bluuebunny/crossref_metadata_2025 huggingface dataset:
Ultrasound sensing by coherent multi-heterodyne interferometry using electro-optic frequency combs
Authors: Guo Xudong , Li Mingsheng , Tang Huajun , Xu Yue , Lee Wei-Ning , Tong Yitian , Wong Kenneth K. Y.
Published: September 2022

We present a dual-comb interferometer to achieve high-sensitivity ultrasound detection. An 8 dB signal-to-noise ratio improvement has been achieved owing to the coherent accumulation of multi-comb tones, and the sensitivity is improved to 35 mrad/kPa.
Ultrafast-Laser-Inscribed Type-I Waveguides and Beamsplitters inside IG2 for Mid-IR Astrophotonics
Authors: Gebremichael W. , Oliwa D. , Hu W. , Dorrer C. , Qiao J.
Published: September 2022

We present a 1 × 4 beamsplitter that is for the first time inscribed inside IG2 material by an ultrafast laser, and a comprehensive study of inscription parameters’ effect on the performance of Type-I IG2 waveguides.
A Deconvolution Enhanced Multimode Michelson Objective Based Full Field Optical Coherence Tomography Imaging System
Authors: Napier James , Hudalla Magnus , Neu Walter
Published: September 2022

A Michelson Objective based Full Field Optical Coherence Tomography system is combined with fluorescence imaging and deconvolved with the point spread function to enhance the image resolution of biological tissue, exceeding classical resolution limits.
Deep learning-based image reconstruction in optical coherence tomography using undersampled spectral data
Authors: Zhang Yijie , Liu Tairan , Singh Manmohan , Çetintaş Ege , Luo Yilin , Rivenson Yair , Larin Kirill V. , Ozcan Aydogan
Published: September 2022

We present a deep learning-based image reconstruction method in swept-source optical coherent tomography (OCT) using undersampled spectral data. This method can improve the imaging speed without the need for any hardware modifications.
Glyphosate Assessment by Raman Spectroscopy and Surface-Enhanced Raman Spectroscopy
Authors: Hernández-Vidales Karen , Loyola-Leyva Alejandra , Enríquez-Ramos Kristal , González Francisco Javier
Published: September 2022

We applied Raman and SERS spectroscopy to obtain the fingerprint of glyphosate, a worldwide used dangerous pesticide. We corroborate the utility of gold nanoparticles to improve the Raman scattering, obtaining an enhancement factor of 105.
Phase Identification and Bespoke Beam Shaping for Coherent Beam Combination via Deep Learning
Authors: Mills Ben , Grant-Jacob James A , Praeger Matthew , Eason Robert W , Nilsson Johan , Zervas Michalis N.
Published: September 2022

Practical application of coherent beam combination of multiple fibres necessitates phase identification and optimisation in real-time. Here, we solve this mathematical challenge via deep learning, and hence demonstrate the potential for real-time bespoke beam shaping.
Femtosecond laser inscription of integrated orbital angular momentum emitter
Authors: Wang Jue , Cai Chengkun , Fu Tianhao , Wang Jian
Published: September 2022

We present integrated orbital angular momentum (OAM) emitters by using femtosecond laser inscription. The emitter we designed consists of a Mach-Zehnder interferometer and specially designed trench waveguide, transforming Gaussian beams into first-order OAM beams.
Femtosecond laser inscribed photonic lantern for the fan-in/ fan-out of a 19-core fiber
Authors: Liang Yize , Cai Chengkun , Wang Kangrui , Lian Xiaokang , Wang Jue , Liu Jinfeng , Wang Jian
Published: September 2022

We design and fabricate a 19-channel fan-in/fan-out photonic lantern based on the femtosecond laser direct writing technique. Such a device enables space-division multiplexing transmission in a 19-core fiber over the C+L band.
Neural network-based multiplexed and micro-structured virtual staining of unlabeled tissue
Authors: Zhang Yijie , de Haan Kevin , Li Jingxi , Rivenson Yair , Ozcan Aydogan
Published: September 2022

We present a method to generate multiple virtual stains on an image of label-free tissue using a single deep neural network, which is fed with the autofluorescence images of the unlabeled tissue alongside a user-defined digital-staining matrix. Users can indicate which stain to apply on each pixel by editing the digital-staining matrix and blend multiple virtual stains, creating entirely new stain combinations.
Long Range Single Pulse Raman Distributed Temperature Sensor Using Standard Single Mode Fiber
Authors: Baytekin Hakan , Uyar Faruk , Kartaloglu Tolga , Ozbay Ekmel , Ozdur Ibrahim
Published: September 2022

We present a single pulse Raman distributed temperature sensor using standard single mode fiber and having ~5.2 m spatial resolution at 18.5 km sensing distance with an averaging time of ~3.3 minutes.
Real-time imaging of mid-range LiDAR using single-chip beam scanner
Authors: Jang Bongyong , Lee Jisan , Shim Dongsik , Byun Hyunil , Lee Changbum , Son Kyunghyun , Cho Yongchul , Otsuka Tatsuhiro , Shin Changgyun , Shin Dongjae , Hwang Inoh , Lee Eun Kyung , Choo Hyuck , Ha Kyoungho
Published: September 2022

We demonstrate light-detection and ranging (LiDAR) operation detection ranges up to 30 m, 20 fps using fully integrated silicon photonic optical phased array with sparsely arranged semiconductor optical amplifiers (SOAs), for the first time.
Lensed MMF and SMF coupling of tri-mode VCSEL for 62-Gbps OOK and 164-Gbps OFDM transmission
Authors: Chang Hung-Bin , Lee Shao-Yung , Cheng Chih-Hsien , Kuo Hao-Chung , Lin Gong-Ru
Published: September 2022

The non-tilting lensed-MMF/SMF coupling of tri-mode VCSEL with D factor of 14 GHz/mA0.5 is demonstrated to provide root-mean-square linewidth of 0.66/0.54 nm and mode-partition-noise of -145/-140 dBc/Hz for error-free 62-/58-Gbit/s NRZ-OOK and 164-/140-Gbit/ s 16-QAM-OFDM transmission.
High Sensitivity Microlaser Detection via VIPA-Grating spectrometer with 2D dispersion
Authors: Zhou Xuewen , Scarcelli Giuliano
Published: September 2022

We developed a high-resolution spectrometer for microlaser detection featuring cascaded spectral dispersion from VIPA etalon and grating in orthogonal directions. Our spectrometer can measure lasing with spectral resolution up to 100x higher than conventional spectrometers.
Multispectral Trans-Palpebral Illumination for Widefield Fundus Photography of the Retina and Choroid
Authors: Yao Xincheng , Son Taeyoon , Ma Jiechao , Rossi Alfa
Published: September 2022

This study is to characterize spectral efficiency of trans-palpebral illumination, and to validate label-free multispectral imaging for nonmydriatic widefield examination of the chorioretinal vasculature in the living human eye.
Self-referenced multiplex CARS imaging using beam self-cleaning in GRIN multimode fiber
Authors: Wehbi Sahar , Mansuryan Tigran , Krupa Katarzyna , Fabert Marc , Tonello Alessandro , Zitelli Mario , Ferraro Mario , Mangini Fabio , Sun Yifan , Vergnole Sébastien , Wabnitz Stefan , Couderc Vincent
Published: September 2022

Spatial beam self-cleaning process in graded-index multimode optical fiber was successfully applied for self-referenced multiplex coherent anti-Stokes Raman Scattering (M-CARS) based imaging. M-CARS spectroscopy of methanol and imaging of polystyrene bead are reported through a simplified scheme.
Coherent Doppler Lidar for Improved Object Velocomitry using Dual Measurement Fusion
Authors: Wolfe Sean , Shirahata Takuma , Yamashita Shinji , Set Sze Yun
Published: September 2022

The fusing of Time-of-Flight measurements with Doppler shifts in Pulsed Coherent Doppler Lidar (Pulsed CDL) through a Kalman Filter. Live tests for noise characterization and simulations show that object range and velocity estimates are improved over traditional Pulsed CDL by 3.9% and 16%, respectively.
High speed mid-infrared Stark modulator for optical data transmission up to 10 Gbit.s−1
Authors: Bonazzi Thomas , Dely Hamza , Spitz Olivier , Rodriguez Etienne , Gacemi Djamal , Todorov Yanko , Pantzas Konstantinos , Beaudoin Grégoire , Sagnes Isabelle , Grillot Frédéric , Vasanelli Angela , Sirtori Carlo
Published: September 2022

Using the Stark effect in coupled InGas/AlInAs quantum wells, we demonstrate a mid-infrared broadband optoelectronic external modulator enabling 10 Gbit/s free space optical data-transmission in the second atmospheric window (9 μm) at room temperature.
Interband cascade external laser system for the rapid detection of trace gases in the MIR region
Authors: Hoppe Morten , Aßmann Christian , Schmidtmann Sebastian , Honsberg Martin , Tatenguem Herve , Schanze Thomas , Sacher Joachim R. , Gu-Stoppel Shanshan
Published: September 2022

An IC-ECL with different waveguide concepts and a MEMS device as tuning element for high acquisition rates is presented. Characterization results and use for detection of trace gases in the MIR region will be shown.
Microfabricated Low-Profile Tunable LC-Refractive Fresnel (LCRF) Lens for Smart Contacts
Authors: Banerjee Aishwaryadev , Ghosh Chayanjit , Karkhanis Mohit , Deshpande Adwait , Pourshaban Erfan , Kim Hanseup , Mastrangelo Carlos H.
Published: September 2022

Using high-performance LC (E7) filled microfabricated refractive Fresnel chambers, we experimentally demonstrate a thin low-profile adaptive optical system with high analog tunability (2.1 D) that can be integrated with an adaptive contact-lens system.
Novel fold-back 1×20 100 GHz mux/demux planar Echelle grating for low loss photonic switches
Authors: Wang Yu , Calabretta Nicola
Published: September 2022

We design and investigate a novel photonic integrated four-use fold-back 20 channels 100GHz spacing Echelle grating multiplexer/demultiplexer. Results show <2.5dB insertion loss, <−45dB cross-talk, and fabrication tolerance of 0.3μm rounding corner radius.
Quantum processors for high performance analog RF signals processing
Authors: Ulrich Lothaire , Welinski Sacha , Louchet-Chauvet Anne , de Rosny Julien , Dolfi Daniel , Berger Perrine , Morvan Loic
Published: September 2022

Quantum properties of Tm3+ ions in a YAG matrix enable high dynamic signal processing for RF sensing. Here we program a spectro-spatial grating selectively diffracting optical frequencies, leading to a high performance photonic RF filter.
Single-Ended Coherent Channel Estimation
Authors: Fardoost Alireza , Vanani Fatemeh Ghaedi , Chandrasekhar Sethumadhavan , Li Guifang
Published: September 2022

We demonstrate a novel method for finding the coherent transfer matrix (CTM) of a multi-channel transmission medium utilizing backscattering and coherent optical time-domain reflectometry (COTDR). We measured the CTM for two polarizations of a single-mode fiber with ±0.3dB and ±8.5° amplitude and phase precisions.
A Novel Optical Path Matching Method for Balanced Detection
Authors: Li Zhengyang , Zhang Yang’an , Yuan Xueguang , Xiao Zhenyu , Huo Jiayan , Huang Yongqing
Published: September 2022

A novel optical path matching method is provided to eliminate the optical path difference of the balanced detection fiber link. The noise floor is reduced by 8dB compared with that of the single photodetector output.
An optimized diamond nanopillar for enhanced NV-center collection efficiency
Authors: Zhu Tianqi , Rhensius Jan , Janitz Erika , Damle Viraj , Puebla-Hellmann Gabriel , Degen Christian
Published: September 2022

A diamond nanopillar with a single nitrogen-vacancy (NV) center at the apex can serve as a promising quantum sensor. Our work is focused on improving the photon collection efficiency to achieve higher sensitivity.
One-way clock synchronization with single photons
Authors: Spiess Christopher , Töpfer Sebastian , Rieländer Daniel , Steinlechner Fabian
Published: September 2022

Quantum communication systems can be synchronized using data patterns, precise oscillators, or pulsed lasers. We demonstrate an alternative approach that uses time-bin quanta as a reference for synchronizing low-cost oscillators down to timing uncertainties < 16 ps.
Experimental realization of topological parametric phonon lasers
Authors: Xi Xiang , Ma Jingwen , Sun Xiankai
Published: September 2022

We experimentally realized the first topological parametric phonon lasers based on nonlinear nanoelectromechanical Dirac-vortex cavities with strong squeezed interaction, which represent an important advance in nonlinear topological physics.
1.5mJ, 30W OPA at 2um via spectrally selective amplification
Authors: Wilson Derrek , Ivanov Maksym , Abdolghader Pedram , Raffray Antoine , Balciunas Tadas , Légaré François , Schmidt Bruno E , Wörner Hans Jakob
Published: September 2022

To reach high average power operation combined with good conversion efficiency we utilize spectrally selective amplification with multiple nonlinear crystals to yield 12% conversion efficiency with 30W output at 2um wavelength.
Ultrafast Mid-IR Lasers for Soft X-ray High-Harmonic Generation and Applications
Authors: Kapteyn H. C. , Murnane M. M.
Published: September 2022

Coherent soft x-rays can be generated on a tabletop by using mid-IR lasers to drive high harmonic generation. The high coherence of this source enables diffraction-limited x-ray functional microscopy of nano and bio systems.
Spatiotemporal Control of Femtosecond Pulses
Authors: Chen Lu , Zhu Wenqi , Huo Pengcheng , Song Junyeob , Vabishchevich Polina P. , Zhang Cheng , Lezec Henri J. , Xu Ting , Agrawal Amit
Published: September 2022

Arbitrary spatiotemporal shaping requires complete control of the electric-field vector at each space-time coordinate. Here, we demonstrate simultaneous and independent tailoring of spatial and temporal properties of femtosecond pulses using a single-layer dielectric metasurface.
Modeling of Nonlinear Propagation of Femtosecond Laser Pulse in Air for Laser Ablation
Authors: Yamada Ryohei , Komatsubara Wataru , Sakurai Haruyuki , Konishi Kuniaki , Mio Norikatsu , Yumoto Junji , Kuwata-Gonokami Makoto
Published: September 2022

We have developed a model to simulate the nonlinear propagation of ultrashort laser pulse in air, incorporating the effects of self-focusing and air ionization, and have succeeded in quantitatively predicting the ablation radius of copper.
Theory of parametric amplification in coupled lossy waveguides
Authors: Ribeiro Vitor , Perego Auro M.
Published: September 2022

We study theoretically an optical parametric amplifier made of two coupled waveguides, accounting for losses and spatially dependent coupling, and show that it can have improved performances compared to the standard single waveguide version.
New type of frequency standard transitions realized by comb laser
Authors: Chen Bo-Wei , Liu Tze-Wei , Yu Hsin-Hung , Cheng Wang-Yau
Published: September 2022

The clock transitions recommended by BIPM are never realized by a femtosecond comb laser. In this report, we recommend two comb-laser-based stepwise transitions resolved simultaneously from rubidium and cesium atom.
Reduction of Temperature Drift in Refractive-index-sensing Optical Frequency Comb by Mechanical-sharing Dual-fiber-cavity Configuration
Authors: Miyamura Shogo , Oe Ryo , Kajisa Taira , Taue Shuji , Minamikawa Takeo , Nakajima Yoshiaki , Minoshima Kaoru , Yasui Takeshi
Published: September 2022

We suppress the temperature drift in the refractive-index-sensing optical frequency comb (RI-sensing OFC) by taking the difference of repetition frequency between an active RI-sensing OFC and a dummy one in the mechanical-sharing dual-fiber-cavity configuration.
Photonic Frequency Analysis of Microwave Signals using an Integrated Ring Resonator and Heterodyne Detection
Authors: Singh Karanveer , Preußler Stefan , Misra Arijit , Zhou Linjie , Schneider Thomas
Published: September 2022

A photonic frequency analysis of microwave signals based on filtering by a ring resonator and heterodyne detection with a resolution and accuracy of 1 MHz and ±0.5 MHz for a wide measurement range is presented.
Polarization-Insensitive One-Dimensional Grating Coupler Demonstrated in a CMOS-Photonics Foundry Platform
Authors: Zhang Bohan , Schiller Mark , Al Qubaisi Kenaish , Onural Deniz , Khilo Anatol , Naughton Michael J. , Popović Miloš A.
Published: September 2022

We demonstrate a one-dimensional dual polarization fiber-to-chip grating coupler implemented in a CMOS-photonics foundry platform, with a measured 1 dB polarization-dependent loss bandwidth of 70 nm in the O-band.
Fluorescence Lifetime Imaging of Protein Aggregation to Understand the Etiology of Neurodegenerative Diseases
Authors: Ivey Paula-Marie E. , Krishnamoorthi Arjun , Min Sehong , Rochet Jean-Christophe , Webb Kevin J.
Published: September 2022

Time-domain fluorescence lifetime imaging microscopy is presented for the detection of alpha-synuclein aggregation in neurons and for determining spread, thereby facilitating understanding of the development and progression of Parkinson’s disease.
Controlling the P T Symmetry of Dirac Plasmons in Dual-Grating-Gate Graphene THz Laser Transistors for Ultrafast Gain Switching
Authors: Otsuji Taiichi , Satou Akira , Fukidome Hirokazu , Ryzhii Maxim , Ryzhii Victor , Narahara Koichi
Published: September 2022

We introduce a new scheme of actively controlling the

P
T

symmetry of the graphene Dirac plasmon metasurface in a graphene-channel laser transistor structure. Numerical simulation demonstrates the capability of 100-Gbit/s-class ultrafast gain-switching in its plasmonic THz laser operation by electrically modulating the

P
T

symmetry by the applied bias voltages.
Steady-state dissipative Kerr soliton with a 30 GHz existence window in a microresonator pumped by a step-tuned laser
Authors: Weng Haizhong , Afridi Adnan , Li Jing , McDermott Michael , Tu Huilan , Lu Qiaoyin , Guo Weihua , Donegan John F.
Published: September 2022

We demonstrate the steady-state dissipative Kerr soliton with a 33-GHz single-soliton step and a 30-GHz existence window, by tuning the pump laser at an adiabatic scanning speed (1nm/s) and with step mode, respectively.
Online inverse design chip for matrix computation and tunable wavelength selection switch
Authors: Zhang Wenkai , Cheng Junwei , Zhou Hailong , Dong Jianji , Zhang Xinliang
Published: September 2022

We demonstrate an online inverse design chip realizing incoherent arbitrary positive matrix computation with high accuracy and tunable wavelength selection switch whose extinction ratio of each output port is beyond 10dB.
Microwave-optical transduction using high overtone bulk acoustic resonances
Authors: Blésin Terence , Siddharth Anat , Tian Hao , Wang Rui Ning , Attanasio Alaina , Liu Junqiu , Bhave Sunil A. , Kippenberg Tobias J.
Published: September 2022

We demonstrate efficient microwave-optical frequency conversion using a released HBAR-on-photonic damascene platform. Thermal tuning of coupled optical ring cavities with integrated heaters allows to operate in the triply resonant transduction scheme.
5G-Based Bidirectional WDM VLLC-UWLT and White-Lighting Converged Systems
Authors: Lin Yan-Yu , Chang Poh-Suan , Chen Yu-Ting , Ko Ting , Liu Chen-Xuan , Lu Hai-Han
Published: September 2022

A 5G-based bidirectional WDM VLLC-UWLT and white-lighting converged system through 10-m free-space link with an 8.8-m ocean water-air-ocean water interface is successfully built. It outperforms existing OWC systems through free-space link with an air-water-air interface.
Frequency Doubler Based Optical Generation and Transport of 5G mmWave Signals for Fronthauling
Authors: Sreeraj S J , Lakshman B , Ganti Radhakrishna , Koilpillai David , Venkitesh Deepa
Published: September 2022

An analog optical doubler system is realized for the transport of 5G mmWave (26.4 GHz) over 2 km fiber. Optimization of operating conditions for error-free performance of 100 MHz signals upto 256QAM is demonstrated.
Ultrahigh-order optical orbital angular momentum measuring assisted by annular phase grating
Authors: Ni Wenjun , Liu Rui , Tian Yongsheng , Wu Ziwen , Chen Jinlong , Shum Perry Ping , Yang Chunyong
Published: September 2022

Combining Gaussian beam and annular phase grating (APG) can highlight the spiral stripes with uniform distribution. Here, it shines new light on ultrahigh-order orbital angular momentum (OAM) states detecting, achieving higher than ± 220.
A Telecommunication-Compatible, Bias-Free Photoconductive Terahertz Emitter on a Silicon Substrate
Authors: Lu Ping-Keng , Zhao Yifan , Turan Deniz , Jiang Xinghe , Jarrahi Mona
Published: September 2022

We present a telecommunication-compatible, bias-free photoconductive terahertz emitter fabricated on an InAs layer grown on silicon, which provides significant enhancement in the radiated power above 0.5 THz compared to the state-of-the-art bias-free terahertz emitters.
Topological Protection of Supercontinuum Generation
Authors: Xi Chaoxiang , Jiang Zhen , Zhou Lefeng , He Guangqiang
Published: September 2022

We demonstrate a topologically protected supercontinuum generation process based on lithium niobate valley photonic crystals. Simulation results show that this structure can achieve full coverage topological protection of the supercontinuum spectrum.
Complex-valued Reconfigurable Diffractive Optical Neural Networks using Cost-effective Spatial Light Modulators
Authors: Chen Ruiyang , Li Yingjie , Lou Minhan , Yu Cunxi , Gao Weilu
Published: September 2022

We demonstrate a reconfigurable diffractive optical neural network based on cost-effective spatial light modulators. We explored various diffraction calculation methods to match trainable models with experimental results. This lays the foundation for fast system deployment.
Integrated Photonic-Electronic Memristors
Authors: Emboras Alexandros , Portner Kevin , Weilenmann Christoph , Zellweger Till , Lewerenz Mila , Cheng Bojun , Passerini Elias , Alabastri Alessandro , Ma Ping , Leuthold Juerg , Luisier Mathieu
Published: September 2022

We integrate memristors in a silicon photonic/plasmonic platform and demonstrate modulators, photodetectors and electronic devices complemented with memory effect. The demonstrated memristors could be the key photonic building blocks in hybrid photonic-electronic neuromorphic chips.
Diffraction-free Space-Time Wave Packets Localized in All Dimensions
Authors: Yessenov Murat , Free Justin , Chen Zhaozhong , Johnson Eric G. , Lavery Martin P. J. , Alonso Miguel A. , Abouraddy Ayman F.
Published: September 2022

We present the first demonstration of propagation-invariant space-time (ST) wave packets localized in all dimensions. By introducing orbital-angular-momentum into the wave packets, we produce propagation-invariant ST-OAM wave packets traveling at arbitrary group velocities.
Demonstration of Dispersion Cancellation and Inversion in the Anomalous and Normal GVD Regimes
Authors: Hall Layton A. , Abouraddy Ayman F.
Published: September 2022

We demonstrate for the first time group velocity dispersion (GVD) cancellation and inversion in both the anomalous and normal GVD regimes utilizing space-time wave packets endowed with non-differentiable angular dispersion.
Observation of Nonvanishing Optical Helicity in Thermal Radiation from Symmetry-Broken Metasurfaces
Authors: Wang Xueji , Sentz Tyler , Bharadwaj Sathwik , Ray Subir , Wang Yifan , Jiao Dan , Qi Limei , Jacob Zubin
Published: September 2022

We experimentally demonstrate magnetic-field-free circular-polarized thermal radiation based on a symmetry-broken metasurface. A nonvanishing optical helicity in the radiation excited by thermal fluctuations is observed in a dispersionless energy band.
Optimization and manipulation of quantum-dot-based single-photon sources by 3D polymeric photonic structures
Authors: Ngo Gia Long , Au Thi Huong , Nguyen Duc Long , Hermier Jean-Pierre , Lai Ngoc Diep
Published: September 2022

We report on optimization and manipulation of optical properties of CdSe/CdS core/shell quantum-dot single-photon emitters by placing them in polymer photonic struc-tures using a low-cost technique called low one-photon absorption direct laser writing.
Out, Lost, or Broken: Photon Pairs from a Lossy Resonator
Authors: Banic Milica , Zatti Luca , Liscidini Marco , Sipe J. E.
Published: September 2022

We study the generation of photon pairs via spontaneous four-wave mixing in a resonant integrated system with scattering loss. We study the effect of loss on the pair generation rates and the biphoton wavefunctions.
Random number generation using spontaneous symmetry breaking in a Kerr resonator
Authors: Quinn Liam , Xu Gang , Li Zongda , Fatome Julien , Murdoch Stuart G. , Erkintalo Miro , Coen Stéphane
Published: September 2022

We present an all-optical random number generator based on polarization symmetry breaking in a passive, nonlinear Kerr cavity. The system generates numbers with statistically confirmed randomness at MHz rates with no post-processing.
Self-pulsing and chaos in nonlinear photonic dimers
Authors: Yelo-Sarrión Jesús , Leo François , Gorza Simon-Pierre , Parra-Rivas Pedro
Published: September 2022

We study the dynamics emerging in the photonic driven dissipative Bose-Hubbard model describing two coupled Kerr cavities. By bifurcation analysis we identify rich dynamics, including oscillatory states, chaotic dynamics as well as spikes.
Induced dark solitons by means of singular beams
Authors: Ortega A. Balbuena , Torres-González F. E. , Gayou V. López , Macuil R. Delgado , Assanto G. , Volke-Sepulveda K.
Published: September 2022

We investigate the nonlinear propagation of singular light beams with complex structures of phase and intensity in a colloidal suspension of gold nanoparticles. All the structured beams can act as waveguides of a probe beam.
Superchiral Surface Lattice Resonance on 3D Bipartite Metasurface
Authors: Tse Joshua T.Y. , Ong H.C.
Published: September 2022

We demonstrate record-breaking 44 times enhancement in optical chirality from surface lattice resonance supported on 3D bipartite nanostructure. The superchiral metasurface is expected to be useful in chiral sensing, fluorescence, and nonlinear optics.
Spatio-Spectro-Temporal Characterization of Ultrashort Vortex Pulses
Authors: Baca-Montero Erick R. , Shulika Oleksiy V.
Published: September 2022

Generation of OAM ultrashort vortices requires compensation of dispersive broadening and distortion. Here, we present analysis of spatio-spectro-temporal properties of an ultrashort vortex through (3+1)D numerical simulations. Case studies are presented.
Resolution of Gauge Ambiguities in Cavity Quantum Electrodynamics
Authors: Taylor Michael A.D. , Mandal Arkajit , Huo Pengfei
Published: September 2022

We present the fundamental theoretical framework for cavity Quantum Electrodynamics in truncated Hilbert spaces by resolving the gauge ambiguities between the Coulomb gauge and the dipole gauge Hamiltonians under both photonic mode and matter truncation.
Multiphysics Modeling of Grating Chips for Magneto-Optical Trapping of Atoms
Authors: Deshpande Sanket , Yu Zhaoning , Zhang Jin , Oh Eunji , Huft Preston , Hickman Garrett , Goldsmith Randall H. , Saffman Mark , Kats Mikhail A.
Published: September 2022

We present a modeling method that incorporates full-wave electromagnetic simulations and radiation force calculations to evaluate the performance of grating chips for compact megneto-optical traps (MOTs).
Adjustable Q-Factor Infrared Absorption with Germanium Nanohole Metasurfaces
Authors: Ye Ming-Jyun , Chen Kuo-Ping
Published: September 2022

The absorption ~90% at the communication wavelength was demonstrated by germanium nanohole metasurface with subwavelength thickness. By tuning the different hole depth in Ge metasurface, we can get the tunable Q-factors from 116 to 236.
Simulation of an EOT Based 1D-Plasmonic Metasurface Sensor for Absorptive Analytes
Authors: Verma Sagar Kumar , Srivastava Sachin Kumar
Published: September 2022

Simulation and optimization of extra-ordinary transmission from 1D-plasmonic metasurfaces was performed for near-infrared spectral range and utilized to sense absorptive analytes. Optimal metasurfaces could achieve spectral-sensitivity of 1539 nm/RIU and transmittance-sensitivity of 426 %/ RIU.
Directionality Control and Strong-localization of Light in a Disordered Medium of Reduced Area
Authors: Baten Md Zunaid , Naziul Haque A. K. M. , Ahmed Tashfiq
Published: September 2022

By juxtaposing a 2D periodic array, Anderson localization of light is attained in a disordered medium of reduced area. Directionality control of the strongly localized mode of light is also attained with the proposed structure.
Parity symmetry of reflection, optical symmetric pushing, and pulling-pushing flipped force in parity-time symmetric photonic systems
Authors: Lee Jeng Yi , Chen Pai-Yen
Published: September 2022

By Lorentz reciprocity theorem and parity-time (PT) symmetry, we propose a generalized parametric space for any PT symmetry photonic systems to indicate symmetry phase, broken symmetry phase, exceptional point, transmittance and reflectances. Through this generalized parametric space, We discover the emergence of symmetry reflection and optical pulling force.
Cryogenic O-band photoluminescence spectroscopy of T-centers in monolithic Si for mesoscopic cavity quantum electrodynamics
Authors: Sarihan Murat Can , Huang Jiahui , Liu Wei , Kang Jin Ho , Liang Baolai , Wong Chee Wei
Published: September 2022

We examine the 1325-nm T-center excitonic transitions in FZ-Si and SOI substrates towards a chip-scale strongly-coupled spin-photon interface. We further observe an unidentified doublet transition around 1312-nm in FZ-Si as a possible single-photon emitter.
Stimulated emission from superradiant atoms in waveguide QED
Authors: Asaoka Rui , Gea-Banacloche Julio , Tokunaga Yuuki , Koshino Kazuki
Published: September 2022

We investigate the stimulated emission from superradiant atoms coupled to a waveguide induced by a coherent-state pulse. We provide the dynamical properties of this system and also evaluate the system as a amplifier.
Entangled Two-Photon Absorption with Isolated Photon Pairs or Broadband Bright Squeezed Vacuum
Authors: Raymer Michael G. , Landes Tiemo , Allgaier Markus , Merkouche Sofiane , Marcus Andrew H. , Smith Brian J.
Published: September 2022

We present an analytical theoretical model describing two-photon absorption (TPA) driven by spontaneous parametric down conversion (SPDC) or by broadband bright squeezed vacuum (BSV) and identify bounds and discuss contributions of coherent and incoherent processes.
Characterization of the Entangled Photon State Before, During, and After a Proposed Two-Photon Absorption Event
Authors: Cushing Scott
Published: September 2022

An entangled state is spectrally and temporally characterized during a proposed entangled two-photon interaction. The measurement proves that for R6G single photon, classical scattering process is responsible for reported cross section disagreements between measurement approaches.
Nanoelectromechanical tuning of slot dielectric metasurfaces
Authors: Zheng Tianzhe , Kwon Hyounghan , Faraon Andrei
Published: September 2022

We present a design for nanoelectromechanical tuning of high-Q slot resonant dielectric metasurfaces. The design provides over 60% intensity modulation under 1.5V and independent modulation for multiwavelengths.
Large-Scale Annual Modeling of Low-Emissivity Films for Energy-Saving Buildings
Authors: Fan Lingling , Peng Yucan , Jin Weiliang , Cui Yi , Fan Shanhui
Published: September 2022

We present large-scale building simulations with a low-emissivity film. This film annually reduces heat gain and loss by 257.6 MJ per installation wall area. It is estimated to reduce 1.14 billion metric tons of global CO2 emission.
Optical Sensor Platform for In Situ Environmental Monitoring
Authors: Kroo Anne R. , Lorenzo Simón , Solaard Olav
Published: September 2022

We introduce a biodegradable and remotely-monitored optical sensor platform for physical and thin film chemical sensors and provide an experimental proof of concept of this platform showing temperature, and 1D angular characterization.
An intrusion events recognition method by incremental learning assisted with fiber optic DAS system
Authors: Zhang Shixiong , He Tao , xiao Kai , Fan Cunzheng , Li Hao , Yan Zhijun , Liu Deming , Sun Qizhen
Published: September 2022

An intrusion events recognition method by incremental learning is proposed and demonstrated. Assisted with fiber optic distributed acoustic sensing (DAS) system, the average recognition accuracy of 91% is achieved with only 28.7% training set in the field test.
Spot-Size Converter with Low Polarization-Dependent Loss Manufacturable with 0.18 μm CMOS Design Rules
Authors: Uemura Hirotaka , Motoji Reona , Matsui Naoki , Maeda Dan , Sugita Tomoya
Published: September 2022

We propose a spot-size converter design manufacturable with 0.18 μm CMOS design rules. This structure, composed of two-step silicon nitride tapers and intermediate cores, reduces polarization loss by more than half that of conventional structures.
Plasmonic Effect of Ag-Nanoparticles on Self-powered Photodetection Performance of NiO/Si Heterostructure Device
Authors: Chaoudhary Savita , Dewasi Avijit , Rastogi Vipul , Mitra Anirban
Published: September 2022

Self-powered photodetectors have received great attention due to its advantages such as saving energy and compact size. Therefore, an attempt has been made to fabricate a self-biased NiO/Si heterojunction for the photodetection. In addition, the efficacy of Ag-nanoparticles on the photodetection under self-bias condition has been explored.
Optical Nonlinearity of Colloidal Quantum Wells Coupled to a Low Mode-Volume Cavity
Authors: Sharp David , Manna Arnab , Friedfeld Max , Cossairt Brandi , Majumdar Arka
Published: September 2022

CdSe colloidal quantum wells (CQWs) are coupled to low mode-volume silicon nitride nanobeam cavities with selective material placement, and CdSe CQW cavity-coupled photoluminescence indicates optical nonlinearity at room temperature.
Flatten optical frequency combs generated via parametric oscillations of a bottle microresonator
Authors: Crespo-Ballesteros Manuel , Matsko Andrey B. , Sumetsky Misha
Published: September 2022

We investigate the formation of flatten optical frequency combs (OFCs) generated by oscillations of a bottle microresonator parameters and show that an adjusted spatial distribution of oscillations can dramatically enhance the generated OFCs.
High-Speed Automatic Target Recognition using the Hybrid Opto-electronic Correlator with Multi-channel Detection
Authors: Hamidfar Tabassom , Gamboa Julian , Shen Xi , Shahriar Selim M.
Published: September 2022

We report on the demonstration of high-speed modality of the hybrid opto-electronic correlator for rotation, scale, and shift-invariant automatic target recognition via use of simultaneous detection of the relevant digital-holographic signals using six focal-plane arrays.
Coil-Based Waveguide Layout Architecture for Micro-Photonic Devices
Authors: Bidnyk S. , Yadav K. , Balakrishnan A.
Published: September 2022

A novel design methodology for building micro-photonic devices using a coil-based architecture is proposed. The effectiveness of the methodology has been demonstrated by realizing an ultra-compact 4-λ LAN multiplexer with state-of-the-art optical performance.
TiO2-based Flexible Integrated Photonics for High-sensitivity Temperature Sensing
Authors: Zhao Xuan , Fan Bo , Veeraraghavan Ashok , Robinson Jacob
Published: September 2022

We report a flexible temperature sensor based on TiO2 photonics that shows double the sensitivity compared to silicon photonics. This high sensitivity and biocompatibility pave the way towards point-of-care temperature detection for many biomedical applications.
Photonic Crystals with Split Ring Unit Cells for Subwavelength Light Confinement
Authors: Arnold Kellen P. , Halimi Sami I. , Allen Joshua A. , Hu Shuren , Weiss Sharon M.
Published: September 2022

We report a split ring photonic crystal that demonstrates an order of magnitude larger peak energy density compared to traditional photonic crystals. The split ring offers highly focused optical energy in an accessible subwavelength gap.
Ion-Based High-Harmonic Generation from Water Window to keV X-Ray
Authors: Chu Hsu-hsin , Liu Yao-Li , Wang Jyhpyng
Published: September 2022

Ion-based high-harmonic generation with quasi-phase-matching is proposed. The calculation shows that the relative conversion efficiency for water window/x-ray operation reaches about 15% of the perfect phase-matching condition.
Engineering the Frequency Response of Petahertz-Electronic Nanoantenna Field-Sampling Devices
Authors: Ritzkowsky Felix , Bionta Mina R. , Turchetti Marco , Berggren Karl K. , Kärtner Franz X. , Keathley Philip D.
Published: September 2022

Unlike atomic and bulk solid-state systems, nanoantenna-based petahertz-electronic devices offer unprecedented control over electron emission response. We show how device symmetry, nonlinearity, and driving waveform control the frequency response of petahertz-electronic optical field samplers.
Measurement-Verified Spatiotemporal Ultrafast Pulse Propagation
Authors: Wernsing Keith A. , Kane Daniel J.
Published: September 2022

We develop numerical modeling techniques to predict spatiotemporal ultrafast pulse propagation through optical systems. Predicted pulses are verified with downstream measurement. Measurement feedback enhances modeling for hard-to-access locations in ultrafast laser systems.
Quantum Cascade Laser Dual-Comb Spectrometer Intensity Noise Comparison: Symmetric vs. Asymmetric Configuration
Authors: Kosan Nicholas , Patrick Link , Liu Jie , Wysocki Gerard
Published: September 2022

We compare intensity noise of dual-comb spectrometers in symmetric and asymmetric configurations. Noise mitigation in both configurations is also compared. Results indicate the symmetric configuration provides enhanced noise suppression when compared to the asymmetric one.
Interference-Free Methane Laser Sensor Using Cepstral Analysis
Authors: Mhanna Mhanna , Sy Mohamed , Farooq Aamir
Published: September 2022

A laser sensor is developed for methane measurements in environmental conditions. It is based on tuning an ICL near 3.3 µm and cepstral analysis to isolate methane absorbance from baseline intensity fluctuations and interfering absorbance.
A Demonstration of Frequency-Shift Keying in Underwater Optical Wireless Communications
Authors: Guler Egecan , Geldard Callum , Baldwin Amy , Popoola Wasiu
Published: September 2022

This paper experimentally demonstrates the resilience of frequency-shift keying (FSK) signalling to turbulence effect in underwater optical wireless communications. The findings offer valuable insight into the design trade-off between spectral efficiency and resistance to turbulence.
Performance Evaluation of S+C+L-Band Optical Transmission over G.652.D and G.654.E Fibers
Authors: Feng Bo , Gan Lin , Guo Qiang , Cao Shiyi , Xiao Xinhua
Published: September 2022

We evaluate the performance of 150-nm SCL-band optical transmission over 1280-km G.652.D and G.654.E fibers. By optimizing power allocation and system configuration, SCL-band long-haul transmission enables the same performance as commercial C-band system.
Ship Detection Based on LiDAR and Visual Information Fusion
Authors: Ma Ruixin , Yin Yong , Bao Kexin
Published: September 2022

A multi-modal information fusion algorithm with LiDAR point cloud and camera images for ship target detection is proposed. It can effectively solve the limitations of single sensor environment perception and has higher precision and robustness.
High Average Power Four-pass Amplifer Based on Yb:CALYO crystal
Authors: Bai Chuan , Wang Geyang , Tian Wenlong , Zheng Li , Tian Xuan , Yu Yang , Zhang Dacheng , Zhu Jiangfeng , Wei Zhiyi
Published: September 2022

We report on a four-pass femtosecond amplifier based on a Yb:CALYO crystal. The seed of 2.7 W is amplified to 20.15 W, corresponding to 19% optical-to-optical efficiency. The spectrum and the beam quality maintain well.
One-sided cavity on an optical nanofiber using a composite technique
Authors: Yalla Ramachandrarao , Shafi K. Muhammed , Nayak Kali P , Hakuta Kohzo
Published: September 2022

A nanophotonic-based one-sided cavity is demonstrated using a composite technique. The cavity is designed to maximize channeling efficiency into one side of an optical nanofiber. Cavity coupling characteristics exhibited good correspondence with simulation results.
Achieving Stable Ultraviolet Photoelectrochemical Photodetection via TiO2-assisted GaN Nanowires
Authors: Liu Xin , Kang Yang , Wang Danhao , Fang Shi , Sun Haiding
Published: September 2022

The stability of GaN nanowires-based photoelectrochemical photodetector was significantly improved by coating the nanowires with an ultrathin TiO2 protective layer. Thereby, the device stably operated for over 2000 s with little photocurrent decay.
Ultrafast Carrier Transportation in Stepwise-Doped GaAs Photocathodes – Theory and Experiment
Authors: Zhou Rui , Jani Hemang , Duan Lingze
Published: September 2022

We report a theoretical model specifically developed to explain photoelectron dynamics in stepwise-doped GaAs photocathodes. Comparisons with pump-probe reflectometry measurement show good agreement and offer insights into carrier transportation and decay processes.
Reduction of Noise in a Passively Harmonic Mode-locked Fiber Laser by Optimizing Cavity Length
Authors: Zhao Zihao , Ye Guanyu , Shirahata Takuma , Wolfe Sean , Jin Lei , Set Sze Yun , Yamashita Shinji
Published: September 2022

We present the reduction of noise in a passively harmonic mode-locked fiber laser by optimizing cavity length. Experimental observation and measurement suggested that the noise could be induced by guided acoustic-wave Brillouin scattering.
Performance of Downsized High-power Optical Isolator Using Novel Glass With High Verdet Constant
Authors: Suzuki Futoshi , Furuyama Tadahito , Sato Fumio , Masuda Noriaki , Tanaka Katsuhisa
Published: September 2022

Magneto-optical glass with a large Verdet constant has been developed. The glass was utilized as a Faraday rotator in the optical isolator, and the downsizing of the isolator was achieved.
Waveguide integrated nonreciprocal optical routers for silicon photonics
Authors: Yan Wei , Qin Jun , Deng Longjiang , Bi Lei
Published: September 2022

We report a silicon integrated 5×5 nonreciprocal optical router based on the magneto-optical nonreciprocal phase shift effect. The device shows an asymmetric scattering matrix, with 16 dB isolation ratio and -22 dB crosstalk measured at 1551 nm wavelength.
Ultra-compact polarization-independent 3 dB power splitter in silicon
Authors: Zhang Aoxue , Xia Lipeng , Li Ting , Chang Chang , Zhou Peiji , Xu Xiaochuan , Zou Yi
Published: September 2022

We experimentally demonstrate a polarization-independent 3 dB power splitter (PIPS) assisted with subwavelength structure. The device possesses ultra-compact (1.2 µm × 2.62 µm) and polarization-independent features with an operating bandwidth over 50 nm (from 1540-1590 nm).
Sub parts-per-billion detection of ethane in a 30-meters long mid-IR Antiresonant Hollow-Core Fiber
Authors: Jaworski Piotr , Krzempek Karol , Kozioł Paweł , Wu Dakun , Yu Fei , Bojęś Piotr , Dudzik Grzegorz , Liao Meisong , Abramski Krzysztof
Published: September 2022

In this work we report on Wavelength Modulation Spectroscopy of ethane with sub parts-per-billion detection limit in the mid-IR spectral band aided with a 30-meters long self-fabricated all-silica Antiresonant Hollow-Core Fiber-based absorption cell.
Predicting Molecular Properties Using Photonic Chip-Based Machine Learning Approach
Authors: Lau J. , Zhang H. , Wan L. , Shi L. , Lee C. -K. , Kwek L. C. , Liu A. Q.
Published: September 2022

The intensive neural network architecture for molecules resulted in exponential growth in computation cost. Photonic chip technology offers an alternative platform with faster processing. We apply an optical neural chip to predict multiple quantum mechanical properties of molecules.
Self-Pulsing Nanobeam Photonic Crystal Laser
Authors: Delmulle Maxime , Bazin Alexandre , Massaro Loredana Maria , Sagnes Isabelle , Pantzas Kostantinos , Combrié Sylvain , Raineri Fabrice , De Rossi Alfredo
Published: September 2022

Self pulsing in the GHz range is achieved in a Semiconductor Nanolaser integrated on a Silicon Photonic Circuit whereby saturable absorption is obtained by selective optical puming.
Fine repetition rate tuning of harmonically mode-locked fiber laser using continuous wave injection
Authors: Ribenek V.A. , Stoliarov D.A. , Korobko D.A. , Fotiadi A.A.
Published: September 2022

We report on an optical injection as a new technique enabling fine one-by-one tuning of the pulse repetition rate (PRR) of a soliton harmonically mode-locked (HML) fiber laser built on the nonlinear polarization evolution (NPE).
Indirect Measurement of LP01 Effective Area Reduction in Bent Large-Core Step-Index Fibres Using Raman Scattering
Authors: Vukovic Natasha , Chan Jaclyn S. , Codemard Christophe A. , Zervas Michalis N.
Published: September 2022

We present an indirect measurement, using stimulated Raman scattering (SRS), of the fundamental mode effective area in several bent large-core step-index passive fibres used for industrial high-power high-brightness beam delivery. The increase of the SRS gain in bent fibres can lessen the benefit of such large-core fibres.
Modal Content and Confinement Loss Evolution with Surface Roughness Profile in Hollow-Core Inhibited Coupling Tube Lattice Fibers
Authors: Vasko K. , Melli F. , Rosa L. , Vincetti L. , Benabid F.
Published: September 2022

We investigate with a numerical model the confinement loss of the higher-order modes of hollow-core inhibited coupling tube lattice fibers as influenced by the power spectral distribution of transverse surface roughness in the glass tubes forming the fiber cladding.
SPM-enabled spectral selection in hollow-core fiber
Authors: Shi Zhuo , Chen Runzhi , Chang Guoqing
Published: September 2022

We propose and demonstrate that SPM-enabled spectral selection in a Xenon filled hollow-core fiber can produce broadly tunable femtosecond pulses with µJ-level pulse energy— representing one order of magnitude improvement compared with current implementations.
A Simple Way to Incorporate Loss When Modelling Multimode Entangled State Generation
Authors: Vendromin Colin , Dignam Marc M.
Published: September 2022

We prove that the light generated via spontaneous four-wave mixing in a set of M coupled, lossy cavities is an M-mode squeezed thermal state. The state generation and evolution is simply obtained by solving a set of 3M first-order differential equations, independent of the number of photons generated.
Single-pixel high-speed imaging through a multimode fiber
Authors: Liu Zhoutian , Li Dan , Yan Ping , Gong Mali , Xiao Qirong
Published: September 2022

While traditional high-speed cameras are generally bulky and based on pixel-array detectors, we propose a high-speed imaging scheme based on a multimode fiber using only one pixel. The frame rate of imaging reaches 60.3 Mfps.
Cr2+:ZnS laser crystal antireflection treatment by ultrashort laser pulses
Authors: Bushunov Andrey A. , Teslenko Andrei A. , Lazarev Vladimir A. , Sorokin E. , Tolstik N. , Sorokina I. T. , Tarabrin Mikhail K.
Published: September 2022

We report on antireflection microstructure fabrication on the working surface of the Cr2+:ZnS laser crystal by 200-fs laser treatment. This allows to increase transmittance in a broad range from 2 to 8 µm, approaching a maximum of 90.5% near 2.5 µm.
Visible Topological Lasing Based on a Polymer-cholesteric Liquid Crystal Superlattice
Authors: Wang Yu , Yang Donghao , Gao Shaohua , Zhang Xinzheng , Drevensek-Olenik Irena , Wu Qiang , Chemingui Marouen , Chen Zhigang , Xu Jingjun
Published: September 2022

Low-threshold topological lasing at visible wavelengths and with circular polarizations is demonstrated theoretically, and experimentally in a femtosecond-laser-written micron-sized polymer-cholesteric liquid crystal composite structure by manipulating the topological mini-bands based on the Su-Schrieffer-Heeger model.
Wide-band Tunable Laser via Integration of High Precision Wavelength Spacing DFB Lasers
Authors: Sun Zhenxing , Su Zhirui , Xiao Rulei , Liu Kui , Chiu Yi-Jen , Chen Xiangfei
Published: September 2022

We report a tunable laser by integrating sixteen DFB lasers with high wavelength-spacing uniformity. Wavelength deviations of 89.3% DFB lasers are within ±0.2 nm, enabling high overall yield and low tuning range of each laser.