bluuebunny/crossref_metadata_2025 huggingface dataset:
Henry II, the council of Oxford and Angevin overlordship in Leinster, 1177–85
Authors: Flanagan Marie
Published: September 2024

This paper contextualises an original, hitherto overlooked, charter of Robert Poher that sheds new light on King Henry II’s overlordship in Ireland. From its text it may be inferred that Henry infringed on the rights of Strongbow as lord of Leinster by granting Robert Poher land that was to be held by him and his heirs directly of the king and his heirs. The charter dates from around the time of a royal council held at Oxford in 1177 when, in the wake of Strongbow’s death, Henry II made a tripartite custodial division of the military services owing from Leinster. Henry’s action predates the better-known encroachments on the prerogative rights of the lord of Leinster by his son, John, following the assumption in 1185 by the latter’s personal household of responsibility for Angevin lordship in Ireland.
The Grey Zone: Physical Confinement and Emotional Freedom in La mémoire aux abois by Evelyne Trouillot
Authors: Clare Alison
Published: September 2024

Abstract: Evelyne Trouillot's 2010 novel La mémoire aux abois is one of several Haitian texts in the 21st century to grapple with what Regine Jean-Charles calls "wounds of memory," specifically in relation to the Duvalier dictatorship, spanning the years 1957-86. Based on the relationship between a young woman who becomes a caregiver in a Parisian nursing home as her immigrant status makes it difficult for her to find another job, and her patient, the matriarch of the regime, who was exiled to Paris since 1986. The novel's setting in one room of a care home allows two women both profoundly affected by the Duvalier regime to participate in a narrative governed by their memories, in which questions of trauma, vengeance, and forgiveness are examined through the lens of Haiti's unique history. This physical confinement represents their roles as the text opens, and highlights the interaction between perpetrators of mass atrocity and the "generation after". In a society where no processes of restorative justice have been successful, Trouillot offers up a literary space in which to work through the important nuances of agency and its relationship to perpetration and victimhood. Looking for new methods of resistance, healing, and recovery for the "hinge generation" born in the wake of the Duvaliers' reign, the article also examines how traditional Western paradigms of trauma studies are unsuitable in this case, and what Trouillot seems to offer as an alternative.
On the Verge : Pulsions de liberté face à la menace du confinement
Authors: Faivre Cyrielle
Published: September 2024

Abstract: Dans On the Verge , série tournée en plein confinement en 2020, la scénariste et actrice franco-américaine Julie Delpy brosse le portrait de quatre quinquagénaires toutes enfermées dans un rôle stéréotypé qui, paradoxalement, s'en libèrent alors que plane la menace du confinement imposé par la Covid-19. L'imminence du confinement est, en effet, l'occasion de transmettre un message féministe exhortant les femmes, à la manière d'Hélène Cixous, à écrire, ainsi qu'une réflexion sur le pouvoir libérateur de la sororité, idées renforcées par les références aux oeuvres de Vivaldi et de Bosch qui viennent illustrer ce phénomène chez le personnage de Justine.
Optimization of optical properties of nanocomposite films incorporating CWO and ITO nanoparticles for energy-saving window applications
Authors: Zhu Haojun , Lu Kai , Hu Lechuan , Zhou Yan , Wang Chengchao , Liu Linhua , Ma Lanxin
Published: September 2024

Cesium tungsten oxide (CWO) and indium tin oxide (ITO) nanoparticles are potential candidates for application in energy-saving windows. However, most optical studies on these nanocomposite films lack systematic evaluation and design methods. In this work, the optical properties of spherical and cylindrical CWO and ITO nanoparticles under different geometric parameters based on the Lorenz–Mie and T-matrix theories are investigated, and spectral responses of CWO-PDMS and ITO-PDMS windows are calculated by solving the radiative transfer equation (RTE) using the Monte Carlo method. By evaluating and optimizing the geometric parameters of the nanocomposite films, energy-saving windows exhibit excellent optical performance, with a visible light transmittance that meets the indoor needs of the human eye (Tlum is about 0.6), and can shield most near-infrared light, especially CWO-PDMS windows (TNIR=0.04). Finally, a building energy consumption simulation analysis based on Energy Plus is conducted in three different cities: Jinan, Hong Kong, and Singapore. The results indicate that by adjusting the geometric parameters of nanoparticles, energy-saving windows can effectively reduce energy consumption in tropical and subtropical regions. This work provides guidance for the subsequent commercialization and experimental analysis of spectral selective composite films.
Imaging detection system with full polarization modulation in highlight environments
Authors: Zhu Zhenmin , Zhang Yuyang , Li Xuefei , Tang Liang , Wang Xinguan , Xiong Sipeng , Xie Dongdong
Published: September 2024

This paper proposes a system for modulating and detecting the polarization state of reflected light in a highlight environment. The system can perform light intensity modulation, polarization state modulation, and conversion of any form of polarized light, thereby using the polarization-related principle to suppress or even eliminate the highlighted area of reflected light in imaging. Finally, by combining principal component analysis (PCA) image fusion technology, the imaging effect is greatly improved, the image texture details are increased, the gray value distribution of pixels is changed, and adjustable high-quality imaging detection is achieved. In addition, the theory of full polarization state preparation proposed in this article can also be used to realize the polarization and transformation of various light sources, and change the polarized parameters of the incident light source and make it an ideal light source. Therefore, the method proposed in this paper can not only take into account the modulation and transformation of polarization states but also realize the modulation of light intensity. It also realizes the optimization of imaging quality, which can achieve imaging detection in most complex environments with only one system.
Wideband RF Analysis with Rayleigh Backscattering
Authors: Murray Matthew J. , Murray Joseph B. , Schermer Ross T. , McKinney Jason D. , Redding Brandon
Published: September 2024

We present an RF spectrum analyzer capable of monitoring a 15GHz band with MHz-level resolution and 385kHz update rate. We use Rayleigh-backscattering in single-mode fiber to produce frequency-dependent speckle patterns to recover the RF spectrum.
Sub-micron Ultracold Neutron Position Resolution using Chip Based Optical Neural Network
Authors: Lin S. , Zhu H. , Clayton S. , Morris C. L. , Tang Z. , Wang Z. , Chen R. T.
Published: September 2024

High spatial resolution of ultracold neutron (UCN) measurements of 1 µm or less is highly desired for many UCN experiments. Optical neural networks are potential radiation-hard hardware platforms for real-time, energy-efficient analysis of UCN hits.(LA-UR-23-33103)
Scalable Optical Neural Network Based on Parametric Process
Authors: Dong Xin , Zhou Yi , Wen Xiaoxiao , Wong Kenneth Kin-Yip
Published: September 2024

An optical neural network based on parametric process is demonstrated, and DFT is applied to realize a computation frame rate of up to 40MHz. The MNIST-digit dataset classification accuracy is improved to 87.7%.
Achromatic imaging systems with flat lenses enabled by deep learning
Authors: Maman Roy , Mualem Eitan , Mazurski Noa , Engelberg Jacob , Levy Uriel
Published: September 2024

We experimentally demonstrate an achromatic imaging system by the fusion of chromatically aberrated flat lenses with deep learning. We obtained high-quality images captured with a large field-of-view under normal outdoor light illumination conditions.
Towards Spatially Resolved, Single-Ended Tunable Diode Laser Absorption Spectroscopy in Particle-Laden Flows
Authors: Hansemann Clemens , Bonarens Matthias , Daun Kyle , Emmert Johannes , Wagner Steven
Published: September 2024

This study introduces a novel technique for single-ended measurements of the properties of inhomogeneous particle-laden gases by combining tunable-diode laser absorption spectroscopy with optical ranging. The technique and evaluation strategy are demonstrated with a numerical study.
THz Absorption Spectroscopy of Atoms in Plasmas
Authors: Wubs Jente R. , Macherius Uwe , Nave Andy S. C. , Invernizzi Laurent , Gazeli Kristaq , Lombardi Guillaume , Lü Xiang , Schrottke Lutz , Weltmann Klaus-Dieter , van Helden Jean-Pierre H.
Published: September 2024

Terahertz absorption spectroscopy with quantum cascade lasers has recently been developed as a new diagnostic technique for investigating ground state atomic oxygen densities in plasmas. We compare the results with well-known diagnostics TALIF and CRDS.
Sample Rate-Limited Distance and Velocity Characterizations in a Silicon Platform
Authors: Liao Ting-Qing , Chang Ting-Chia , Hsu Shih-Hsiang
Published: September 2024

Direct Hilbert-transform resampling on silicon-based interferometers could correct optical-source phase errors to characterize distances and velocities precisely through frequency-modulated continuous waves. The half-of-one-mega samples per second in data acquisition limit the range to 876.86 cm.
On the effect of spatial misalignment analysis on spatial light modulator-based spatial multiplexing in multimode fibres
Authors: Htay Zun , Barbosa Fabio A. , Ferreira Filipe M.
Published: September 2024

We investigate the performance of mode selectivity telescopic free space optical system with spatial misalignment and the effect of misfocus in utilized lenses in the system. The alignment requirements for minimal mode crosstalk are quantified.
Smart PON monitoring scheme based on FBG-array encoder
Authors: Liu Yibo , Xiao Xiangpeng , Wang Ruisi , Zhao Weiliang , Xu Wangyang , Shi Zhengxuan , Sun Qizhen , Cheng Mengfan , Yang Qi , Yan Zhijun
Published: September 2024

We proposed and demonstrated a 4ⅹ4 FBG-array encoder to achieve 16-branch PON smart monitoring.
Analysis of Acoustic Sensing via Optical Fiber Cables
Authors: Dejdar Petr , Mokrý Ondřej , Čížek Martin , Rajmic Pavel , Munster Petr , Schimmel Jiri , Pravdova Lenka , Horvath Tomas , Cip Ondrej
Published: September 2024

We report a measurement of optical fiber cables sensitivity to acoustic waves. An anechoic room was utilized for the measurement. Several objective parameters were evaluated w.r.t. various types of optical fiber cables.
Optical fiber ferrule-top suspended optomechanical microresonators for acceleration sensing
Authors: Wang Peng , Li Taige , Zhang A. Ping
Published: September 2024

A micrometer-scale optomechanical resonator suspended on optical fiber-ferrule end-face is designed for high-sensitivity acceleration sensing. An optical 3D micro-printing technology is applied to fabricate the whole structure, and its frequency response is measured in experiments.
Fiber Optic Hydrophone Towed Cable Shape Perception Based on Optical Frequency Domain Reflectometry
Authors: Ai Ke , Lv Yuejuan , Chen Junfeng , Fan Cunzheng , Li Hao , Yan Zhijun , Sun Qizhen
Published: September 2024

A fiber optic hydrophone towed cable shape perception scheme based on OFDR is proposed and demonstrated. The maximum reconstruction error is 1.25% for the 5 m towed cable with a bending radius of 2.5 m.
Design of a zero-coma image spectrometer with ultra-high resolution by using a multiple-grating-integrated module
Authors: Li C. , Tu H. T. , Jiang A. Q. , Chen J. K. , Xia G. X. , Yoshie O. , Lee Y. P. , Zhao H. B. , Zheng Y. X. , Wang S. Y. , Yang Y. M. , Lynch D. W. , Chen L. Y.
Published: September 2024

A zero-coma image spectrometer with ultra-high spectral resolution in the entire wavelength region was designed and demonstrated by using a multiple-grating-integrated module. Results show the unique merit of the spectrometer to be able for a wide range of spectral sensing and measurement applications.
Vector magnetic field sensor based on etched seven-core fiber helical long-period grating with magnetic fluid
Authors: Chen Siyu , Jiang Chen , Zhao Yuehe , Ma Yuehui , Mou Chengbo , Liu Yunqi
Published: September 2024

We demonstrated a vector magnetic field sensor utilizing an etched seven-core fiber helical long-period grating, showcasing a high-sensitivity response of up to 10.8 nm/mT within magnetic field intensity measurement ranges from 0 to 20.7 mT.
Frequency-agile Hybrid Integrated Laser at Sub-micron Spectral Range for Coherent Sensing and Quantum Applications
Authors: Shadymov Vladimir , Bancora Andrea , Siddharth Anat , Attanasio Alaina , Wang Rui Ning , Riemensberger Johann , Tian Hao , Bhave Sunil , Voloshin Andrey , Kippenberg Tobias
Published: September 2024

We demonstrate a hybrid integrated low-noise laser based on a 900 nm laser diode self-injection locked to a microresonator with MEMS actuators exhibiting a frequency actuation bandwidth >10 MHz and a tuning efficiency >30 MHz/V.
Integrated Femtosecond Pulse Amplifier
Authors: Gaafar Mahmoud A. , Ludwig Markus , Wang Kai , Wildi Thibault , Voumard Thibault , Sinobad Milan , Lorenzen Jan , Francis Henry , Zhang Shuangyou , Bi Toby , Del’Haye Pascal , Geiselmann Michael , Körtner Franz X. , Garcia-Blanco Sonia M. , Singh Neetesh , Herr Tobias
Published: September 2024

We demonstrate for the first-time f emtosecond p ulse a mplification in a CMOS-compatible photonic chip. We report >50-fold amplification of 1 GHz-repetitionrate chirped femtosecond pulses to 800 W of on-chip peak power with 116 fs pulse duration.
Ultra-Compact Computed Tomography Snapshot Spectral Light-Field Imaging Based on Parallelized Metasurfaces
Authors: Ding Kaiyang , Wang Ming , Shi Zhenxiang , An Taize , Liang Xiaojun , Ni Kai , Zhou Qian , Wang Xiaohao
Published: September 2024

We present a parallelized metasurfaces approach for ultra-compact computed tomography snapshot spectral light-field imaging in place of conventional bulky or time-sensitive systems with a single shot to acquire four-dimensional spatial-spectral and depth data.
RF Crosstalk Suppression in Parallel Silicon Photonic Mach-Zehnder Modulators
Authors: Mohammadi Abdolkhalegh , Rusch Leslie A. , Shi Wei
Published: September 2024

We use floating shield strips to suppress crosstalk in parallel traveling-wave Mach-Zehnder modulators (TW-MZM). We demonstrate an increase of nearly 50% in shoreline bandwidth density and an improved RF crosstalk lower than -25dB at 60GHz.
Terahertz Time-Domain Imaging for Radiotherapy Treatment Monitoring in Pancreatic Ductal Adenocarcinoma
Authors: Chakraborty Debamitra , Mills Bradley N. , Cheng Jing , Komissarov Ivan , Gerber Scott , Sobolewski Roman
Published: September 2024

Terahertz time-domain imaging was performed of stereotactic body radiotherapy-treated murine pancreatic ductal adenocarcinoma (PDAC) with a high spatial resolution. To generate 2D maps of the tissue samples, the refractive index and absorption coefficient were used as imaging markers extracted with the maximum a-posteriori probability (MAP) estimation algorithm. The results were then compared with the terahertz maps of untreated murine PDAC tissue samples and demonstrated that terahertz imaging can probe physical changes with high sensitivity in the tissue post treatment.
Characterization of Binary Liposome with Raman Spectroscopy for Targeted Nanomedicine
Authors: Veluthandath Aneesh V. , Ahmed Waseem , Dushianthan Ahilanandan , Postle Anthony D. , Wilkinson James S. , Murugan Ganapathy Senthil
Published: September 2024

Liposomes are versatile nanocarriers vital for targeted drug delivery in nanomedicine. Understanding their composition is crucial for precise delivery and assessing carrier quality. Our study demonstrates Raman spectroscopy's effectiveness in assessing binary liposome lipid composition.
Fiber-coupled, quantum cascade laser-based, open-path airborne sensor for atmospheric ammonia measurements
Authors: Yi Hongming , Choi Yunseo , Li Nathan , Moore Daniel P. , Sevostianov Vladislav I. , Tao Lei , Pan Da , Boyd Ryan , McSpiritt James , Wendt Lars , Zondlo Mark A.
Published: September 2024

A hollow core fiber was coupled to a c-mount, quantum cascade laser for open-path detection of atmospheric ammonia onboard the NASA DC-8 aircraft. In-flight measurements demonstrated sub-ppbv precision for NH3 at 1s in the troposphere.
Loss-tolerant all-optical distributed sensing
Authors: Nehra Rajveer , Oh Changhun , Jiang Liang , Marandi Alireza
Published: September 2024

We investigate a resource-efficient distributed quantum sensing (DQS) scheme using phase-sensitive optical parametric amplifiers and linear optics, achieving sensitivity levels close to the optimal limit determined by the quantum Fisher information of the resource state.
Unsupervised Source Separation Technique for Multi-speciation Using a Single Laser: Quantifying Hydrocarbons without their Reference Spectra
Authors: Sy Mohamed , Al Ibrahim Emad , Elkhazraji Ali , Farooq Aamir
Published: September 2024

We present an autoencoder that can infer molar fractions and reference spectra based solely on mixture spectra. The model is demonstrated to work for C1-C3 hydrocarbon gas mixtures measured using an interband cascade laser. This method can ease the dependence of spectroscopic sensing on reference spectra.
Laser phase lock for trapped ion quantum computing
Authors: Bohn Matthew J. , Tiemann Bruce
Published: September 2024

An effiicient laser phase lock at a heterodyne frequency of 12.643 GHz is described and it's performance measured as a two qubit gate laser for Quantinuum's trapped ion quantum computer.
High-Resolution Computed Tomography with Scattered X-ray Radiation and a Single Pixel Detector
Authors: Ben Yehuda A. , Sefi O. , Klein Y. , Shukrun R. H , Schwartz H. , Cohen E. , Shwartz S.
Published: September 2024

We experimentally demonstrate a technique for high-resolution computed tomography (CT) that measures the scattered x-ray radiation by utilizing a ghost imaging approach. Our research can improve image contrast while minimizing radiation exposure for patients.
Spectral Broadening of Femtosecond Cr:ZnS MOPA Oscillation in InP
Authors: Danilin R , Fedorov V. , Martyshkin D. , Mirov S.
Published: September 2024

We present a Cr:ZnS Kerr-lens mode-locked master oscillator-single-pass amplifier scheme for supercontinuum generation in nonlinear materials. The amplified output radiation was broadened in bulk InP over the 1800-3000 spectral range at a −30 dB level.
Plasmonic Crystal Cavity in Metal-Insulator-Metal for Fiber-Tip Label-Free Biosensing
Authors: He Chenjia , Sun Xiaqing , Zhong Hao , Liu Qingwei , Chen Shengfu , Yang Tian
Published: September 2024

To achieve a flat and uniform sensing surface for fiber-tip surface plasmon resonance devices, we have developed a plasmonic crystal cavity in metal-insulator-metal structure. Biotinylated protein binding has been detected at down to 30 fM.
Photonic Integrated Circuits at MWIR and Green Wavelengths for Biomedical Applications
Authors: Nikor Sk Shafaat Saud , Sumon Md Saiful Islam , Faruque Imad I. , Dwivedi Sarvagya , Arafin Shamsul
Published: September 2024

Light at mid-wave infrared- as well as visible-wavelengths are widely used in biophotonic applications with the promise of much improved healthcare. This talk will review on recent progress made at OSU towards developing photonic integrated circuit technologies at these wavelengths.
A Synchronized LiDAR-OWC Integrated System for Multiuser Indoor Scenario Using A Shared Light Path
Authors: Ye Ziming , Liu Lihang , Hao Yi , Han Yaqi , Wu Lican , Zhu Qingyang , Xia Annan , Fu H. Y.
Published: September 2024

We present an integrated LiDAR and OWC system for indoor IoT applications. Experimental results on different channels show Gbps-level communication performance while maintaining a millimeter-scale sensing capability simultaneously.
4D FMCW LiDAR System with Compact Spectral-Scanning Structure and High Angular Resolution
Authors: Zhu Qingyang , Hao Yi , Wu Lican , Han Yaqi , Ye Ziming , Xia Annan , Fu H. Y.
Published: September 2024

We develop a spectral-scanning FMCW LiDAR system achieving simultaneous 3D imaging and velocity measurement using a grating-rotator set. A FoV of 16.2º×4.73ºand an angular resolution of 0.10º×0.059º are demonstrated.
Integrated lithium tantalate electro-optic modulator
Authors: Wang Chengli , Zhang Junyin , Churaev Mikhail , Lihachev Grigory , Kippenberg Tobias
Published: September 2024

We demonstrate an integrated lithium tantalate electro-optic Mach-Zehnder modulator exhibiting the voltage-length product of 3.7 V·cm and bandwidth of at least 67 GHz.
Photothermal gas detection on an integrated photonic waveguide
Authors: Yan Yue , Duan Kun , Feng Hanke , Wang Cheng , Ren Wei
Published: September 2024

We report on-chip photothermal gas sensing on a nanophotonic lithium niobate waveguide with meandering length of 9 cm. This approach achieves a carbon dioxide detection limit of 900 ppm at wavelength of 2 μm.
Experimental Demonstration of an On-Chip Coherent Beam Combiner Based on MMI
Authors: Jiao Suping , Qiu Jifang , Song Jingwei , Xu Kejia , He Yijun , Yuan Guangsong , Guo Wenjie , Li Yan , Wu Jian
Published: September 2024

We experimentally demonstrate an on-chip coherent combiner utilizing the COBYLA algorithm, resulting in a 3.15 dB enhancement in synthesis power. A 36-Gbit/s quadrature phase-shift-keying communication link carried by the combiner is demonstrated.
Floating-point photonic solver using Newton’s method
Authors: Klein Andrew B. , Zhu Zheyuan , Li Guifang , Pang Shuo S.
Published: September 2024

We present a method for configurable, signed, floating-point encoding and multiplication on limited precision photonic primitives, demonstrating Newton’s method with improved accuracy and expanding the dynamic range of the photonic solver by over 200×.
Optical Input – Optical Output Logic Gates Using Ring Modulator and Photovoltaic Diodes
Authors: Idres Samer , Habif Jonathan , Hashemi Hossein
Published: September 2024

We experimentally demonstrate optical input – optical output logic gates using ring modulators and bias-less stacked photodiodes operating in the photovoltaic mode. The proposed structure is implemented in a commercial silicon photonics foundry.
Second-order Nonlinear Optics of Substituted Dolmen-type Au Nanostructure
Authors: Sugita A. , Muroi K. , Kamiya M.
Published: September 2024

This paper presents LSP-enhanced SHG behavior of substituted dolmen-type Au nanostructure. By partially replacing the centro-symmetric nanorod with a noncentro-symmetric nanoprism, SHG efficiency was not only increased but giant circular dichroic SHG behavior was obtained.
High-speed Classification by Optical Information Processing Based on Diffractive Deep Neural Network
Authors: Miura Shun , Otake Mamoru , Kusaka Hiroyuki , Kashiwagi Masahiro
Published: September 2024

High-speed processing of sub-millimeter-particle images by optical neural network is demonstrated. The apparatus processes light directly from samples flowing across the laser. >98% accuracy was achieved for the classification of different sizes of particles.
Multiparameter Optical Performance Monitoring of PAM Channels Using Asynchronous Amplitude Histogram
Authors: Li Si-Ao , Yang Jian , Liu Yuanpeng , Zhao Wenqian , Zhang Yiwen , Zhang Runzhou , Pan Zhongqi , Yue Yang
Published: September 2024

PAM signal performance monitoring is demonstrated using GBDT method combined with AAH, achieving a 97.54% accuracy for jointly monitoring 4 parameters, and by using moving average preprocessing, the accuracy of dispersion monitoring is above 93%.
Random laser emission at 1348 nm from Nd:YVO4 crystal powder
Authors: Dipold Jessica , Wetter Niklaus U.
Published: September 2024

Nd:YVO4 powder random lasers have shown high efficiency in 1064 nm emission with 806 nm excitation. Here, by using 585 nm excitation, we show laser emission for 1348 nm for the first time.
The Transmission of Moving Optical Cavities
Authors: Pyvovar Nazar , Duan Lingze
Published: September 2024

We report a theoretical analysis of the transmission properties of an optical cavity, which moves uniformly against the observer. Velocity dependence of the amplitude and phase is examined and application prospects are discussed.
Broadband and high-resolution characterization of microcombs based on coherent detection
Authors: Tetsumoto Tomohiro , Shoda Ayaka , Furusawa Kentaro , Imai Kazuhiro , Kourogi Motonobu , Sekine Norihiko
Published: September 2024

We report a fast characterization method based on coherent heterodyne detection to simultaneously characterize various properties of microresonator frequency combs, such as optical spectrum, comb-resonance detuning, and resonator dispersion.
Speed Invariant Opto-atomic Spatio-temporal Holographic Correlator for Automatic Event Recognition Using the Mellin Transform
Authors: Shen Xi , Gamboa Julian , Hamidfar Tabassom , Mitu Shamima Akter , Shahriar Selim M.
Published: September 2024

We report on an opto-atomic spatio-temporal holographic event recognition system that incorporates a two-step method based on the Mellin transform to achieve invariance to temporal shifts and speed variations, allowing for more diverse recognition tasks.
Inverse Designed Photonic Crystal Cavities Coupled to Colloidal Quantum Dots
Authors: Vij Neelesh Kumar , Purkayastha Purbita , Gallagher Shaun , Ginger David , Waks Edo
Published: September 2024

We inverse design L3 photonic crystal cavity in Silicon Nitride to achieve high quality factor, low mode volume and high collection efficiencies. We fabricate our device and integrate them with colloidal perovskite quantum dots.
Integrated spatial-temporal speckle spectrometer
Authors: Xu Shibo , Zhang Jiahui , Cheng Junwei , Dong Jianji
Published: September 2024

We propose and demonstrate an integrated spatial-temporal speckle spectrometer. By constructing a highly uncorrelated transmission matrix, we accurately reconstructed a narrow band peak of 0.12 nm and a broadband spectrum covering the entire C-band.
Compact Trident Edge Coupler on Thin Film Lithium Niobate for Octave-Spanning Nonlinear Processes
Authors: Gerguis John O. , Chang Gregory , Chen Ruihan , Qi Minghao
Published: September 2024

We present a trident edge coupler design for thin-film LNOI achieving <1.4 dB coupling loss at both edges of an octave-spanning spectrum (1~2 µm) with >10 dB suppression ratio of the middle wavelength (1.5 µm).
Three-Terminal Thyristor Random Access Memory Realized on a Monolithic Silicon CMOS Photonic Platform
Authors: Kwon Ikhyeon , Kim Hyangwoo , Baek Chang-Ki , Ben Yoo S. J.
Published: September 2024

We demonstrate Three-Terminal Thyristor Random Access Memory (3T TRAM) on a monolithic silicon-CMOS-photonic platform. The gate contact plays an important role in controlling dynamic memory characteristics and optimized design can lead to non-volatile characteristics.
Thin film chalcogenides and optical design for mid-infrared sensing applications
Authors: El-Kholy Ibrahim , Al-Alexis  , Khan Amir
Published: September 2024

Constituent elements of Ge-Se-S glasses were chosen with different compositions such as Ge2Se8, Ge2S8, Se2S8, and GeSe2S2 to study their optical properties for UV, visible, and Mid-IR range using different optical tools like UV-Vis, FTIR, and Raman spectroscopy for mid-infrared thin film applications.
Continuous-Wave 247.5-nm UV Generation via Intracavity Frequency Doubling of Pr:BaY2F8 Laser
Authors: Smolski V. , Jacobson A. , Welford D. , Kaneda Y. , Waterbury R.
Published: September 2024

We report, to best of our knowledge, the first ultraviolet laser at 247.5 nm by intracavity frequency-doubling of a diode-pumped Pr3+-doped BaY2F8 (BYF) laser. Output power of 14 mW in UV was demonstrated.
SNAP Microresonators Created by Electric Arc Discharge
Authors: Liu Wenxin , Shu Xuewen
Published: September 2024

A novel approach is introduced for the fabrication of surface nanoscale axial photonics (SNAP) microresonators using arc discharge technique. Several Gaussian SNAP microresonators are fabricated, and their angstrom-level fabrication accuracy is meticulously confirmed.
Coherence-based Hybrid Simulation Model of Physical and Geometric Optics for Grating-based Lightguide in Augmented Reality Display
Authors: Xu Chenlu , Zhao Yuxuan , Zeng Lijiang
Published: September 2024

Coherence-based hybrid simulation model for grating-based lightguide used in AR is proposed. Coherence of overlapping geometric rays during ray tracing is discussed. Our simulation result is closer to experiment result than incoherence-based model.
Demonstration of Photoelectrochemical Photodetector with High Responsivity and Large Bandwidth for Optical Wireless Communication
Authors: Li Liuan , Fang Shi , Chen Wei , Kang Yang , Liu Xin , Luo Yuanmin , Memon Muhammad Hunain , Sun Haiding
Published: September 2024

Response speed and responsivity are crucial for photodetectors. GaN nanowires were used to construct fast-response photoelectrochemical photodetectors. Iridium-oxide decoration improved the responsivity and response speed with a demonstration of large-bandwidth optical communication.
Demonstration of Quantum Generative Adversarial Network with a Silicon Photonic Chip
Authors: Ma Haoran , Ye Liao , Ruan Fanjie , Li Maohui , Zhao Zichao , Wang Yuehai , Yang Jianyi
Published: September 2024

We demonstrated a hybrid quantum-classical generative adversarial network (GAN) with a silicon photonic chip capable of generating arbitrary 2-qubit states. The chip was successfully applied for classical distribution loading and MNIST image generation.
Scientific Computing with Diffractive Optical Neural Networks
Authors: Chen Ruiyang , Tang Yingheng , Ma Jianzhu , Gao Weilu
Published: September 2024

We deploy reconfigurable diffractive optical neural networks for multiple scientific computing applications, including guiding quantum material synthesis, predicting properties of materials, biomolecules, and nanophotonic devices, and dynamic stabilization of an inverted pendulum with reinforcement learning.
Structurization of Full Surface Emissive MAPbBr3 Crystals: from Fluorescent Tags to Resonant Nanostructures
Authors: Kowal Dominik , Mahato Somnath , Rola Krzysztof , Czyż Krzysztof , Birowosuto Muhammad Danang
Published: September 2024

MAPbBr3 perovskites are known for bright green surface emission. We utilize the micromachining and nanofabrication tools to alter the photoluminescence properties of this perovskite and create fluorescent patterns and diffraction or resonant nanostructures.
Controlled Fano Lineshape in Coupled Cavity-Waveguide Structure Under Wafer-scale Manufacturing
Authors: Sun Fujun , Yang Gang , Zhang Peng , Han Jianghao , Hu Yanpeng , Gao Jianfeng , Li Junjie , He Xiaobin , Li Zhihua , Luo Jun , Wang Wenwu , Yang Yan
Published: September 2024

Experimental results of controlled Fano lineshapes in coupled nanobeam cavity-waveguide structure by tuning the defect waveguide are reported. The devices are fabricated on a standard full-process CMOS passive multi-project-wafer run with 180 nm technology node. This work provides potential for advanced and scalable integrated photonics applications.
Experimental demonstration of a photonic ADC with high-dynamic-range at a low oversampling ratio
Authors: Li Qiuyan , Qiu Jifang , Wu Yuepeng , He Yijun , Zhang Bowen , Li Yan , Wu Jian
Published: September 2024

We propose a dual-wavelength scheme for a high-dynamic-range photonic ADC without necessitating a high oversampling rate. Utilizing a CRT-based algorithm, a 1GHz signal at an oversampling ratio of 5 was experimentally reconstructed.
Dielectric laser accelerators: photonic control, electron compression, and quantum sensing
Authors: Zhao Zhexin , Black Dylan S. , Sun Xiao-Qi , Hughes Tyler W. , Leedle Kenneth J. , Tan Si , England R. Joel , Solgaard Olav , Byer Robert L. , Fan Shanhui , Hommelhoff Peter
Published: September 2024

We discuss how photonic control addresses key challenges of dielectric laser accelerators (DLAs) and propose applications using DLAs, i.e., electron pulse compression and quantum sensing of two-level systems.
Ultrafast interband and intraband excitations interrogated by femtosecond surface plasmon wavepackets
Authors: Lovász Béla , Sándor Péter , Hanus Václav , Budai Judit , Pápa Zsuzsanna , Dombi Péter
Published: September 2024

Using a surface-selective, ultrafast probing method based on surface-plasmons, we identified that light-reflection-induced hot-electron excitation can serve as an ultrafast plasmonic gate with recovery time down to 100 fs and up to 20 % contrast.
CPA-Ready Femtosecond Oscillator at 1 MHz
Authors: Boulanger Vincent , Olivier Michel , Chevrette Alexandre , Trépanier François , Piché Michel
Published: September 2024

We present a versatile all-fiber oscillator generating stretched pulses (> 100 ps) at a repetition rate of 1 MHz to seed compact CPA systems at 1030 nm. It generates 60-nJ pulses compressible to sub-300 fs.
Subspace Analysis of Noise Trade-off in the Design of Resonant Electro-Optic Combs
Authors: Heebøll H. , Riebesehl J. , Razumov A. , Sekhar P. , Diddams S. , Da Ros F. , Galili M. , Zibar D.
Published: September 2024

We identify an additional phase noise component in resonant electro-optic combs. To minimize its contribution, our results suggest a trade-off between modulation index, cavity finesse and free spectral range.
Phase Noise Characterization of Cr:ZnS Frequency Comb using Subspace Tracking
Authors: Razumov A. , Vasilyev S. , Riebesehl J. , Heebøll H. , Da Ros F. , Zibar D.
Published: September 2024

Phase noise characterization of the frequency comb based on Cr:ZnS modelocked laser is demonstrated using subspace tracking, allowing decomposition of phase noise sources. We measure the corresponding phase noise power spectral densities and scaling with comb-line number.
Spectral and Spatial Self-Transformations of Terawatt Laser Beams in Low-Pressure Gases
Authors: Giakas A. , Edwards M.R. , Fasano N.M. , Tigges-Green I. , Bennett T. , Mikhailova J.M.
Published: September 2024

Spectral broadening of 25-fs multi-terawatt laser pulses has been achieved in low-pressure atmospheric gases without significant loss of spatial coherence in the laser beam by femtosecond laser filamentation.
Adjustable polymer dispersed liquid crystal grating
Authors: Huang Hsuan-Han , Li Yu-Jen , Huang Chiu-Chang , Kuan Chieh-Hsiung
Published: September 2024

The double-period grating structure is integrated in a polymer dispersed liquid crystal (PDLC) device and guides the arrangement of PDLC droplets. The grating period is changed by electronic control.
Study on Thermal Effect of Metasurface for Temperature-Insensitive Hybrid Optical System
Authors: Lee Dongyoung , Nam Yujin , Seo Dongjae , Ryu Taesik , Park Sungchan , Kyoung Jisoo
Published: September 2024

We analyzed the thermal effects of metasurfaces to design temperature-insensitive hybrid optical systems. We found that the deformation of meta-atom (nano-structure) or the change of the index is negligible but the substrate expansion is important.
A Prototypical Metasurface Dual-Band Radar Antenna Design
Authors: Louisos D. , Hecht K. , Matilde E. , Touma J. , Hofmann T. , Mencagli M. , Willis A.
Published: September 2024

A multi-disciplinary design of a modulated metasurface antenna is proposed that incorporates realistic material properties and fabrication constraints for radar applications at two common use frequencies: 10 GHz and 100 GHz.
Scaling of the Mesoscopic Conductance
Authors: Joshi Krishna , Kurtz Israel , Genack Azriel Z.
Published: September 2024

Dips are observed in the microwave transmittance due to the vanishing of transmission in the lowest transmission eigenchannel, which pulls down transmission in all other eigenchannels. Ohm’s law is approached as sample dimensions increase.
Diodes-pumped femtosecond Ti:sapphire lasers for two-photon microscopy
Authors: Song Dong Hoon , Kim Hyungwoo , Seo Hong-Seok
Published: September 2024

We report compact and low-cost two femtosecond self-starting mode-locked Ti:sapphire lasers operating at different repetition rates of 76 MHz and 250 MHz, respectively, based on spectrally combined diodes-pumped sources.
Numerical investigation of absorption mechanisms in black aluminum films
Authors: Repän Taavi , More-Chevalier Joris , Martan Jiří , Hruška Petr , Novotný Michal , Honnerová Petra , Kejzlar Jan , Poupon Morgane , Prokop Dejan , Fitl Přemysl , Lančok Ján , Jaaniso Raivo
Published: September 2024

Using magnetron sputtering, we produced black aluminum samples with varying surface morphology. Here, we developed a finite-element model to reproduce and gain additional insight into experimentally measured optical properties.
Passive Waveguide Fabrication through Femtosecond Laser irradiation in Ag-doped GeO2–PbO glasses for photonic applications
Authors: Fernandes Thiago Vecchi , Bordon Camila D. S. , Wetter Niklaus U. , de Rossi Wagner , Kassab Luciana R. P.
Published: September 2024

We present the fabrication of dual waveguides in Ge2O-PbO glasses doped with silver nanoparticles using direct femtosecond laser inscription. The study involves results of beam quality, propagation loss, and polarization of the dual waveguides.
Light-Assisted Drying (LAD) for the Stabilization of Biologics at Ambient Temperature
Authors: Tsegaye Anteneh A. , Furr Daniel P. , Olson Gunnar , Trammell Susan R.
Published: September 2024

Light-assisted drying (LAD) is a new technique that uses near-infrared (1064 nm) laser light to selectively heat water, quickly dehydrating samples and forming an amorphous trehalose preservation matrix that can be stored at supra-zero temperatures.
Ghost Imaging of a Biological Object with X-ray-based Speckle Illumination
Authors: Karmakar Sanjit , Goodrich Justin , Fluerasu Andrei , Yu Kwangmin , Vià Cinzia Da , Nomerotski Andrei , Matekole Elisha Siddiqui , Berman Lonny , Paape Timothy , McSweeney Sean
Published: September 2024

This article reports an experimental demonstration of ghost imaging of a biological object using X-ray-based speckle illumination. This experimental result shows the direction to observe the internal structure of biological objects with reduced dose.
Realtime Laser Beam Steering and Calibration Method for Coherent Biomedical Distance and Motion Sensing
Authors: Schmidt Marius , Sadeghi Misha , Rahimi Farnaz , Eskofier Bjoern M. , Buglagil Arda , Schmauss Bernhard , Carlowitz Christian
Published: September 2024

This paper presents a depth camera based 3D position tracking and calibration method for realtime millimeter-accuracy galvanometer laser beam steering that enables high sensitivity coherent optical distance and movement sensing for biomedical applications.
Deep Learning Enhanced Ghost Holography: Optimizing CNNs for Robust Image Recognition in Noisy Environments
Authors: Tabakhi Shima , Mohammadzadeh Mohammad , Famouri Dina , Sayeh Mohammad R.
Published: September 2024

In this study, we present a deep learning-based ghost holography approach to recover occlusion-obscured image details, using a neural network trained on varied datasets, markedly enhancing image reconstruction in complex imaging scenarios.
Tight focusing of radially-azimuthally polarized higher order Poincaré sphere beams
Authors: Pal Sushanta Kumar , Rusch Leslie A.
Published: September 2024

We examine tight focusing of radially-azimuthally (RPAP) polarized higher-order Poincaré sphere (HOPS) beams. These optical fields can be used to achieve equal strengths of longitudinal and transverse components, with good power at the focal plane.
A Stochastic optimization approach to laser speckle contrast imaging for a better estimation of blood flow
Authors: K Murali , Sarkar Soumyajit , Das Susweta , Varma Hari M
Published: September 2024

We have recently proposed the use of stochastic differential equations to simulate speckle intensity with pre-defined probability density function and auto-correlation for applications in imaging tissue blood flow. Here, we extend the above-mentioned model to compute better estimates of blood flow from speckle measurements using a stochastic optimization approach. We validate the method using simulations, tissue-mimicking flow phantoms, and in − vivo human experiments.
A Giant interferometric fiber optic gyroscope with Low Self-Noise for Geophysical Rotation Sensing
Authors: Huang Huimin , Cao Yujia , Zhu Lanxin , Chen Yanjun , Wang Wenbo , Shi Fangshuo , Li Zhengbin
Published: September 2024

A low Self-noise giant interferometric fiber optic gyroscope system has been built for geophysical rotation sensing. The gyroscope 24-hour stability test shows that sensitivity can reach 1.65 × 10-9 rad/s/√Hz.
Narrow Linewidth DBR Laser Diodes Based on Twin-Waveguide Epitaxial Structure
Authors: Lu Qianru , Zhang Yuanhao , Liu Can , Li Guojiong , Xia Juan , Lu Qiaoyin , Guo Weihua
Published: September 2024

Narrow linewidth DBR lasers based on the twin-waveguide epitaxial structure are demonstrated. The fabricated 8µm-wide ridge waveguide DBR laser exhibited the stable single mode operation with the linewidth narrower than 50kHz and SMSR over 55dB.
A Three-Active-Section Directly Modulated Laser with Enhanced Modulation Bandwidth
Authors: Qi Hefei , Li Shaobo , He Jiantao , Yu Wenqi , Ding Yuedi , Ma Xiang
Published: September 2024

We demonstrate a three-active-section directly modulated laser to expand the modulation bandwidth. The modulation bandwidth reaches 48 GHz through the photon-photon resonance (PPR) effect generated by active optical feedback and the detuned loading effect.
Modeling and Optimization of Interband Cascade Laser AM Frequency Combs
Authors: Povolotskyi M. , Vurgaftman I.
Published: September 2024

The effect of group velocity dispersion, intraband relaxation, and nonradiative recombination on AM frequency combs produced by mid-IR interband cascade lasers with optimized two-section (gain and saturable absorber) cavities is analyzed using a detailed numerical model.
Fabry–Pérot Laser Diode for WDM-PON with Temperature-insensitive Laser Spectral Envelope
Authors: Zhang Ruigang , Han Yu , Tian Qi , Xian Qingyun , Liu Deming , Zheng Shuang , Zhang Minming
Published: September 2024

We propose a novel Fabry–Pérot laser diode with temperature-insensitive laser spectral envelope. By introducing a temperature-insensitive optical filter structure into the laser diode resonator, the laser spectral envelope shows substantially reduced temperature sensitivity.
Gain-Switched-Laser Frequency Comb Self-Injection-Locked to a Microresonator
Authors: Weng Wenle , Sharma Ankit , Kaszubowska-Anandarajah Aleksandra , Anandarajah Prince , Luiten Andre
Published: September 2024

A gain-switched-laser frequency comb is self-injection-locked to an electrooptic microresonator. The comb exhibits narrowed linewidth, suppressed frequency instability, and agile frequency control ability.
500 GHz Terahertz Wave-Optic Modulators in Thin Film Lithium Niobate
Authors: Zhang Yiwen , Chen Zhaoxi , Yang Jingwei , Feng Hanke , Zhu Sha , Wang Cheng
Published: September 2024

We report a terahertz wave lithium niobite modulator enabling efficient modulation up to 500 GHz with low RF half-wave voltage (Vπ) of 6 V at 300 GHz and 8 V at 500 GHz.
A Set of Non-sinusoidal Terahertz Pulses
Authors: Hine George
Published: September 2024

An analytical expression for a set of few-cycle pulses is derived and compared to experimental measurements of sub-cycle terahertz pulses. A set of pulses with orthogonal spectra are derived for more general ultrabroadband pulses.
Mechanical Tuning of the Diffraction Efficiency of THz Slanted Wire Gratings
Authors: Shuchi Nuren , Stinson V. Paige , Subash Uma , Poutous Menelaos K. , Hofmann Tino
Published: September 2024

The diffraction efficiency of a slanted wire diffraction grating is experimentally investigated at 0.11 THz while mechanically changing the slant angle from 25° to 45°. The diffraction efficiency is found to vary by more than 50%.
Terahertz wave generation by dual-wavelength laser lights injection-locked to a soliton microcomb in mode spacing of 560 GHz for wireless communication with advanced modulation format
Authors: Tokizane Y. , Kikuhara T. , Makimoto Y. , Kishikawa H. , Okamura Y. , Nishimoto K. , Kanno A. , Hisatake S. , Kuse N. , Yasui T.
Published: September 2024

We demonstrate the THz-wave generation using dual wavelength lasers injection-locked to a soliton microcomb and photomixing. We also apply the generated wave to THz wireless communication in 560 GHz band using advanced modulation format.
Photonic-assisted THz Wideband Frequency Hopping and Secure Communication Based on Optical Injection Locking
Authors: Yang Zhencan , Yang Fan , Zhang Jian
Published: September 2024

We propose a photonic frequency-hopping terahertz communication system based on optical injection-locking. Secure THz transmission is demonstrated with a 25 GHz hopping bandwidth and 2.5 Gbps data rate in 115-140 GHz band.
Improving Electrical Conductivity of Polymer Composites via Photothermal Heating
Authors: Crites Erin , Hicks Nora , Bochinski Jason , Clarke Laura
Published: September 2024

We increase the conductivity of polymer composites via photothermal heating of carbon nanotubes. We find a relative increase in conductivity for composites related to the intensity of the laser used during photothermally treatment.
High-Precision and Large-Range Deflection of Light Beam with Fast Steering Mirrors
Authors: Mei Tianjin , Huang Ke , Fang Haoran , Zhang Zixiao , Liu Chen
Published: September 2024

We proposed a combined kinematic model and mechanical decoupling method to extend FSM's operation range. Experimental result demonstrates pointing error is smaller than 0.05° in the range of -30° to 36° horizontally and ±24° vertically.
Effective Temperature of an Optically-induced Collective Non-steady State
Authors: Abdelhafiz Sohila , Jazayeri Amir M. , Dogariu Aristide
Published: September 2024

We demonstrate that the notion of motional effective temperature is relevant even in non-steady state. We show experimentally that the effective temperature increase is a collective effect due to optically-induced interaction between colloidal particles.
Optical domain SOP monitoring up to 5Mrad/s in long-haul WDM transmission systems
Authors: Shan Linan , Zhang Xiaoguang , Zhao Wanxin , Yao Guanghao , Jia Yihan , Sun Shuning , Wang Chong , Xi Lixia , Xiao Xiaosheng , Cui Nan
Published: September 2024

We propose a simple structure for monitoring SOP in optical-domain, which can monitor SOP of 500rad/ŝ5Mrad/s within 4% error, with tolerance of more than 25840 ps/nm CD and 4ps PMD in 1520km long-haul WDM systems.
In-Service OTDR Based on Native Transmitter for TDM PON
Authors: Zou Yang , Dai Xiaoxiao , Cheng Mengfan , Deng Lei , Wang Liang , Yang Qi , Liu Deming
Published: September 2024

We proposed an in-service OTDR based on native transmitters, which achieves rate matching without adding hardware complexity by introducing DSM. It achieves a dynamic range of >10 dB and a spatial resolution of 10 m.
Enhancing the Performance of BOCDA Sensor using Deconvolution Algorithm
Authors: Chen Shuyan , Zhao Zhiyong , He Huan , Wei Weilun , Zou Xuan , Tang Ming
Published: September 2024

We have achieved a fourfold-improved spatial resolution and a much wider dynamic range without extra system hardware complexity by using deconvolution algorithm to post-process the data of traditional BOCDA sensor.
Accuracy Enhancement in Sweep-Free BOTDA Enabled by Simultaneous Full-Field Brillouin Spectrums Measurement
Authors: He Huan , Zhao Zhiyong , Tang Ming
Published: September 2024

Utilizing frequency-agility double-sideband digital optical frequency comb, a fast BOTDA based on full-field Brillouin spectrums is demonstrated with a record 4-m spatial resolution and less than 1.4-MHz frequency uncertainty over 10 km fiber.