ayman
Published: December 2024

Many correlation filters have been reported for correlation pattern recognition and classification. In this paper, we present a system in which objects present in the target scene can automatically be detected using wavelet-modified maximum average correlation filter.
Optical image encryption using modified GS algorithm and DNA encoding
Authors: Rao Sonu Kumar , Kumar Rahul , Nishchal Naveen K. , Alfalou Ayman
Published: December 2024

Optical image encryption using modified GS algorithm and deoxyribonucleic acid (DNA) encoding is proposed. The scheme provides a novel way to encode optically encrypted data into DNA sequences and its transmission through optical vortex beam.
In-plane rotation estimation through composite filter synthesis and log-polar mapping
Authors: Pal Akash , Kumar Rahul , M. Jyothish , Nishchal Naveen K.
Published: December 2024

This paper proposes a rotation estimation method employing log-polar mapping with an optical correlator, supplemented by a composite filter to mitigate out-of-plane distortions with other benefits. Fast optical processing can lead this into numerous applications.
Quantum-Enhanced Fourier-Basis Multibeam Photon-Counting Lidar
Authors: Ting Kai-Ting , Scheck Benjamin , Feldkhun Daniel , Combes Josh , Wagner Kelvin
Published: December 2024

Photon streams backscattered by a target illuminated by a non-redundant Doppler-shifted beam array are detected and Fourier analyzed and display a quantum advantage of frequency-multiplexed multi-beam interferometry for Fourier telescopy.
Meshing Strategies and its Effect during Finite Element Method based Simulations
Authors: Singh Ritu Raj , Vardhan Shalini
Published: December 2024

This paper discusses the effect of different meshing sizes on 2D geometry. The results indicate that the desired surface have balance accuracy and computational resources for mesh elements with size ≤1/5 of the minimum dimension.
Direct Phase Modulation for Computational Fresnel Diffraction Imaging
Authors: Chang Hsuan-Ting , Dong Tai-Jyun , Chen Chien-Yu
Published: December 2024

In this paper, we propose two methods which can directly modulate the phase-only function retrieved by using Gerchberg Saxton algorithm (GSA) so that the same target image can be reconstructed with a new wavelength or at a different diffraction distance from those used in the original GSA. Both the theoretical derivation and computer simulation results are provided to verify the efficacy of the proposed methods.
Fluorescence spectroscopy of a targeted photosensitizer for photodynamic therapy of breast cancer
Authors: Domey Ernestina , Hannan Md Nafiz , Li Zihao , Baran Timothy M.
Published: December 2024

This study validated a fluorescence spectroscopy system for improved real-time monitoring of photodynamic therapy in murine breast cancer models, with a focus on precise drug delivery and tumor response to optimize treatment protocols.
Nonlinear Optical Properties of NV-doped Diamond Crystal Studied Using Z-Scan Method
Authors: Talik Wojciech , Mrózek Mariusz , Wojciechowski Adam , Dzierżȩga Krzysztof
Published: December 2024

Employing the Z-scan technique, the nonlinear properties of diamonds doped with NV centers of different concentrations were investigated. We found that presence of NV centers significantly modifies these properties.
Ultrafast Nematic Dynamics of FeSe Film
Authors: Bartenev Alexander , Theran Larry , Rua Adrian , Verbel Camilo , Rua Armando , Lysenko Sergiy
Published: December 2024

Femtosecond spectroscopy of FeSe film shows distinct transient nematic behavior below and above superconducting critical temperature. Results reveal correlations between photoinduced nematicity, quasiparticle formation, superconducting and pseudogap openings, emphasizing electronic correlations and preformed electron pairing.
Measuring Intrinsic Material Response From Nonlinear Spectroscopy With Laser Normalization
Authors: Halaoui Adam , Diederich Geoffrey M. , Schwarm Oliver , Siemens Mark
Published: December 2024

We show analytically that the intrinsic material (impulsive) response can be obtained from a nonlinear spectrum by dividing the detected signal by the laser spectrum, and demonstrate on experimentally-measured 4th-order multidimensional coherent spectra.
Bypassing Intrinsic Noise of On-Chip Integrated Frequency Combs Through Kerr-Induced Synchronization
Authors: Shandilya Pradyoth , Stone Jordan , Menyuk Curtis , Srinivasan Kartik , Moille Grégory
Published: December 2024

We demonstrate all-optical quenching of integrated frequency comb intrinsic noise through Kerr-induced synchronization (KIS). Despite using free-running lasers, KIS enables repetition rate noise below the thermo-refractive noise limit, with narrow individual comb lines across an octave.
Measuring the formation of a nonlinear vortex
Authors: Ford Patrick C. , Voitiv Andrew A. , Zhu Chuanzhou , Lusk Mark T. , Siemens Mark E.
Published: December 2024

We measure dynamics of optical vorticies with propagation through a nonlinear medium. Experiments are performed with a variable-length nonlinear fluid medium in order to observe the nonequlibrium dynamics of soliton formation.
Fiber-based seed laser for a 2 μm wavelength pumped 3 μm optical parametric chirped pulse amplifier
Authors: Larsen R. , Hettel W. , Golba G. , Morrill D. , Carlson D. , Chang P. , Wu T.-H. , Diddams S. , Kapteyn H. , Murnane M. , Hemmer M.
Published: December 2024

We report on a compact fiber-based front-end that delivers 14-nJ, 2 μm wavelength optical pulses at 100 MHz tailored to seed a high energy Ho:YLF regenerative amplifier and synchronous with broadband 2.5-3.5 μm pulses.
Non-perturbative quantum nature of high harmonic generation driven by non-classical light
Authors: Xu Yang , Choudhary Saumya , Alam Mohammad Zahirul , Boyd Robert W.
Published: December 2024

We measure the second-order correlation function of the high-harmonic emission of ZnO driven by an intense squeezed vacuum. The statistics of the super-bunched high-harmonic photons show a significant deviation from the perturbation theory prediction.
Scattering of arbitrary beams from spherical dielectric particles
Authors: Divitt Shawn , Hart Matthew B. , Sivaprakasam Vasanthi , Watnik Abbie T.
Published: December 2024

We present a refined method for calculating the scattered field of spherical dielectric particles illuminated by arbitrary optical beams, validated through experimental measurements, offering improvements over previous methodologies in light scattering analysis.
A Proposed Experiment to Measure Saturated Nonlinear Optical Susceptibilities
Authors: Levine Zachary H.
Published: December 2024

The Z-scan method for determining nonlinear optical susceptibilities can be inaccurate if the Kerr coefficient is intensity dependent. A new method, Phase Retrieval of Modes (PROM), is proposed to improve measurement accuracy.
Random Laser Effect on a Bacterial Cellulose Aerogel using Rhodamine 6G as Gain Medium
Authors: da Silva Cruz Marcelo , de Freitas Beatriz D. , Marchiori Leonardo , Pugina Roberta S. , Ferreira-Neto Elias P. , Pincheira Pablo I. R. , Gomes Anderson S. L. , Ribeiro Sidney J. L. , De Boni Leonardo
Published: December 2024

The Random Laser action was investigated on bacterial nanocellulose coated with SiO2 and TiO2 doped with RH6G. In samples of different thicknesses, a narrowing of the FWHM value and threshold lasing energy was both observed.
Generation of Non-Diffracting, Arbitrary Structured Light Sets Using a Modified HOBBIT System
Authors: Wiley Jaxon P. , Robertson Evan , Cramer Tyler , Reid Matthew , Miller J. Keith , Johnson Eric G.
Published: December 2024

Customizable, non-diffracting light modes are dynamically generated using a modified HOBBIT system. Amplitude control is realized to create the intensity distributions, allowing for highly complex structured modes that are tailorable to desired functions.
Fieldable Combs For Next-generation Quantum Applications
Authors: Spiess Alina , Smith Cole , Timmers Henry , Barnes Evan , Sodergren Bennett , Attar Andrew , Vogel Kurt , Knabe Kevin
Published: December 2024

Operation of miniaturized optical frequency combs throughout large temperature ranges and harsh vibration profiles will be presented, showing suitability for deployed applications such as optical clocks, time and frequency transfer, and dual comb spectroscopy.
Influence of the spatial coherence pump laser on PCF Supercontinuum Generation
Authors: Hurtado Camilo , Herrera Julián Orozco , E. Alzate Raúl , Torres Pedro , Herrera Rodrigo Acuna
Published: December 2024

The impact of spatial coherence on supercontinuum generation in photonic crystal fibers is experimentally investigated using a rotating ground glass diffuser within a two-lens configuration, exploring variations in spectral width and envelope shape.
Two-optical cycle 3 µm mid-IR pulses via multi-pass cell nonlinear self-compression
Authors: Seifert Gabriella , Hettel Will , Carlson Daniel , Morrill Drew , Golba Grzegorz , Larsen Rae , Murnane Margaret , Kapteyn Henry , Hemmer Michaël
Published: December 2024

We report the generation of 250 μJ, near transform-limited 2.4-cycle duration, 3 μm wavelength pulses at 1 kHz repetition rate via nonlinear self-compression in a multi-pass cell.
Reconfigurable Optical Recognition of 3 Independent Data Patterns Using Intra-Symbol Time Multiplexing and Nonlinear Wave Mixing
Authors: Minoofar Amir , Alhaddad Abdulrahman , Ko Wing , Lian Hongkun , Zhou Huibin , Karapetyan Narek , Ramakrishnan Muralekrishnan , Jiang Zile , Almaiman Ahmed , Annavaram Murali , Tur Moshe , Habif Jonathan L. , Willner Alan E.
Published: December 2024

We demonstrate multiple pattern recognitions in a 1- and 3-Gbaud QPSK inputs using intra-symbol time multiplexing and nonlinear wave mixing. The concept is experimentally validated, where the pattern-matching occurrences are represented by the top-right symbol of the output constellation for each pattern.
Optimal superresolution of two point sources via Schmidt basis
Authors: Sajia Abdelali , Zhao Guogan , Khatiwada Pawan , Benzimoun Bilal , Qian Xiao-Feng
Published: December 2024

We investigate superresolution of two general point sources using continuous rotation of the observation basis. Optimal superresolution with maximum estimation accuracy is achieved when measurements are performed in the Schmidt basis.
Frequency Conversion in OP-GaAsP for MLWIR Operation
Authors: Tassev Vladimir , Vangala Shivashankar , Linser Samuel , Brinegar Duane , Petrov Valentin
Published: December 2024

600 μm thick orientation-patterned GaAsP quasi-phase matching structures were grown by hydride vapor phase epitaxy on OP-GaAs templates. Frequency conversion in the mid IR exceeding 19 % conversion efficiency was demonstrated via second harmonic generation.
Experimental Studies of Phase Profile of Hermite-Gauss Laser Beams
Authors: Bisht Apoorva , Vyas Reeta , Singh Surendra
Published: December 2024

Experimental investigations of interference of HG laser beams with a plane wave and their diffraction by a single slit shed new light on their phase structure revealing features that had been overlooked.
Exploiting Quadratic and Cubic Nonlinearities in Developing Novel Integrated Heralded Single-Photon Sources
Authors: Almassri Mahmoud , Saleh Mohammed F.
Published: December 2024

We develop a quantum model to study and characterize a novel integrated single-photon source that is based on the interplay of two simultaneous nonlinear parametric processes. The model predicts the generation of high-pure single photons.
Exploiting Twisted Nematic SLMs for a Single-Pixel Camera with Individual Photons
Authors: Bordakevich Sebastián , Rebón Lorena , Ledesma Silvia
Published: December 2024

We explore the use of a twisted nematic liquid crystal display to represent spatially distributed complex amplitudes, in addition to the Hadamard bases required to reconstruct such distributions using a single pixel detector.
Optomechanical Interactions in Microspheres: Experimental Excitation and Characterization of Spheroidal Acoustic Mode Resonances
Authors: Julian-Barriel J. , Delgado-Pinar M. , Díez A. , Andrés M. V.
Published: December 2024

We present an experimental study of spheroidal mechanical mode resonances of a silica microsphere. These modes were generated by a pulsed laser via electrostriction and they were detected using optical whispering-gallery modes of the sphere.
Near and Mid-Infrared Open-Path Dual-Comb Spectroscopy for Urban Atmospheric Monitoring
Authors: Rhoades Ryan T. , Mead Griffin J. , Malarich Nathan A. , Sweet Nathan , Kasic James , Washburn Brian , Coddington Ian , Cossel Kevin C.
Published: December 2024

Open-path dual-comb spectroscopy in the near and mid-infrared was conducted for atmospheric monitoring campaigns over New York City and Salt Lake City, allowing for horizontal path-integrated molecular concentrations to be measured above urban environments.
Parallel optical processer based on mode multiplexing
Authors: Gao Yang , Wang Lin , Zhang Lei , Yin Kun , Yu Hui
Published: December 2024

A novel parallel optical tensor core based on mode multiplexing is designed throgh mode overlap theory and its optical convolution processing ability is experimentally demonstrated on LN platform.
A True Panoramic Camera for Smartphone Applications
Authors: Ma Jian , Wang Shenge , Li Yunwen , Giura Adrian , Miclea Chris , Goma Sergio
Published: December 2024

We present the True Panoramic Camera (TPC), which utilizes novel prism optics and image processing algorithms to seamlessly stitch together images captured by dual cameras. The TPC achieves a panoramic FOV of 140°x53° without optical distortion.
Dual-Wavelength, Polarization-Sensitive Wearable Photoplethysmographic Sensor on Diverse Skin Tones
Authors: Jakachira Rutendo , Yan Wenyuan , Burrow Joshua A. , Toussaint Kimani C.
Published: December 2024

We demonstrate a wireless, wearable photoplethysmography (PPG) sensor that incorporates polarization gating. Our results yield PPG signals with higher signal-to-noise ratios for two wavelengths, and across a range of skin tones, in comparison to traditional PPG sensors.
Inverse design of silicon nitride mode-division multiplexer
Authors: Paul Aditya , Liu Danxian , Zeng Tianyi , Bostan Egemen , Lu Jesse , Yang Kiyoul
Published: December 2024

We experimentally demonstrate an inverse-designed mode-division multiplexer on an 800-nm-thick silicon nitride platform. The multiplexer is optimized within a 14.4 × 9.6 µm2 footprint. The measured insertion loss and crosstalk are 2.11 dB and 17.1 dB, respectively.