bluuebunny/crossref_metadata_2025 huggingface dataset:
160 Gb/s true physical random bit generation using broadband, high-entropy semiconductor laser chaos
Authors: Tseng Chin-Hao , Funabashi Ryo , Kanno Kazutaka , Uchida Atsushi , Wei Chia-Chien , Hwang Sheng-Kwang
Published: September 2022

This study investigates broad-band, high-entropy chaos generation using a semiconductor laser subject to intensity-modulated optical injection. The proposed chaotic source can be used as a 2-bit true random bit generator with a rate of 160Gb/s.
LIPSS surface functionalization using beam shaping for industrial medical applications
Authors: Patars Jérôme , Cangueiro Liliana , Blanchy Marilys , Sipos Konstantin , Ramos-de-Campos J.A. , Bruneel David
Published: September 2022

We industrialized the functionalization of metal surfaces with LIPSS using beam shaping techniques, for application on two and three-dimensional medical implants. Osteoblasts adhered and mineralized favorably and controllably onto the produced surfaces.
Non-Line-of-Sight Imaging Using a Fractal Superconducting Nanowire Single-Photon Detector
Authors: Feng Yifan , Cui Xingyu , Meng Yun , Yin Xiangjun , Zou Kai , Hao Zifan , Yang Jingyu , Hu Xiaolong
Published: September 2022

We demonstrate non-line-of-sight imaging at the wavelength of 1560 nm using a high-efficiency, h igh-timing-resolution f ractal s uperconducting n anowire single-photon detector. Light-cone-transform algorithm is used to reconstruct the shape of the hidden objects.
A self-validated detector for characterization of quantum network components
Authors: Rahmouni Anouar , Gerrits Thomas , Migdall Alan , Slattery Oliver , Shaw Ping-Shine , Rice Joseph P.
Published: September 2022

We are developing a nearly polarization-independent, low-cost optical trap detector between 1000 nm and 1550 nm for optical power measurements. A NIST-traceable optical power calibration of this trap detector showed a promising result.
Quantum Holograms with Quantum Metasurfaces
Authors: Lloyd Peter Nicholas Thomas , Kachko Shalom , Bekenstein Rivka
Published: September 2022

We develop quantum holograms by analyzing the light scattered from quantum metasurfaces made out of strongly interacting atoms for applications such as the non-destructive probing of many-body atomic state dynamics.
Theory of topological lasers and of their coherence
Authors: Carusotto Iacopo , Amelio Ivan , Loirette-Pelous Aurelian , de las Heras Alberto Muñoz , Seclì Matteo
Published: September 2022

We present our recent advances in the building of a theory of topological laser operation. The coherence properties of the emission are characterized using statistical mechanics concepts, the fundamental limitations identified, and robustness against fabrication disorder highlighted.
Phase-stable ultrafast MIR sources for high harmonic generation in solids
Authors: Ishii Nobuhisa , Kaneshima Keisuke , Saito Nariyuki , Xia Peiyu , Kanai Teruto , Kurihara Takayuki , Mizuno Tomoya , Kanda Natsuki , Matsunaga Ryusuke , Itatani Jiro
Published: September 2022

We develop Ti:sapphire- and Yb-laser pumped mid-infrared sources with stable carrier-envelope phases using LiGaS2 (LGS), KTiOAsO4 (KTA) and GaSe crystals. These light sources are used to explore the physics of high harmonic generation in solids.
Nonlinear topological protection of spontaneous symmetry breaking in a driven Kerr resonator
Authors: Coen Stéphane , Xu Gang , Quinn Liam , Garbin Bruno , Oppo Gian-Luca , Goldman Nathan , Murdoch Stuart G. , Erkintalo Miro , Fatome Julien
Published: September 2022

A two-mode Kerr cavity with a π-phase defect exhibits a virtual Möbius topology and enables spontaneous symmetry breaking with unprecedented robustness. Experiments performed with homogeneous and localized states confirm our predictions.
3 μm Wavelength OPCPA for Soft X-ray Generation
Authors: Carlson D. , Hettel W. , Morrill D. , Lesko D. , Wu T.-H. , Yu F. , Diddams S. , Kapteyn H. , Murnane M. , Hemmer M.
Published: September 2022

We report a robust, 3µm wavelength OPCPA system with sub-mJ pulse energies at 1kHz repetition rate. The use of high-pressure hollow-core waveguides, both regular and anti-resonant, provide a pathway for phase-matched soft X-ray generation.
Two-octave mid-infrared supercontinuum pumped by a 4.5 µm femtosecond fiber source
Authors: Tiliouine I. , Granger G. , Leventoux Y. , Jimenez C. E. , Melek J. , Couderc V. , Février S.
Published: September 2022

We report on the generation of 35 kW, 180 fs pulses above 4 μm by soliton self-frequency shift from a 2 µm fiber-based laser and their application to the generation of two-octave mid-infrared supercontinuum in chalcogenide fiber.
1840-nm femtosecond thulium fiber laser system for label-free third-harmonic generation microscopy
Authors: Xu L. , Xu D. , Bourdakos K. N. , Johnson P. B. , Crisford A. , Abughazaleh I. , Srisamran P. , Fu Q. , Mahajan S. , Richardson D. J.
Published: September 2022

We report an all-fiberized 1840-nm mode-locked thulium fiber laser seeded chirped-pulse amplification system delivering 416 fs pulses with maximum energy of 105 nJ. Label-free biological imaging is demonstrated by using the laser through third-harmonic generation microscopy.
Space-Time Superoscillations in Structured Light Pulses
Authors: Shen Yijie , Papasimakis Nikitas , Dennis Mark R. , Zheludev Nikolay I.
Published: September 2022

We show that band-limited light fields exhibit superoscillations simultaneously in space and time, which oscillate faster that the highest harmonics of their spatial and temporal frequency spectra, and verify such behavior in supertoroidal structured pulses.
A Self-Supervised Deep Model for Focal Stacking
Authors: Du Weizhi , Fu Qichen , Huang Zhengyu
Published: September 2022

We propose to train a self-supervised autoencoder to extract image features and fuse focal stack images. Numerical experiments show the proposed method achieves better fusion performance, compared to traditional fusion method using Laplacian operator.
Direct Distributed Analysis of Nonlinear Inter-Modal Forward Scattering in Polarization Maintaining Fibers
Authors: Sharma Kavita , Zehavi Elad , Diamandi H. Hagai , Bashan Gil , London Yosef , Zadok Avi
Published: September 2022

Direct, distributed analysis of forward scattering is demonstrated for the first time in any optical medium, using inter-modal nonlinear coupling in polarization maintaining fibers. Local spectra of forward Brillouin scattering and Kerr effect are resolved.
Arc-Induced Core Expansion in Visible-Light Multicore Fibers
Authors: Govdeli Alperen , Azadeh Saeed Sharif , Stalmashonak Andrei , Poon Joyce K. S. , Sacher Wesley D.
Published: September 2022

Using a fusion splicer, we demonstrate tapered core expansion at the facet of a custom visible-light 16-core fiber. Across all cores, the average mode-field diameter was expanded from 3.1µm to 8.9µm at λ=488nm.
Femtosecond Filament Coupled with Structured Light for Free Space Optical Communication
Authors: Reza Saad Bin Ali , Wang Tianhong , Buldt Finn , Bassène Pascal , N’Gom Moussa
Published: September 2022

We created a 4-bit communication channel for free-space optical communication (FSO) through a segmented space division multiplexing method using structured light coupled with a femtosecond-laser induced filament.
All-optical nonreciprocal response in a ring resonator integrating transition metal dichalcogenides
Authors: Kawaguchi Yuma , Guddala Sriram , Komissarenko Filipp , Kiriushechkina Svetlana , Vakulenko Anton , Chen Kai , Alù Andrea , Menon Vinod M. , Khanikaev Alexander B.
Published: September 2022

The photoinduced nonreciprocity was experimentally observed in WS2 monolayer pumped by circularly polarized light. Based on this, we propose a theoretical model of nonreciprocal optical ring resonator integrating valley polarized WS2 monolayer.
Super Agile High Resolution Spectrum Analyzer by Sampled Heterodyne System
Authors: Takayasu Hideto , Otsuka Shuhei , Sakamoto Takahide
Published: September 2022

We demonstrated a sampled heterodyne system that enables wide-bandwidth and high- resolution spectrum measurement with agile scanning despite of using a low-speed DSP. 5-GHz high-bandwidth spectral measurement with 0.006-pm resolution, 0.01-ms scanning speed was achieved.
The Effects of Radiation on Superconducting Nanowire Electronics
Authors: Sorenson Andrew M. , Zhou Tony X. , Berggren Karl K.
Published: September 2022

The sensitivity of superconducting nanowire electronics in high radiation environments is not well known. We present numerical simulations of the radiation effects and errors caused by exposure to these conditions.
Wideband Ultra-Flat Spectral Enhancement by Cascaded Phase Modulation on Frequency Comb Generated from Mach-Zehnder Modulator
Authors: Ishijima Tatsuki , Sakamoto Takahide
Published: September 2022

We demonstrated efficient spectral enhancement of comb generator where cascaded phase-modulation was applied to comb generated from Mach-Zehnder Modulator; additionally enhancing spectra keeping spectral flatness without increasing modulators cascade scale. 25×25-GHz spectrum was experimentally generated.
Quantum-Optimal Discrimination of Multiple Objects in Sub-Diffraction Incoherent Imaging
Authors: Grace Michael R. , Guha Saikat
Published: September 2022

We derive the quantum limit for discriminating between M≥2 incoherent, diffraction-limited objects and identify a quantum-optimal measurement that can distinguish two orders of magnitude more objects than direct imaging with no additional error.
The choice of materials for post-compression of high-peak-power long-wave infrared pulses
Authors: Polyanskiy Mikhail N. , Pogorelsky Igor V. , Babzien Marcus , Kupfer Rotem , Palmer Mark A.
Published: September 2022

We report the initial results of a systematic measurement of nonlinear refraction and absorption of infrared materials at 9.2 µm and their application to the development of a post-compression scheme for long-wave infrared pulses.
Numerical simulation of over-intensities caused by compression grating phase modulations of the PETAL facility
Authors: Le Camus Arthur , Coïc Hervé , Blanchot Nathalie , Bouillet Stéphane , Lavastre Eric , Mangeant Mélanie , Rouyer Claude , Néauport Jérôme
Published: September 2022

Optics laser damage in high intensity short pulse laser facilities is a major limitation to performance upgrade. We report on the impact of gratings phase modulation on laser-induced damage using high-resolution measurements and Miró modeling.
Sensitive Control of Broad-area Semiconductor Lasers by Cavity Geometry
Authors: Kim Kyungduk , Bittner Stefan , Jin Yuhao , Zeng Yongquan , Guazzotti Stefano , Hess Ortwin , Wang Qi Jie , Cao Hui
Published: September 2022

We experimentally demonstrate that a slight modification of the Fabry-Perot cavity geometry has a profound impact on lasing performance. The near-planar cavity laser supports hundreds of transverse lasing modes with directional and stable output.
Ultra-broadband Optical Frequency Doubler at Telecom Wavelength
Authors: Jornod Nayara , Jankowski Marc , Xin C. J. , Mishra Jatadhari , Langrock Carsten , Yu Mengjie , Lončar Marko , Fejer Martin M.
Published: September 2022

We present dispersion-engineered PPLN nanowaveguides with a geometry designed for broadband frequency doubling at telecom wavelengths with low pump energy. We realize a 45-nm-broad transfer function in a 5-mm-long crystal pumped by fs-pulses.
Practical Limits to Conversion Efficiency in Kerr Microresonator Optical Parametric Oscillators
Authors: Stone Jordan R. , Moille Gregory , Lu Xiyuan , Srinivasan Kartik
Published: September 2022

We numerically and theoretically explore the pump-to-signal conversion efficiency of Kerr microresonator optical parametric oscillators. We identify mode competition and cross-phase modulation-induced modulation instability as parasitic nonlinear processes that curb efficiency.
Polarization Sensitive Terahertz Bolometer
Authors: Khan Mohammad Wahiduzzaman , Boyraz Ozdal
Published: September 2022

We present a novel uncooled terahertz bolometric sensor based on plasmonic absorbers and phase-changing transducer beams. The device facilitates simultaneous sensing of incident radiation intensity and polarization by utilizing polarization-dependent plasmonic field enhancement.
Validation of Si3N4 Integrated Photonics Platform for Low-Loss Operation at Wavelengths up to 2.7 μm
Authors: Ojanen Samu-Pekka , Viheriälä Jukka , Zia Nouman , Guina Mircea
Published: September 2022

The performance of waveguide components realized using 800-nm thick Si3N4 photonic integrated platform is assessed for operation at 2.6–2.7 μm. Propagation losses as low as 0.67 dB/cm and bend losses of 0.017 dB for 50 μm radius of curvature were measured at 2.68 μm. Moreover, a shape-optimized 1x2 Y-branch with a low loss of 0.1 dB is demonstrated. Finally, a tunable ring resonator with a free-spectral range of 5.16 nm and a tuning factor of 13.25 nm/W is reported. These low-loss building blocks open an attractive perspective for the fabrication of high-performance hybrid-integrated laser required in sensing applications.
Integrated All-Optical Controlled Amplitude Modulator Using Laser Delivered Signals
Authors: Idres Samer , Fallahpour Ahmad , Willner Alan E. , Habif Jonathan , Hashemi Hossein
Published: September 2022

We experimentally demonstrate integrated all-optical controlled amplitude modulation. Range of 0.25 mW control power is used to tune 15 dB of the output optical intensity. The design is fabricated in a commercial silicon photonics process.
Programmable Multimode Interference in a VIS-NIR Photonics Platform
Authors: Larocque Hugo , Dong Mark , Leenheer Andrew , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: September 2022

We recently introduced an architecture for universal optics in a multimode waveguide. Here we implement its essential building blocks in piezoelectrically programmable photonic integrated circuits.
Low-Loss, Narrowband Integrated Si3N4 Pulse Shaper for Quantum Photonic Applications
Authors: Cohen Lucas M. , Myilswamy Karthik V. , Lingaraju Navin B. , Weiner Andrew M.
Published: September 2022

We demonstrate an optical pulse shaper in silicon nitride with spectral resolution on the order of a few GHz and line-by-line phase control for potential applications in quantum communications and networking.
Silicon Photonic Bandpass Filters with Polarization Diversity
Authors: Singh Anshuman , Chalupnik Michelle , Soltani Mohammad
Published: September 2022

We demonstrate polarization diverse silicon photonic bandpass filters at telecommunication wavelengths, with high out-of-band rejection (>40 dB), low insertion loss, and lower architecture complexity. Such filters are critical for on-chip wavelength (de)multiplexing in classical/quantum photonics.
Ultra-Short Pulse Non-Classical Light Emitters Utilizing Multiple Wide Quantum Wells
Authors: Torcheboeuf Nicolas , Mitev Valentin , Balet Laurent , Renevey Philippe , Krakowski Michel , Resneau Patrick , Larrue Alexandre , Legoec Jean-Pierre , Robert Yannick , Vinet Eric , Garcia Michel , Parillaud Olivier , Gerard Bruno , Boiko Dmitri L.
Published: September 2022

We report a novel ultra-short pulse emitter utilizing transient charge carrier behavior and cooperative emission in multiple wide-quantum-well heterostructures. Its optical cavity reassembles a tandem-cavity laser diode with electroabsorber section surrounded by two gain sections. With selection of the electrical pump pulse and the absorber voltage, due to quantum-confined Stark effect in wide quantum well, it is possible to spatially pull the electrons and holes apart from each other. When the pump bias is removed, an ultra-short pulse due to cooperative recombination of electrons and holes emerges. We demonstrate that such cooperative superradiance produces non-classical high-order correlations in the emitted light while Wigner function of the state reveals quantum oscillations.
Experimental Generation of Cluster-state Entanglement by Phase Modulation of the Quantum Optical Frequency Comb
Authors: Zhu Xuan , Chang Chun-Hung , González-Arciniegas Carlos , Pe’er Avi , Pfister Olivier
Published: September 2022

We report on the progress of experimental cluster-state generation in the optical frequency comb of a single, phase-modulated optical parametric oscillator.
Ultra Large Mode Area All-Solid Ytterbium-Doped Antiresonant Fiber for 976 nm Lasing
Authors: Goel Charu , Yoo Seongwoo
Published: September 2022

We propose and investigate an all-solid ytterbium-doped antiresonant fiber design that suppresses four-level lasing wavelengths using high confinement loss (> 20 dB/m) in resonant band, to achieve three-level lasing with remarkably high efficiency (> 85%).
Design and Operation of Silicon Monolithic 1 × 4 Wavefront-control-type Wavelength Selective Switch
Authors: Nakamura Fumi , Suzuki Keijiro , Ikeda Kazuhiro , Namiki Shu , Kawashima Hitoshi , Tsuda Hiroyuki
Published: September 2022

We designed and fabricated a 200-GHz-spacing, 16-channel, 1 × 4 silicon monolithic wavelength selective switch (WSS), adopting a wavefront control configuration with no waveguide crossings. Its basic switching operations were demonstrated with four wavelength channels.
Highly-confined, low-loss visible photonics using foundry-fabricated Silicon Nitride circuits
Authors: Sundaram Vijay Soorya Shunmuga , Manfreda-Schulz Evan , Stievater Todd H. , Tyndall Nathan F. , Palone Thomas , Deenadayalan Venkatesh , Tison Christopher , Smith Zachary , Hucul David , Howland Gregory A. , Fanto Michael L. , Preble Stefan F.
Published: September 2022

In this paper, we present CMOS-foundry-fabricated silicon nitride photonic structures at barium emission wavelengths - 493nm and 650nm. High mode-confinement, low propagation losses, and inverse-designed 3dB splitters are demonstrated.
Electro-Optical Biosensor Based on Embedded Graphene Capacitor
Authors: Portes Ary V. R. , Martins Ana J. L. , Ramirez Jhonattan C.
Published: September 2022

In this work, an interferometric polymer-based electro-optical biosensor with an embedded double monolayer graphene capacitor is presented. Because of the Fermi level modulation, absorption changes of 129dB/mm and bulk sensitivity of 2828nm/RIU respectively, were observed.
Vibration Sensing with a Hybrid Electronically Addressable Random Laser
Authors: Correia Marlon M. , Margulis Walter , Gomes Anderson S. L. , von der Weid Jean Pierre
Published: September 2022

The operation of a Hybrid Electronic Addressable Random laser is analyzed. The laser operates as a ϕ-OTDR distributed vibration sensor in a transform-limited mode-locked regime with 41 MHz FWHM bandwidth and <7-kHz mode linewidth.
Electro-Optic Spectral Switching and Q-switching in a Dual-Wavelength Nd:YVO4 Laser Based on Aperiodically Poled Lithium Niobate
Authors: Lu Chi-Meng , Deng Lin-Ming , Pham Tien-Dat , Chung Hung-Pin , Tseng Quan-Hsiang , Chen Yen-Hung
Published: September 2022

We demonstrate a novel dual-wavelength Nd:YVO4 laser where either or both of its emission lines can be selected and Q-switched electro-optically using a domain-engineered LiNbO3. Electro-optic switching among five wavelengths from the system is observed.
Beyond 100 Gbit/s per Wavelength PAM-8 Transmission over 25 km Using Low Complexity Equalization
Authors: Costas Marcos Troncoso , Reza Ahmed Galib , Browning Colm , Otero Francisco Diaz , Barry Liam
Published: September 2022

We demonstrate high-speed PAM-8 transmission over 25 km SMF for access networks using an MZM. BERs below 3.8e-3 were obtained at 108 Gbit/s and 120 Gbit/s using a linear and a simplified Volterra equalizer respectively.
Sub 150-fs mJ-level Yb:CALYO Diode Pumped Regenerative Amplifier
Authors: Petrov Lyuben S. , Georgiev Kaloyan , Velkov Dimitar , Trifonov Anton , Xu Xiaodong , Xu Jun , Buchvarov Ivan
Published: September 2022

We report Yb:CaYAlO4 (Yb:CYA) regenerative amplifier providing 135 fs output pulses with 1 mJ energy and 1 kHz repetition rate at 1040 nm. Single Yb:crystal in TEM00 resonator was pumped by a diode laser.
Polarization splitting dual-band grating coupler for wavelength multiplexing at 1310 nm and 1550 nm
Authors: Cheng Guanglian , Yi Qiyuan , Li Qiyuan , Yan Zhiwei , Xu Fanglu , Shen Li , Wang Jian
Published: September 2022

We propose a polarization splitting dual-band grating coupler with minimum losses of 2.80 dB and 4.62 dB at O and C-band. The fabricated device has maximum coupling efficiencies of -4.70 dB and -8.45 dB, respectively.
Pre-Compensating the Shifted Power-to-Bias Response of Si Waveguide Modulator Induced by High-Speed Encoding
Authors: Lin Da-Jhong , Chung Kuo-Fang , Huang Ding-Wei , Cheng Chih-Hsien , Shih Tien-Tsorng , Lin Gong-Ru
Published: September 2022

The shifted power-to-voltage response and reduced on/off extinction ratio observed in uncooled Si waveguide intensity modulator can be pre-compensated with offsetting the DC bias to recover the bit-error-ratio from 8.3×10-3 to 9.4×10-9 under 60-Gbit/s NRZ-OOK.
High-speed PAM4 Transmission Using a 12.5G Class DML Enabled by Low Complexity DSP
Authors: Costas Marcos Troncoso , Reza Ahmed Galib , Browning Colm , Otero Francisco Diaz , Barry Liam
Published: September 2022

We demonstrate 90 Gbit/s PAM4 transmission for intra-data center links using a 1540-nm DML. BER values below 3.8e-3 were achieved after 1 km of SMF at 0 dBm using low complexity eye-skew compensation and equalization.
Ultralow Energy van der Waals InSe PN junction heterostructure photodetector for NIR applications
Authors: Dong Chaobo , Patil Chandraman , Wang Hao , Krylyuk Sergiy , Davydov Albert , Dalir Hamed , Sorger Volker J.
Published: September 2022

We show a self-driven indium selenide (InSe) p-n heterojunction photodetector with a threefold increase in responsivity at 980 nm over a photoconductor detector based on p- or n-doped regions.
Longitudinal to Transversal Conversion of Mode-Locked States in an Empty Optical Cavity
Authors: Zwilich Michael , Schepers Florian , Fallnich Carsten
Published: September 2022

Transverse mode-locking is achieved by matching the transverse mode spacing of an optical cavity to the spacing of phase-locked longitudinal modes of an incident beam.
Breaking the Q-S limitation between the fundamental and high order modes on multimode silicon photonic crystal nanobeam cavity
Authors: Wang Chao , Chen Shuo , Han Zhe , Wang Jinzhi , Gou Zixing , Nie Tongyu , Tian Huiping
Published: September 2022

We theoretically demonstrated breaking the quality factor-sensitivity (Q-S) limitation between the fundamental and higher order modes on a multimode silicon photonic crystal nanobeam cavity. Ultra-strong side-surface localizations benefited high-Q and high-overlap-integration resonances were achieved, simultaneously.
Ultra-wide soliton access window in an AlN microresonator
Authors: Afridi Adnan Ali , Weng Haizhong , Liu Jia , Li Jing , McKenna Robert , McDermott Michael , Lu Qiaoyin , Guo Weihua , Donegan John F.
Published: September 2022

We demonstrate an octave spanning Kerr soliton, with widest soliton access window of 126 pm (~16 GHz) in an AlN microresonator using slow pump tuning at temperature of 16 °C and 320 mW pump power.
Probabilistically Constellation Shaped Kramers-Kronig Detection Enabling Reduced CSPR Condition
Authors: Yue Lei , Liu Yuyang , Tan Ping , Zhao Shen , Shen Yi , Zhou Kaijun
Published: September 2022

We propose to relax the requirement of carrier-to-signal power ratio in Kramers-Kronig receiver by probabilistically shaping the constellation to avoid destroying minimum phase condition. About 1.5-dB reduction in optimal carrier-to-signal power ratio are observed.
Soliton microcombs in ytterbium-doped lithium-niobate microrings
Authors: Yang Chen , Hao Zhenzhong , Luo Qiang , Yang Shuo , Zhang Ru , Jia Di , Ma Rui , Yu Xuanyi , Bo Fang , Kong Yongfa , Zhang Guoquan , Xu Jingjun
Published: September 2022

Soliton microcombs were first demonstrated on a Z-cut ytterbium-doped lithium niobate microring. The comb has a spectrum ranging from 1480 nm to 1660 nm and a repetition rate of 197.79 GHz.
Widely separated optical parametric oscillation in Chalcogenide microrings
Authors: Zhao Jiaxin , Wang Zifu , Xia Di , Wu Jiayue , Li Yufei , Luo Liyang , Zhang Bin , Li Zhaohui
Published: September 2022

We provide a novel approach to experimentally achieve widely-separated χ(3) OPO ranging from 1250nm to 2100nm in chalcogenide microrings pumped at anomalous dispersion. Our approach realized robust and widely-separated OPO generation on-chip.
Isolation of Phase Object in Edge-Enhanced Microscopy with q-plate under Tilted Laser Illumination
Authors: Zangpo Jigme , Kawabe Tomohiro , Kobayashi Hirokazu
Published: September 2022

We propose and numerically demonstrate a method to isolate the phase edge from the amplitude-phase object by employing 4 f system with a q-plate filter that uses multiple tilted lights to eliminate the amplitude edge.
Generation of spatio-temporal beams using orbital angular degrees of freedom
Authors: Ye Jiacheng , Liu Yuzhou G. N. , Wei Yunxuan , Hemmatyar Omid , Christodoulides Demetrios N. , Khajavikhan Mercedeh
Published: September 2022

We demonstrate an OAM microring laser array to generate spatio-temporal beams based on the superposition of different orbital angular momenta in the far-field.
Real-time reaction monitoring of liquids based on monolithic mid-IR sensors
Authors: Hinkov Borislav , Pilat Florian , David Mauro , Marschick Georg , Arigliani Elena , Souza Patricia L. , Schwaighofer Andreas , Lux Laurin , Baumgartner Bettina , Ristanić Daniela , Schwarz Benedikt , Detz Hermann , Andrews Aaron M. , Lendl Bernhard , Strasser Gottfried
Published: September 2022

We present a fingertip-sized mid-IR lab-on-a-chip for selective and sensitive time-resolved spectroscopy of liquids. Breakthrough beyond state-of-the-art operation of our monolithic sensor is demonstrated by real-time in-situ reaction-monitoring of conformational changes in a protein solution.
Dual-Comb Biosensing for Rapid Detection of SARS-CoV-2
Authors: Miyamura S. , Oe R. , Nakahara T. , Okada S. , Kajisa T. , Taue S. , Tokizane Y. , Minamikawa T. , Yano T. , Otsuka K. , Sakane A. , Sasaki T. , Yasutomo K. , Yasui T.
Published: September 2022

We demonstrated rapid detection of SARS-CoV-2 nucleocapsid protein antigen by dual-comb biosensing with surface modification of its corresponding antibody. A sensitivity close to that of RT-PCR was achieved, thanks to the use of active–dummy temperature compensation.
Storage of 147 Temporal Modes of Telecom-band Single Photon with Fiber-pigtailed Er3+: LiNbO3 Waveguide
Authors: Zhang Xue-Ying , Jing Bo , Zhang Bin , Li Hao , Wei Shi-Hai , Li Cheng , Liao Jin-Yu , Deng Guang-Wei , Wang You , Song Hai-Zhi , You Li-Xing , Chen Feng , Guo Guang-Can , Zhou Qiang
Published: September 2022

Quantum storage of 147 temporal modes at telecom-band is experimentally demonstrated by using a fiber-pigtailed laser-written Er3+: LiNbO3 waveguide. Memory efficiency of 2.00±0.09 % is achieved with storage time up to 100 ns.
Tunable Threshold in VO2-based Photonic Devices Enabled by Defect Engineering
Authors: Wan Chenghao , Hafermann Martin , Park Tae Joon , Zhang Zhen , Xiao Yuzhe , Mei Hongyan , Ramanathan Shriram , Ronning Carsten , Kats Mikhail A.
Published: September 2022

Using ion implantation, we engineered tunable thresholds of optical switches that incorporated frequency-selective surfaces (FSSs) with thin-film VO2. We also used a focused ion beam to selectively control any passband of an FSS-VO2 optical switch.
Strong exciton-photon-spin coupling in a van der Waals antiferromagnet
Authors: Dirnberger Florian , Bushati Rezlind , Datta Biswajit , Kumar Ajesh , MacDonald Allan H. , Baldini Edoardo , Menon Vinod M.
Published: September 2022

A hitherto unobserved three-body coupled composite of excitons, photons and spins is created by strong light-matter coupling in a van der Waals magnetic insulator hosting spin-correlated excitonic excitations [1]. (c) 2022 The Authors(s)
Arbitrary Space-time Wave Packet Synthesis
Authors: Chen L. , Zhu W. , Huo P. , Song J. , Lezec H. J. , Xu T. , Agrawal A.
Published: September 2022

We demonstrate arbitrary spatiotemporal synthesis of ultrafast optical transients by leveraging the multifunctional control of light at the nanoscale offered by metasurfaces, enabling ready-synthesis of complex space-time wave packets over an ultrawide bandwidth.
Interactions of polar quantum systems with light
Authors: Słowik Karolina , Gładysz Piotr , Scala Giovanni , Wcisło Piotr , Pepe Francesco , Facchi Paolo , Pascazio Saverio
Published: September 2022

We discuss how spatial asymmetry of quantum systems quantified in terms of permanent dipole moments influences their emission properties in different light-matter interaction regimes. Applications for spontaneous emission suppression and coherent emis-sion are explored.
Deterministic Creation of Single Nitrogen-Vacancy Center in Diamond Using Femtosecond Laser Writing
Authors: Yoon Taewoong , Cha Myungjun , Park Sungjun , Kim Dohun , Choi Hyunyong
Published: September 2022

We report a deterministic creation of color centers in diamond by employing single-shot laser writing. After thermal annealing treatment, we have confirmed that the optical emission and spin coherence consist with the conventional single NV.
Polarization Quantum State Tomography With a Single Liquid Crystal Variable Retarder
Authors: Johnson Spencer , Floyd John , Ortiz Kelsey , Kwiat Paul
Published: September 2022

We present a method of performing polarization-based quantum state tomography with a single liquid crystal variable retarder per photon, allowing for full state characterization to be performed in applications where space and power are limited.
Using Heralded Spectrometry to Measure the Biexciton Binding Energy of an Individual Quantum Dot
Authors: Tenne Ron , Lubin Gur , Ulku Arin Can , Antolovic Ivan Michel , Burri Samuel , Karg Sean , Yallapragada Venkata Jayasurya , Bruschini Claudio , Charbon Edoardo , Oron Dan
Published: September 2022

Spectrometry of a quantum state of light is a fundamental challenge with practical implications. Here, we demonstrate how such a technique can super-resolve the exciton and biexciton energies in a single quantum dot at room temperature.
Persistent Beating Phenomenon in Coupled Non-Degenerate Parametric Oscillators
Authors: Ben-Ami Shai , Aharonovich Igal , Pe’er Avi
Published: September 2022

We explore experimentally synchronization and persistent beating dynamics in coupled non-degenerate parametric oscillators. We demonstrate that synchronization is completely prevented due to mode competition, which is unique to non-degenerate oscillators.
Nested Spontaneous Symmetry Breakings of Light in Kerr Ring Resonators
Authors: Hill Lewis , Haye Pascal Del , Oppo Gian-Luca
Published: September 2022

We show multiple nested spontaneous symmetry breakings in a ring resonator with two counter-propagating light waves. The results could be of interest for telecom systems, nonlinear polarization control, soliton frequency combs, and all-optical oscillators.
Non-local Kerr-lensing breaks the spatial symmetry in mode-locked lasers
Authors: Parshani Idan , Bello Leon , Meller Mallachi-Elia , Pe’er Avi
Published: September 2022

We demonstrate experimentally symmetry breaking in a linear cavity mode-locking laser due to a non-local Kerr-lens, which is expressed in deviation from the soliton model. The effect is backed by numerical simulation with quantitative agreement.
Radiation-induced Negative Nonlinear Absorption in Glass and Sapphire
Authors: Morgan Bryan W. , Van Zile Matthew , Sabharwall Piyush , Burger Milos , Jovanovic Igor
Published: September 2022

We report the observation of negative nonlinear absorption in gamma and neutron-irradiated quartz glass, BK7 glass, and sapphire. Thermal annealing is effective in restoring the pre-irradiation optical properties.
Exploiting engineered second- and third-order nonlinear mixing in tailoring supercontinuum generation in LiNbO3 waveguides
Authors: Lauria Simone , Saleh Mohammed F.
Published: September 2022

We investigate the interplay between the second- and third-order nonlinearities in lithium-niobate waveguides with uniform and linearly-chirped poling. The poling-period is exploited as an additional degree-of-freedom to tailor the output spectrum in an unprece-dented way.
Optically Tunable Third Harmonic Generation in a Conducting Oxide Film
Authors: Saha Soham , Diroll Benjamin T. , Ozlu Mustafa Goksu , Kudyshev Zhaxylyk , Schaller Richard D. , Kildishev Alexander , Shalaev Vladimir M. , Boltasseva Alexandra
Published: September 2022

We demonstrate actively tunable third harmonic generation (THG) in zinc oxide, increasing THG by 600%. This is done using an interband pump, generating free carriers to increase Kerr nonlinearities, and enhancing fields through permittivity reduction.
Temporal mode shaping of single photons from a solid-state quantum emitter
Authors: Kim Kyu Young , Richardson Christopher J. K. , Waks Edo , Kim Je-Hyung
Published: September 2022

Through multi-exciton cascade recombination in a quantum dot and engineered Purcell effect in a photonic crystal cavity, we demonstrate the single-photon emission with Gaussian-like spatial and temporal modes and temporally purify single photons from background emission.
Kerr soliton formation in nondegenerate phase-conjugate resonators
Authors: Zhao Jie , DiMario Matthew , Zhou Zhifan , Anderson B. E. , Jones Kevin M. , Lett Paul D.
Published: September 2022

Phase conjugation is a unique phenomenon that readily mimics Stokes’s principle of time reversal. We report, for the first time, experimental observations of the formation of Kerr solitons in a phase-conjugate resonator.
Broadband amplitude, phase and polarization modulation by geometric phase metasurface
Authors: Zhang Jinrun , Zeng Jinwei , Wang Jian
Published: September 2022

We experimentally demonstrate a geometric metasurface enabled by the parallel-tasking method, which can simultaneously and independently modulate the amplitude, phase and polarization profile of spatial light in broadband.
Active Switching of Electromagnetic Induced Transparency in Ge2Sb2Te5 Tunable Terahertz Metamaterial
Authors: Mishra Prateek , Srivastava Vibhu , Sunny Sunny
Published: September 2022

We demonstrate active switching of EIT in a THz metasurface comprising of phase change material/gold patterns. Dynamic interchange between EIT and dipolar resonance due to ultrafast phase-transition of Ge2Sb2Te5 promises applications in slow light devices.
Einstein-Laub and Lorentz Optical Force Densities with a Planar Interface
Authors: Behnke Adam W. , Pollei Thomas J. , Web Kevin J.
Published: September 2022

Realizing optomechanical devices from nanostructured media requires a spatially-dependent force density model in the material. The general Einstein-Laub force density is shown to be consistent with a boundary description, thereby completing a needed analytic description.
High power burst mode laser for compact enhancement cavities
Authors: Blanc Frédéric , Bonamis Guillaume , Jacob Côme , Chiche Ronic , Courjaud Antoine , Dupraz Kevin , Martens Aurélien
Published: September 2022

We report on an ultrafast laser delivering 10mJ burst energy at a repetition rate of 10kHz, with a GHz intraburst repetition rate. The low phase noise is compatible with coupling into high-finesse enhancement cavities.
Accidental BIC in All-Dielectric Nano-Sized Tri-Air holes Silicon Disk Resonator
Authors: Sharma Shubhanshi , Lahiri Basudev , Varshney Shailendra K.
Published: September 2022

We report a high-quality factor (~ 1800 and 348) in a compact all-dielectric three hollow-channeled Si disk resonator that multiple accidental bound states in the continuum for normally incident x polarized light.
Variance-Based Sensitivity Analysis of Λ-type Quantum Memory
Authors: Shinbrough Kai , Lorenz Virginia O.
Published: September 2022

We examine the sensitivity of Λ-type optical quantum memories to experimental fluctuations using a variance-based analysis. The results agree with physical interpretations of quantum memory protocols, and are important for practical implementations.
Anomalous Dips in Reflection Spectra of Polymers Deposited on Plasmonic Metals
Authors: Chowdhury Md G. R. , Shorter A. , Rout S. , Noginov M. A.
Published: September 2022

Anomalous dips in reflection spectra of optical polymers deposited on plasmonic metals have been observed and discussed in terms of singularity of surface plasmon polaritons (SPP’s) in the ultraviolet (UV) part of the spectrum.
Interplay of Quantum and Classical Dynamics in a Generalized Dicke Model
Authors: Stitely Kevin , Masson Stuart , Giraldo Andrus , Krauskopf Bernd , Parkins Scott
Published: September 2022

We investigate signatures of classical nonlinear behavior in the vicinity of a superradiant quantum phase transition in a generalized Dicke model. Classical multistable behavior is signalled by spontaneous tunneling between macroscopic quantum states.
5-Level Model for D2-Line Absorption Spectrum in Thermal Rb Vapor
Authors: Bala Rajni , Ghosh Joyee , Venkataraman Vivek
Published: September 2022

We present a 5-level rate model for the Doppler-broadened Rb D2-line absorption spectrum and experimentally verify that it correctly predicts upto 10 × lower saturation intensity as compared to the simple 2-level system, induced by hyperfine pumping.
Polarization-dependent Enhanced Vibrational Raman Conversion Efficiency in SF6-filled Hollow-core Photonic Bandgap Fiber
Authors: Avrahamy Roy , Halstuch Aviran , Belker Daniel , Ishaaya Amiel A.
Published: September 2022

We experimentally report a substantial Raman conversion efficiency enhancement, achieving more than 100% improvement over previous reports. The enhancement results from a non-trivial vibrational Raman conversion efficiency sensitivity to the input pump polarization angle.
Efficient Quantum State Tomography Using Collective Measurements of Two-Photon Polarization States
Authors: Mansouri Arman , Abrahao Raphael A. , Lundeen Jeff S.
Published: September 2022

We implement a theoretical proposal by Massar and Popescu to demonstrate more efficient quantum state tomography using collective measurements. To do so, we project onto non-maximally entangled polarization states of two photons from the ensemble.
Higher-Order Anapole in Slanted Nanodisk Resonator
Authors: Pradhan Monica , Sharma Shubhanshi , Bhaktha Shivakiran B N , Varshney Shailendra K
Published: September 2022

We propose slanted silicon nanoresonator which gives rise to higher-order anapole due to the interference of electric quadrupole and toroidal quadrupole modes. Numerical simulation is conducted to get the overview by varying suitable parameters.
Nanophotonic chirality transfer to dielectric Mie resonators
Authors: Mohammadi Ershad , Raziman T.V. , Curto Alberto G.
Published: September 2022

We propose that chirality transfer from chiral molecules to dielectric nanoresonators enhances enantiomer detection. Our approach offers circular dichroism enhancements orders of magnitude stronger than optical chirality-based methods.
Laser Cooling of Sapphire
Authors: Andre L.B. , Cheng L. , Rand S.C.
Published: September 2022

Laser cooling of titanium-doped sapphire via electric-dipole-allowed transitions is reported at discrete resonances of the dopant in the spectral range of its near-infrared emission band.
Computable limits of optical multiple-access communications
Authors: Shi Haowei , Zhuang Quntao
Published: September 2022

We model the optical networks as interference multiple-access channels, place computable limits on the capacity region, and evaluate the ultimate entanglement-assisted capacity of total rate. Entanglement is shown to provide strict rate-region advantages [1].
Low-Loss Bragg-Reflection Waveguides for On-Chip Time-Bin Entanglement
Authors: Thiel Hannah , Wagner Marita , Nardi Bianca , Schlager Alexander , Chapman Robert , Frick Stefan , Weihs Gregor , Suchomel Holger , Kamp Martin , Höfling Sven , Schneider Christian , Jehle Lennart , Conradi Hauke , Kleinert Moritz , Keil Norbert
Published: September 2022

We fabricate low-loss AlGaAs Bragg-reflection waveguides for the creation of telecom wavelength photon pairs via parametric down-conversion. These photon pairs are used in a hybrid on-chip time-bin entanglement scheme.
Plasma effects during soliton dynamics driven with circular polarisation in gas-filled hollow-core waveguides
Authors: Brahms Christian , Travers John C.
Published: September 2022

In both numerical simulations and experiment we find that, surprisingly, linearly and circularly polarised pulses produce near-identical plasma effects during soliton dynamics in gas-filled hollow waveguides, despite a reduction in field strength.
Detuning Modulated Composite Segments for High Fidelity Directional Couplers in Integrated Photonic Devices
Authors: Piasetzky Y. , Katzman M. , Priel M. , Suchowski H. , Zadok A.
Published: September 2022

We demonstrate a high-fidelity directional coupler in photonic integrated waveguides, utilizing a novel scheme of detuning modulated composite segments. We reduce the wavelength dependence by almost an order of magnitude, indicating significantly increased robustness.
Monolithic KTP Raman Oscillator as a Supercontinuum Source
Authors: Wu Ming-Hsiung , Lin Yan-Jou , Laurell Fredrik , Huang Yen-Chieh
Published: September 2022

We report generation of octave-spanning supercontinuum from a high-gain, ultra-broadband, and mirrorless Raman oscillator in a monolithic KTP crystal. The supercontinuum output contains two spectral groups between 540~750 and 1095~1800 nm.
Light Scattering from Rough Silver Surfaces in Multilayered systems
Authors: Dehghani Matin , David Christin
Published: September 2022

A theoretical approach to simulate the light scattering from multilayers of thin films with one rough surface is presented. Image processing is applied to calculate absorption for samples with different surface morphologies.
Self-injection Locked Photonic Time Crystals in a Dually-pumped Kerr Microcavity
Authors: Taheri Hossein , Matsko Andrey B. , Maleki Lute , Sacha Krzysztof
Published: September 2022

We demonstrate the simultaneous self-injection locking of two independent lasers to same-family Kerr cavity modes. The pumps realize dissipative discrete time crystals through sub-harmonic generation and can completely dominate mode anti-crossings in the pumping region.
Two-photon Absorption of Squeezed Light in the Continuous-Wave Limit
Authors: Drago C. , Sipe J. E.
Published: September 2022

We calculate the two-photon absorption for squeezed light pumped by a continuous-wave source, near or far from resonance, beyond the low intensity limit. For typical two-photon absorption parameters, we find no squeezed light enhancement.
Reconfigurable Parfocal Zoom Metalens
Authors: Shalaginov Mikhail , Yang Fan , An Sensong , Lin Hung-I , Stoll Katherine , Kang Myungkoo , Agarwal Anuradha , Richardson Kathleen , Rivero-Baleine Clara , Zhang Hualiang , Hu Juejun , Gu Tian
Published: September 2022

We designed and experimentally realized a non-mechanically tuned metalens capable of performing ×10 zoom while maintaining focus. The metalens consists of two dielectric metasurfaces made of low-loss optical phase-change material, Ge2Sb2Se4Te1.
Ultrafast beam steering of photoluminescence from dielectric metasurfaces
Authors: Iyer Prasad P. , Karl Nicholas , Gennaro Sylvain D. , Addamane Sadhvikas , Sinclair Michael B. , Brener Igal
Published: September 2022

We demonstrate ultrafast (<200 fs) unidirectional steering of photoluminescence over a 60° field of view from dielectric metasurfaces with embedded InAs quantum dots by creating a dynamical index grating using structured illumination.
Experimental demonstration of heterodyne functional near infrared spectroscopy with high resolution depth recovery capabilities
Authors: Barreiro Roberto , Martín-Mateos Pedro , González-Mora J.L , Posada-Román J.E. , de Dios Cristina
Published: September 2022

We present a new functional near-infrared technique (HET-fNIRS) based on heterodyne optical detection applied to dispersive media that offers high phase resolution (10mrad) and fast temporal resolution (5ms) with noiseless optical gain (enhanced depth range).
A self-salt-cleaning architecture in cold vapor generation system for hypersaline brines
Authors: Kunjaram Uma Pratheebha Umaiya , Song Haomin , Liu Youhai , Booker Brandon K , Cooke Timothy J , Gan Qiaoqiang
Published: September 2022

We reveal a three-dimensional “umbrella” architecture to evaporate hypersaline brines using solar-thermal effects. A stable evaporation rate of >2.6 kg m-2h-1 was achieved over a 4-day operation with minimized salt accumulation on evaporation surfaces.
Validation of a multi-frequency differential absorption LIDAR (DIAL) system from aerosol and cloud retrievals
Authors: Stroud Jasper R. , Plusquellic David F.
Published: September 2022

A ten wavelength DIAL system based on a 100 Hz optical parametric oscillator (OPO) is used to simultaneously acquire range-resolved and integrated path dry-air CO2 concentrations from soft cloud targets in Boulder, Colorado.
Highly Sensitive Room Temperature Heterodyne Detection with Stabilized Qc Lasers
Authors: Saemian Mohammadreza , Gacemi Djamal , Chomet Baptiste , Rudriguez Etienne , Todorov Yanko , Vasanelli Angela , Sagnes Isabelle , Pantzas Konstantinos , Beaudoin Gregoire , Lopez Olivier , Darquié Benoît , Sirtori Carlo
Published: September 2022

A heterodyne detection system, made with unipolar devices operating @4.5µm, reaches a record noise equivalent power of 200 fW at room temperature. Key elements of this setup are frequency stabilized QC lasers and high-speed detectors.
Modeling the frequency response of vertical and lateral Ge-on-Si waveguide photodetectors: Is 3D simulation unavoidable?
Authors: Alasio Matteo Giovanni Carmelo , Vallone Marco , Tibaldi Alberto , Bertazzi Francesco , Namnabat Soha , Adams Donald , Gothoskar Prakash , Forghieri Fabrizio , Masini Gianlorenzo , Ghione Giovanni , Goano Michele
Published: September 2022

Using a 3D multiphysics model as a reference, we investigate the achievements and limitations of a simpler 2D drift-diffusion model to reproduce and optimize the electrooptical frequency response of vertical and lateral Ge-on-Si waveguide photodetectors.
Electrically reconfigurable photonic PUF based on a moiré quasicrystal interferometer
Authors: Tarik Farhan Bin , Joyce Derrick , Lao Yingjie , Ryckman Judson D.
Published: September 2022

Motivated by cryptographic applications seeking enhanced reliability and security, we demonstrate physically unclonable photonic circuits based on active quasicrystal interferometers with integrated micro-heaters. Small changes in electrical stimuli are shown to produce distinct optical fingerprints.
Infrared Refractive Index Measurement of Niobium Nitride Thin-Film via FTIR
Authors: Paul Dip Joti , Zhou Tony X. , Berggren Karl K.
Published: September 2022

We report the optical constants of thin-film NbN in the wavelength of 2.5 to 25 µm, which is determined by fitting Drude-Lorentz dielectric function to the reflectance and transmittance data obtained via FTIR.
Hybrid Integration of Multilayers GeP on a Silicon Photonics Platform for Optoelectronic Application
Authors: Dushaq Ghada , Paredes Bruna , Villegas Juan Esteban , Tamalampudi Srinivasa Reddy , Rasras Mahmoud
Published: September 2022

we demonstrate a waveguide integrated photodetector based on multilayerd 2D GeP operating in the SWIR range. Results show that photodetectors work under bias with a low dark current of few nano-amps and exhibit remarkable photoresponsivity with excellent air stability.
Proton Beam Enhancement from Ultrafast Laser Interactions with Compound Parabolic Concentrators
Authors: Smith H. , Rusby D. , Zeraouli G. , Campbell P. , Ha T. , Mariscal D. , Ma T. , Wilks S. , Mackinnon A. , Quevedo H. , Medina E. , Spinks M. , Bruce S. , Donovan M. , Ditmire T.
Published: September 2022

We describe results of an experiment conducted on the Texas Petawatt Laser using compound parabolic concentrators affixed to Cu targets. We demonstrate enhancements in the peak proton energy and measured dose compared to flat targets.