bluuebunny/crossref_metadata_2025 huggingface dataset:
Scene Plane Recognition via Depth-Infrared Intensity Fusion Using ToF Camera
Authors: Yang Dongzhao , An Dong , Wang Qiang , Pan Zhongqi , Yue Yang
Published: September 2024

A scene plane information recognition method is demonstrated based on data fusion using a single ToF camera. This approach effectively tackles general LiDAR’s deficiencies in identifying planar content, achieving an impressive recognition accuracy of 98.3%.
Characterizing the Bending Response of Forward Stimulated Brillouin Scattering in Photonic Crystal Fiber
Authors: Zou Xuan , Wei Weilun , Chen Shuyan , Zhao Zhiyong , Yang Chen , Tang Ming
Published: September 2024

We characterize the bending response of forward stimulated Brillouin scattering (FSBS) in photonic crystal fiber (PCF). Thanks to the unique air-core geometry, high curvature sensitivity (-1.7790 MHz/cm) and high stability ( ≤ 87.8 KHz) are obtained.
Stable Frequency Transmission over a 68-km Installed Telecom Fiber Network
Authors: Gao Hao , Cheng Jiahui , Zhang Jie , Zhao Baodong , Liu Yapeng , Liu Chenxia , Chen Ziyang , Luo Bin , Yu Song , Guo Hong
Published: September 2024

We demonstrate a stable frequency transmission over a 68 km installed telecom fiber and compare the effect of occasional vibrations within a city on the frequency instability of the system.
Super-resolution interferometric phase measurement with directionally-unbiased linear-optical devices
Authors: Schwarze Christopher R. , Simon David S. , Ndao Abdoulaye , Sergienko Alexander V.
Published: September 2024

A beam-splitter forbids input light from exiting the input port. We introduce a four-port linear scatterer without this restriction, establishing an alternate approach to cavity interferometry. The Michelson configuration enables super-resolution phase measurements without post-selection.
High-sensitivity, high-speed underwater ultrasonic detection based on time-stretched self-coherent detection
Authors: Li Yujia , Lo King Shing , Huang Dongmei , Lu Chao , Wai P. K. A.
Published: September 2024

A MHz-level underwater ultrasonic wave with the kPa-level pressure is detected by the time-stretched self-coherence system with a high speed and highly coherent swept laser, which is significant for ultrasound detection.
Luminescent Waveguides with Synaptic Properties for Photonic Artificial Neural Networks
Authors: Dias Lília M. S. , Fu Lianshe , Towe Elias , Ferreira Rute A. S. , André Paulo S. B.
Published: September 2024

We replicate biological neurons and synapses, transmitting 0.2 Hz impulses through luminescent waveguides with adjustable features. This breakthrough has significant implications for neuromorphic engineering, providing valuable insights into neural networks technological applications and signal transmission.
Carrier Transfer From C-Plane to Semipolar-Plane Regions in a Red-Emitting InGaN/GaN Heterostructure
Authors: Malhotra Yakshita , Shen Yifan , Wu Yuanpeng , Hanish Josey , Guo Yifu , Xiao Yixin , Sun Kai , Norris Theodore , Mi Zetian
Published: September 2024

Temperature and power dependent time-resolved photoluminescence measurements are performed on a novel ultra-stable red-emitting InGaN/GaN heterostructure. PL dynamics at two distinct wavelengths indicate a lateral carrier transfer from c-plane to semipolar-plane InGaN in the structure.
Polarization-Dependent Spectral Phase of Exciton-Polaritons in a Semiconductor Microcavity
Authors: Louscher Hunter , Paul Jagannath. , Fumero Giuseppe , Wahlstrand Jared K. , Bristow Alan D.
Published: September 2024

Peak amplitude, phase, linewidth, and energy are recorded for exciton-polaritons measured with rephasing two-dimensional coherent spectroscopy as a function of detuning and polarization. The relative phases with respect to co-circular polarization are detuning dependent.
A polarization-sensitive visible broadband absorber based on a phase-modulation metasurface
Authors: Li Liye , Wu Wengang
Published: September 2024

We propose a polarization-sensitive visible broadband absorber based on a phase-modulation metasurface. The measured average absorptivity of the y-polarized beam reaches 76.8%, and the x-polarized reflectivity is 56.4%, with angle robustness and working band tunability.
Multimodal surface lattice resonances based on angle and polarization multiplexing in an all-metal metasurface
Authors: Li Liye , Wu Wengang
Published: September 2024

Bi- and tri-mode surface lattice resonances can be generated regularly based on the angle and polarization multiplexing in an all-metal metasurface, and corresponding resonance wavelengths can be described by a set of formulas precisely.
Multimode Fibre Imaging Resilience to Deformation in the Near-field and Far-field
Authors: Kilpatrick Robert J. , Mididoddi Chaitanya K. , Li Shuhui , Phillips David B.
Published: September 2024

Multimode fibres exhibit degraded imaging performance when the fibre bends. We contrast the spatial variation of the imaging performance due to bending between imaging in the near and far-field of the output facet.
Probing Spectral Transition of Soliton Molecules in MIR Mode-locked Fiber Laser
Authors: Hu Guyue , Shi Minghui , Dong Xin , Zhou Yi , Wong Kenneth K. Y.
Published: September 2024

Dissipative soliton generation in a novel MIR mode-locked laser is presented. The laser emits at 2.8 um with ~30 nm bandwidth, and the spectral transitions of soliton molecules between different states are observed.
All-Dielectric Metasurface with a Locally Flat Photonic Band in All Directions
Authors: Munley Christopher , Manna Arnab , Froech Johannes , Choi Minho , Majumdar Arka
Published: September 2024

Here we demonstrate a photonic band in a Lieb lattice metasurface that is locally flat in all directions around normal incidence up to a numerical aperture of ~.1.
Tailoring the Diffraction Characteristics of Reflective Metagratings Employing One-Step Residue-Free UV Laser Interference Patterning
Authors: de Galarreta Carlota Ruiz , Shields Joe , Alegria Miguel Alvarez , Wright C. David , Serna Rosalia , Siegel Jan
Published: September 2024

We demonstrate a single step, cost efficient, and residue free UV-interferometric technique for the instantaneous fabrication of high performance, near infrared metagratings with tailored diffraction properties both in terms of dispersion and efficiency.
DermaPlex: A Metasurface-based Hyperspectral Skin Cancer Detection System
Authors: Burguete-Lopez Arturo , Makarenko Maksim , Wang Qizhou , Fratalocchi Andrea
Published: September 2024

We introduce DermaPlex, a metasurface-based hyperspectral skin cancer detection system. DermaPlex can capture high-resolution hyperspectral images in real-time and is a scalable technology manufactured at a fraction of the cost of conventional hyperspectral systems.
Bismuth-doped Fiber Laser at 1.3 μm Mode-locked by Nonlinear Polarization Rotation
Authors: Wen Xiaoxiao , Qiao Tian , Dong Xin , Zhou Meng , Wong Kenneth Kin-Yip
Published: September 2024

We propose a 1320 nm laser using homemade Bismuth-doped fiber, mode-locked by nonlinear polarization rotation with 20-nm bandwidth and 5-MHz repetition rate. This laser is of significant potential for biological imaging.
High-performance Raman-based Distributed Temperature Sensing Empowered by Data-Driven Dual-Stage 1D-CNN
Authors: Peng Wei , Jie Ruimin , Liu Bo , Ma Lingmei , Zhu Chen
Published: September 2024

With the assistance of a data-driven dual-stage convolutional neural network model, we have experimentally demonstrated a high-performance Raman-based distributed temperature sensing system with an update rate of 0.02 s and a temperature uncertainty of 0.09°C.
Novel annular small-period long-period fiber gratings for dual parameter sensing
Authors: Liu Yulei , Cai Jintao , Liu Hanyuan , Shu Xuewen
Published: September 2024

A new type of small-period long-period fiber grating consisting of a series of annuli inscribed by a femtosecond laser in a single-mode fiber is demonstrated, which is very practical for simultaneous sensing of refractive index and temperature.
Increased Efficiency Within Time of Flight LiDAR Systems Through the Inclusion of Mid-IR Components
Authors: Camp Patrick T. , Midkiff Jason , Hsiao Po-Yu , Chen Ray T.
Published: September 2024

NIR ToF LiDAR systems suffer from atmospheric attenuation and noise caused by background solar irradiance. By incorporating Mid-IR components, we propose a direct ToF LiDAR system with increased efficiency when compared to conventional NIR systems.
Arrayed vector mode emitters
Authors: Natarajan Vighnesh , Rivy Hamim Mahmud , Mehta Karan K
Published: September 2024

We present a robust passive high-purity circular polarization emitter leveraging asymmetric perturbations’ to vectorial waveguide modes. 3D FDTD simulations for a hafnia-based device at λ = 405 nm indicate ability to radiate > 99%-purity over the radiated beam.
Ultra-High-Resolution Pixel Density Formed Directly with Photolithography for Micro-LED Displays
Authors: Chen Shan-Yu , Wu Chen-Hsun , Chen Chi-Shiang , Tsai Chih-Yuan , Lin Ching-Fuh
Published: September 2024

Red and green pixel density achieves 5080 PPI with a 4x4-μm pixel size, employing etching-free photolithography. Doping nanoparticles into transparent photoresist boosts quantum efficiency to 70.6% (red) and 70.0% (green), enhancing color conversion layer vividness.
Laser Beam Induced Current for Defect Concentration and Aging Analysis of Broad Area Laser Diodes
Authors: McVay E. , Deri R.J. , Mittelberger D. , Fenwick W.E. , Baxamusa S. , Boisselle M.C. , Li J. , Varley J. , Swertfeger R. , Gilmore L. , Crowley M. , Thiagarajan P. , Song J. , Thaler G.
Published: September 2024

Laser Beam Induced Current Spectroscopy (LBIC) is used to identify failure locations during aging of ~800 nm broad area laser diodes. The magnitude of the spatially integrated LBIC signal is correlated with the threshold current.
Photocarrier Dynamics in Highly Scattering Nanocatalyst Clusters
Authors: Gyawali Sunil , Tirumala Ravi Teja A. , Loh Harison , Andiappan Marimuthu , Bristow Alan D.
Published: September 2024

Including pump scattering in the rate equation analysis allows for precise estimation of photoexcited population dynamics in highly scattering samples. Additionally, pump scattering profiles may be utilized to investigate the size distribution of nanocatalyst clusters.
Characterization of Quantum Cascade Laser Facets via Steady-State Thermoreflectance
Authors: Jones Andrew. H. , Foley Brian. M. , Kirch Jeremy D. , Zhang Shuqi , Botez Dan , Mawst Luke. J.
Published: September 2024

We investigate the use of steady-state thermoreflectance as a hitherto unexplored method of QCL evaluation via material characterization of the material thermal conductivity. We demonstrate the effectiveness of this approach for quantitative thermal characterization of post-fabrication QCL epitaxy at the sub-micron scale.
Reciprocity Principle and Structure-Induced Asymmetry between Counterpropagating Modes in Whistle-Geometry Ring Lasers
Authors: Lee Hosuk , Smolyakov Gennady A. , Osiński Marek
Published: September 2024

The asymmetry between the counterpropagating modes in whistle-geometry semiconductor ring lasers might be misconstrued as a violation of the Helmholtz reciprocity principle. We confirm the unidirectionality of the whistle-geometry configuration through rigorous 3D FDTD simulation.
A Faraday laser based on corner-cube retroreflector
Authors: Wang Zhiyang , Liu Zijie , Shi Hangbo , Qin Xiaomin , Guan Xiaolei , Shi Tiantian , Chen Jingbiao
Published: September 2024

We present a single-mode Faraday laser based on the corner-cube retroreflector, whose wavelength can correspond to the atomic transition line. The linewidth can be narrowed below 10 kHz, and the maximum wavelength change is 3.3 pm within 46 hours.
980 nm micro-cavity lasers with sub-milliampere threshold
Authors: Lin Qi , Xue Ying , Huang Jie , Gu Wen , Lau Kei May
Published: September 2024

We report electrically-pumped InGaAs/GaAs/GaAsP quantum well micro-cavity lasers on GaAs with low thresholds down to the sub-milliamp level and a maximum operating temperature of 95°C. Micro-lasers with various cavity designs were characterized and compared.
Large Tolerance of Lasing Properties to Impurity Defects in GaAs(Sb)-AlGaAs Core-Shell Nanowire Lasers
Authors: Schreitmüller T. , Jeong H. W. , Esmaielpour H. , Mead C. E. , Ramsteiner M. , Schmiedeke P. , Thurn A. , Ajay A. , Matich S. , Döblinger M. , Lauhon L. J. , Finley J. J. , Koblmüller G.
Published: September 2024

Performance limiting factors for GaAs(Sb)-AlGaAs nanowire (NW) lasers are unveiled by exploring the impact of impurity-induced point defects. Lasing properties show large tolerance to these defects which, however, limit radiative efficiency and lasing threshold beyond critical densities.
Terahertz spectroscopy and imaging of MOVPE grown AlGaN films
Authors: Margenfeld Christoph , Netto Giovanni B. , Cruz Flávio C. , Waag Andreas , Siqueira Jonathas P.
Published: September 2024

We investigate MOVPE-grown Al0.67Ga0.33N alloys with varying silicon n-type doping using Terahertz Time-Domain Spectroscopy and Imaging. We observe a compensation regime and spatially inhomogeneous conductivity.
A Self-Aligned Assembling Terahertz Metasurface Microfluidic Sensor with High Sensing Performance
Authors: Cao Yunhao , Sun Hongshun , Chen Yusa , Li Liye , Ma Lijun , Wu Wengang
Published: September 2024

We propose a self-aligned assembling terahertz metasurface microfluidic sensor. Compared with some related work, the sensitivity is increased by 40%, the Q-factor is increased by 3~5 times, and the FOM is increased by 5 times.
Broadband and Tailorable THz Emission from Spintronic Photonic Crystals
Authors: Ghaffari Abbas , Thapa Puja , Collazo Ramón , Gundogdu Kenan , Sun Dali , Gu Qing
Published: September 2024

we explore THz generation from structured ferromagnet/ultrawide bandgap semiconductor heterostructures. The emission spectrum can span the entire THz gap, be enhanced, and tuned by changing size and periodicity of the subwavelength pillars in photonic crystal.
Production of Extremely Strong Accelerating Electric Field by Focusing THz Pulses with a Paraboloid Ring
Authors: Pálfalvi László , Godana Zerihun T. , Tóth György , Hebling János
Published: September 2024

Our numerical simulations of focusing radially polarized THz pulses having only 3 mJ energy with a paraboloid ring predict peak electric field approaching 100 MV/cm. Such electric fields are well appropriate for sub-relativistic electron acceleration.
Femtosecond laser written and selectively etched structures for micro-optofluidics in a monolithic lithium niobate chip
Authors: Nwatu Daniel , Kip Detlef , Hasse Kore
Published: September 2024

Femtosecond laser written and selectively etched 3D-micro-optofluidic devices have been fabricated with high selectivity (~2900) and low roughness (~23 nm), combining a waveguide with a microchannel in the volume of a monolithic lithium niobate chip.
fs Laser-Triggered Dynamic Vapor Nanobubble Generation from Nanopillar Plasmonic Nanotransducer Arrays
Authors: Nie Meitong , Song Junyeob , Tali Seied Ali Safiabadi , Zhou Wei
Published: September 2024

Vapor nanobubble is generated on nanopillar plasmonic nanotransducer arrays using femtosecond laser. Its spatial-temporal dynamics is extracted and analyzed, facilitating the development of highly precise and efficient nanoscale cell manipulation techniques.
Multi-stage Optical Sampling for Photonics-assisted Wideband Signal Analog-to-Digital conversion
Authors: Mandalawi Younus , Meier Janosch , Singh Karanveer , Hosni Mohamed I. , Yadav Deepanshu , Schneider Thomas
Published: September 2024

We introduce a multi-stage photonics-assisted analog-to-digital conversion of wideband signals. In a proof-of-concept, we show the processing of signals with nine times the bandwidth of the incorporated electronics with an ENOB improvement of around 3.
Examining thermal waves at liquid-vapor interface far from equilibrium with dark hollow beams
Authors: Eshaghi Mahdi , Acevedo Cristian Hernando , Dogariu Aristide
Published: September 2024

Remotely measuring the liquid-vapor interfaces far from thermal equilibrium is a daunting task. We demonstrate that scattering of dark hollow beams enhances considerably the sensitivity to temperature changes and permits detecting subtle interface fluctuations.
Complexity reduction of CMA for polarization demultiplexing according to the autocorrelation function of SOP
Authors: Zhang Yan , Cui Nan , Zhang Xiaoguang
Published: September 2024

We found the symbol update interval in CMA can be lengthened according to the ACF of SOP in fibers. For a 32GBaud PDM system with 300krad/s SOP, 50% reduction in CMA complexity can be achieved.
10 Mbit/s UV Solar-Blind OWC at 30 Photons per Bit
Authors: Liu Feng , Farmer James , Faulkner Grahame , Wang Zhaoming , Wang Jianming , O’Brien Dominic , Xie Enyuan , Hill Jordan , Herrnsdorf Johannes , McKendry Jonathan J.D. , Dawson Martin D.
Published: September 2024

We report an ultra-sensitive UV solar-blind receiver with DCR below 10 kHz. Paired with a UV-C micro-LED, a 10 Mbit/s link with a BER of 3 ×10−3 at ~30 photons per bit is established.
A Self-powered Optical Strain Sensor Integrated with a Circuit Board
Authors: Jiang Qinchuan , Zou Yang , Zeng Xin , Guo Xingen , Liang Yongzheng , Li Kemin , Chen Qingming
Published: September 2024

A self-powered mechanoluminescent optical fiber is attached to the circuit board to form a strain sensor system. Both the strain strength up to 50% and stretching speed of 200-500 mm/min have been detected.
Beyond self-phase modulation: solitons and supercontinua in quasi-phasematched nonlinear nanowaveguides
Authors: Jankowski Marc
Published: September 2024

Waveguides with second-order nonlinearities can combine dispersive effects with multi-wave interactions to realize an incredible variety ultrafast behaviors. In this talk we discuss supercontinuum generation by saturated frequency conversion and parametric downconversion by gain-trapped solitons.
Rotatum of Light
Authors: Dorrah Ahmed H. , Palmieri Alfonso , Li Lisa W. , Capasso Federico
Published: September 2024

We introduce optical rotatum where a vortex beam experiences a quadratic chirp in its orbital angular momentum along the optical path. We discuss the physical dynamics of this topological deformation as well as potential use in metrology and sensing.
Observation of Boyer-Wolf Gaussian Modes
Authors: Guacaneme David , Tschernig Konrad , Mhibik Oussama , Divliansky Ivan , Bandres Miguel A.
Published: September 2024

We experimentally observe a new family of fundamental laser modes of stable resonators: the Boyer-Wolf Gaussian modes. The lasing Boyer-Wolf Gaussian modes exhibit an inherent parabolic structure and show remarkable agreement with our theoretical predictions.
Hong-Ou-Mandel Interference with a Diode-pumped 1-GHz Ti:sapphire Laser
Authors: Morland Imogen , Ostapenko Hanna , Zhu Feng , Reid Derryck T. , Leach Jonathan
Published: September 2024

We demonstrate correlated photon pair generation at 790 nm using a diode-pumped Kerr-lens-modelocked 1-GHz Ti:sapphire laser and verify the presence of indistinguishable photons using Hong-Ou-Mandel interferometry, showing a dip in coincidence counts with 81.8% visibility.
Perfect Two-Photon State Transfer in a Trimer of Three-Level Systems using Laser Pulses
Authors: Aiyejina Abuenameh , Wyke Ethan , Andrews Roger , Greentree Andrew D.
Published: September 2024

We investigate two-photon transfer in a trimer of coupled three-level systems excited by laser pulses. We show that perfect state transfer and maximal entanglement are possible for certain detunings on the central site.
Light Absorption Properties in the LH1-RC Photosynthetic Complex Using a Laser Pulse
Authors: Wyke Ethan , Aiyejina Abuenameh , Andrews Roger
Published: September 2024

We analytically derive the wavefunction for the LH1-RC photosynthetic complex excited by a laser pulse. We demonstrate that the light absorption process with a resonant pulse is marginally less efficient than the single photon case.
Phase stabilization of a long optical interferometer for entanglement distribution
Authors: Sugiyama Yohei , Amaki Riho , Shitaka Yuto , Tsuno Tomoki , Yoshida Daisuke , Nagano Koji , Horikiri Tomoyuki , Hong Feng-Lei , Akamatsu Daisuke
Published: September 2024

We demonstrated phase stabilization of a long optical interferometer by using two lasers at different wavelengths aiming for entanglement distribution between remote quantum nodes.
Study on the effect of discrepancy information in the high-dimensional domain on resolution improvement of the ghost imaging camera
Authors: Hu Chenyu , Xue Haitao , Liu Zhentao , Han Shensheng
Published: September 2024

Imaging resolution limit of the ghost imaging camera is investigated via the statistical resolution framework. Both theoretical and simulation results confirm that the resolution improvement can be achieved by utilizing the discrepancy information in the high-dimensional domain.
Phase Dependent Hanbury-Brown and Twiss effect
Authors: Tang Xuan , Zhang Yunxiao , Guo Xueshi , Liang Cui , Li Xiaoying , Ou Z. Y.
Published: September 2024

We report a phase sensitive two-photon interference effect when the incoming thermal fields are mixed with weak coherent reference fields. The complex second-order coherence function of the input thermal fields can be extracted.
Wigner’s Phase Space Current for the Conditional Dynamics in Entangled Two Mode Systems — Seeing Beam Splitters in a New Light —
Authors: Steuernagel Ole , Lee Ray-Kuang
Published: September 2024

We study Wigner distribution dynamics in terms of its current J. Specifically, the strongly mode mixing dynamics of a variable beam splitter. We provide some theory and examples illustrating the visual power of this approach.
All-to-All Connected Photonic Ising Machine with Arbitrary Spin Number Based on Mach-Zehnder Interferometers
Authors: Gao Yuan , Qi Luo , Lin Hong-Lin , Chen Guanyu , Fu Wujie , Lan Yuchi , Danner Aaron
Published: September 2024

We experimentally realized a photonic Ising machine with arbitrary spin number and all-to-all connection using Mach-Zehnder interferometry and specially designed phase detection region, serving as a general combinatorial optimization problem solver.
Perfect pulsed inline twin-beam squeezers
Authors: Houde Martin , Quesada Nicolás
Published: September 2024

We obtain analytical results for the input and output temporal-modes of three different waveguided twin-beam squeezers. Double-pass configurations give perfect inline squeezers where the input and output modes are identical while single-pass configurations do not.
Spectral Property Engineering of Photon Pairs in Different Spatial Modes from Few-Mode Fiber
Authors: Zhu Shengjie , Cui Liang , Li Xiaoying
Published: September 2024

Frequency uncorrelated or negatively correlated signal and idler photon pairs, respectively in LP11 and LP01 modes, are created via inter-spatial-mode spontaneous four-wave mixing process with two pulsed pumps.
Mean-field equation for phase-modulation mode-locked optical parametric oscillator with dispersion control
Authors: Sanchez A. D. , Kumar S. Chaitanya , Ebrahim-Zadeh M.
Published: September 2024

We derive a mean-field equation for degenerate optical parametric oscillator driven by a continuous-wave laser with intracavity electro-optic modulator, including dis-persion compensation. The equation predicts femtosecond-pulse formation in both normal and anomalous dispersion regimes.
Mid-IR femtosecond laser induced filamentation dynamics in polycrystalline ZnS using time-resolved pump-probe microscopy
Authors: Twardowski Justin , Eder Milo , Marra Z. Alphonse , Chini Michael , Chang Zenghu , Chowdhury Enam
Published: September 2024

A 250fs 4.07μm laser driven filamentation in polycrystalline ZnS is imaged by a synchronous orthogonal femtosecond 520nm probe. Multiple filaments are visible for each power, where larger filaments appear at the highest intensity.
Prediction of the Period-4 Modulation Instability in Ring Fiber Cavities
Authors: Shi Minji , Conforti Matteo , Mussot Arnaud , Perego Auro M.
Published: September 2024

We predict the occurrence of a novel form of modulation instability in passive ring fiber cavities. This instability, characterized by a period-4 pattern, can be observed using experimentally accessible parameters.
Surface Acoustic Waves for Acousto-optic Modulation in Silicon Nitride Platform
Authors: Zheng Zheng , van der Slot Peter , Marpaung David
Published: September 2024

We present novel design of thermally driven acousto-optic modulation with surface acoustic wave (SAW) in silicon nitride (Si3N4) platform. Buried waveguide with metal grating on the surface is optimized for intramodal and intermodal modulation optomechanics.
Realization of Non-Hermitian Antichiral Currents in Synthetic Dimensions
Authors: Ye Rui , He Yanyan , Li Guangzhen , Yuan Luqi , Chen Xianfeng
Published: September 2024

We report on the theoretical and experimental demonstration of non-Hermitian antichiral currents based on a tunable non-Hermitian Hall ladder in the synthetic frequency dimension implemented by two coupled optical ring resonators.
Compact and robust common-path scheme for fourth harmonic generation of deep UV ultrashort laser pulses
Authors: Susnjar Peter , Demidovich Alexander , Kurdi Gabor , Cinquegrana Paolo , Nikolov Ivaylo , Sigalotti Paolo , Danailov Miltcho B.
Published: September 2024

Ultrashort pulses in the deep-UV region around 200 nm have important applications in laser spectroscopy and Free-Electron laser technology [1,2]. Such pulses can be obtained using Ti:Sapphire laser followed by a fourth harmonic generation (FHG). In this case due to phase matching limitations of the available nonlinear crystals the fourth harmonic (FH) can only be generated in a three-step setup starting with second harmonic generation (SHG), followed by third harmonic generation (THG) realized by sum frequency mixing (SF) of SH and fundamental pulses, and then a final FHG stage based on sum frequency mixing of third harmonic (TH) and fundamental pulses.
Experimental Implementation of Quantum Steganography Using Coherent States
Authors: Weinstein Haley , Avritzer Bruno , Brun Todd A. , Habif Jonathan L.
Published: September 2024

We devise a system to measure the quantum density matrix of different noises and then control these noises to achieve positive rate covert communications. This is demonstrated for thermal noise in an optical communication link.
Enhancing Photon Information Capacity in High-Dimensional Arrival-time-bin QKD through Polarization Hyperentanglement
Authors: Sarihan Murat Can , Chang Kai-Chi , Chen Yujie , Cheng Xiang , Chin Hsiao-Hsuan , Wong Chee Wei
Published: September 2024

We used frequency-polarization hyperentanglement to eliminate global errors in high-dimensional arrival time-bin encoding and reached a 34% increase in photon information efficiency at a higher frame limit.
Enhanced optical entanglement distribution through noisy channels by temporal mode filtering
Authors: Lichtman Jack H. , Sinclair Neil , Raymer Michael G. , Smith Brian J.
Published: September 2024

We show that a single temporal mode filter can improve the quality of photonic entanglement distributed across a noisy, multi-mode channel.
Multiwavelength Distributed Bragg Reflector Laser Platform for Quantum Applications
Authors: Kuusela Luukas , Mähönen Mika , Aho Timo , Ulkuniemi Riina , Schramm Andreas , Talmila Soile , Hämelahti Jussi , Sipilä Pekko , Palomäki Kalle , Uusimaa Petteri
Published: September 2024

Distributed Bragg reflector lasers are presented at various wavelengths relevant to quantum information science and technology applications; 650 nm, 760 nm, 780 nm, 795 nm, and 935 nm. The lasers exhibit reliable high-power operation with down to below 500 kHz linewidth.
Wavelength-multiplexed Delayed Inputs for Memory Enhancement of Microring-based Reservoir Computing
Authors: Giron Castro Bernard J. , Peucheret Christophe , Da Ros Francesco
Published: September 2024

We numerically demonstrate a silicon add-drop microring-based reservoir computing scheme that combines parallel delayed inputs and wavelength division multiplexing. The scheme solves memory-demanding tasks like time-series prediction with good performance without requiring external optical feedback.
Route to High Repetition Rate All-fiber Ring Mamyshev Oscillator
Authors: Delangle Corentin , Scol Florent , Hönninger Clemens , Bouwmans Géraud , Vanvincq Olivier , Hugonnot Emmanuel
Published: September 2024

We report numerical simulations demonstrating the possible operation of Mamyshev oscillator at a repetition rate above 300 MHz in fundamental regime. A first experimental cavity is being built and we present preliminary results.
10.2-µm Seed Generation in a BGGSe Nonlinear Crystal for Nonlinear Seeding of Terawatt CO2 Amplifiers
Authors: Yang Ya-Po , Lee Jheng-Yu , Wang Jyhpyng
Published: September 2024

A 3-ps, 60-µJ, 10.2-µm pulse is generated by mixing subnanosecond 1338-nm and chirped 1540-nm pulses in BGGSe nonlinear crystal. The feasibility of its application in nonlinear seeding of CO2 laser amplifiers is proven numerically.
Broadband Mamyshev Oscillator at 1.7 μm
Authors: Wen Xiaoxiao , Zhou Meng , Qiao Tian , Chen Jixiang , Dong Xin , Wei Jinge , Luo Zhichao , Wong Kenneth Kin-Yip
Published: September 2024

We demonstrate a single-pulse Mamyshev oscillator at 1.7 μm using Tm-doped fiber. The results of 5.4-MHz repetition rate and 95-nm optical spectrum bandwidth at 10 dB highlight its potential application for nonlinear microscopy.
Experimental evidence of replica symmetry breaking in mode disparities of Raman random fiber laser
Authors: Qi Yifei , Ni Longqun , Bao Xingyu , Wang Pan , Zhang Jiaojiao , Raposo Ernesto P. , Gomes Anderson S. L. , Wang Zinan
Published: September 2024

In this work, the RSB phase transition of Raman random fiber laser (RFL) is experimentally demonstrated, and the relationship between different modes of Raman RFL and RSB phase transition is explored for the first time.
Wavelength-Selectable Inter- and Intra-modal Four Wave Mixing in Elliptical Core Fibers
Authors: Khudus Muhammad I.M. Abdul , Ji Kunhao , Xu Lin , Halder Arindam , Guasoni Massimiliano
Published: September 2024

We experimentally demonstrate wavelength selectable inter- and intra-modal four-wave mixing in elliptical core fibers. Three pairs of idler-signal pairs can be independently selected by controlling the pump polarization modes (LP11a and LP11b).
Femtosecond Laser Inscribing an Ultra-compact Dual-effect LBL-FBG
Authors: Zhao Rong , Wu Jiaming , Shu Xuewen
Published: September 2024

An ultra-compact dual-effect line-by-line inscribed fiber Bragg grating (LBL-FBG) has been fabricated in a single-mode fiber by femtosecond laser direct writing through the coating. The dual-effect LBL-FBG has the characteristics of both FBG and Mach-Zehnder interferometer.
Coupling into higher order modes of a hollow-core fiber due to fusion splicing
Authors: Kelly T.W. , Mousavi M. , Shi B. , Poletti F. , Wheeler N.V. , Slavík R.
Published: September 2024

We investigate the impact of fusion-splicing on the modal purity when splicing nested antiresonant nodeless hollow-core fiber to standard solid-core fiber (SMF). By optimizing the procedure, unwanted cross-coupling below -27 dB is achieved.
Enhanced Supercontinuum generation by a dispersion-managed L-band ultrafast fiber laser pump
Authors: Ye Feng , Liu Xuanyi , Fu H. Y. , Li Qian
Published: September 2024

We propose the scheme using the dispersion-managed L-band mode-locked pulse (near-zero normal net-cavity dispersion) to subtly enable a distinct enhancement of octave-spanning supercontinuum with a broader bandwidth and flatter spectra.
Single Polarization, Single Mode Solid Antiresonant Fiber
Authors: Goel Charu , Yoo Seongwoo , Chang Wonkeun
Published: September 2024

We report an all-solid antiresonant fiber design possessing broadband, single polarization, fundamental mode light guidance with a high birefringence of 1.3×10−4 and polarization dependent loss exceeding 10 dB/m over >300 nm bandwidth.
Integrating Thin-Film Lithium Niobate Photonics and Surface-Electrode Ion Traps
Authors: Kessler Thomas J. , Gorbaty Simon , Zhao Lingfei , Ryan Joseph M. , Noel Crystal
Published: September 2024

Integrated photonics offers trapped-ion experiments scalable performance ad-vantages and opportunities for monolithic optical control. We present plans for adding thin-film lithium niobate to the trapped-ion photonics toolkit, enabling on-chip modulator inte-gration.
Characterization of grating couplers for 40Ca+ based integrated surface ion traps
Authors: Furusawa Kentaro , Hayasaka Kazuhiro , Watanabe Issei , Sekine Norihiko , Tanaka Utako
Published: September 2024

We report fabrication and characterization of grating couplers designed for 40Ca+ based planar surface traps. The wavelengths include 866, 854 and 729 nm and focusing at 100 um from the surface is demonstrated.
All-photonic GKP-qubit repeater using analog-information-assisted multiplexed entanglement ranking
Authors: Rozpedek Filip , Seshadreesan Kaushik P. , Polakos Paul , Jiang Liang , Guha Saikat
Published: September 2024

We propose a novel strategy of using the bosonic Gottesman-Kitaev-Preskill (GKP) code in a repeater architecture with multiplexing. We also quantify the number of GKP qubits needed for the implementation of our scheme.
Adaptive generation of flying logical qubits
Authors: Takase Kan , Hanamura Fumiya , Nagayoshi Hironari , Kawasaki Akito , Asavanant Warit , Endo Mamoru , Furusawa Akira
Published: September 2024

We formulate a method to efficiently extract the non-classicality of photon number measurements into optical traveling wave and show that practical logical qubits can be generated over 10% probability in a realistic system.
Self-driving lab discovers high-efficiency directional incoherent emission from reconfigurable semiconductor metasurfaces
Authors: Desai Saaketh , Addamane Sadhvikas , Dingreville Remi , Brener Igal , Iyer Prasad P.
Published: September 2024

We discover high efficiency (77%) steering of incoherent emission from reconfigurable semiconductor metasurfaces by engineering the spatial refractive index profile of the metasurface resonators using autonomous experiments driven by generative models and active learning.
Quantum image distillation with undetected light
Authors: Fuenzalida Jorge , Basset Marta Gilaberte , Töpfer Sebastian , Torres Juan P. , Gräfe Markus
Published: September 2024

The distillation of genuine object data from noise when recoding an image is of immense value in modern microscopy. We demonstrate, an approach in the realm of quantum imaging without the need of measuring correlations.
Self-focusing in nonlinear Hatano-Nelson lattices
Authors: Komis I. , Ghatak A. , Musslimani Z. H. , Makris K. G.
Published: September 2024

We probe the interplay between Kerr nonlinearity and non-Hermiticity of a Hatano-Nelson lattice in the context of non-Hermitian photonics. In particular, we examine the relation between self-focusing and the skin effect under single-channel excitation.
Coherent Acoustic Phonons in Bi2Se3 Ultrathin Films Probed by Femtosecond, Optical Pump-Probe Spectroscopy
Authors: Cheng Jing , Niherysh Kiryl A. , Francis Peter , Chakraborty Debamitra , Lombardi Floriana , Erts Donats , Prischepa Serghej L. , Łaszcz Adam , Komissarov Ivan V. , Sobolewski Roman
Published: September 2024

The dynamics of coherent acoustic phonons in the Bi2Se3 layered crystal system are investigated. The findings reveal that the frequency evolution of breathing modes with the number of the material quintuple layers and the dispersion relation both can be explained by a modified chain model with a nonuniform coupling force.
Integrated Silicon Nitride Photon-Pair Source Based on Nonlinear Interferometers
Authors: Fu Zhaorong , Chen Xiaojiong , Jia Xinyu , Mao Jun , Wu Xianghao , Dai Tianxiang , Gong Qihuang , Wang Jianwei
Published: September 2024

We demonstrate an optimized Si3N4 chip-based parametric photon-pair source via spontaneous four-wave mixing process. Nonlinear interference and dispersion engineering yield high spectral purity without compromising heralding efficiency, offering a solution for integrated photon-pair sources with uniformity and wavelength flexibility.
Near-Infrared Photoswitching of Avalanching Nanoparticles
Authors: Lee Changhwan , Xu Emma Z. , Kwock Kevin W. C. , Ursprung Benedikt , Fardian-Melamed Natalie , Teitelboim Ayelet , Park Hye Sun , Kim Jongwoo , Nam Sang Hwan , Suh Yung Doug , Cohen Bruce E , Chan Emory M , Schuck P. James
Published: September 2024

We demonstrate indefinite and bidirectional photoswitching of avalanching nanoparticles (ANPs) using NIR excitations. This enables the 2-D and 3-D optical patterning on ANP films as well as super-resolution imaging of single ANPs with sub-Angstrom localization accuracy.
Probing Chiral Farfield Properties of Monolayer Transition Metal Dichalcogenides Coupled to Achiral Plasmonic Nanoantennas
Authors: Bucher Tobias , Fedorova Zlata , Abasifard Mostafa , Wurdack Matthias , Mupparapu Rajeshkumar , Najafidehaghani Emad , Knopf Heiko , George Antony , Eilenberger Falk , Pertsch Thomas , Turchanin Andrey , Staude Isabelle
Published: September 2024

We investigate the polarization of valley-specific emission from monolayer MoS2 coupled to a plasmonic nanoparticle. The chiral emission properties are lost for the hybrid system which we analyze in terms of excitation and emission.
Probing Molecular Chirality with a Tunable Achiral Plasmonic System
Authors: Biswas Aritra , Cencillo-Abad Pablo , Chanda Debashis
Published: September 2024

We demonstrate helicity preserving engineered chiral light on a tunable achiral nanostructured SEIRA-VCD platform that can enable precise detection and classification of diverse chiral compounds, reshaping drug design and biomolecular applications.
All-Optical Spin-Valve Effect in Nonlinear Optics
Authors: Izhak Shani , Karnieli Aviv , Yesharim Ofir , Tsesses Shai , Arie Ady
Published: September 2024

Inspired by spintronics, we theoretically demonstrate an all-optical spin-valve device and a spin-dependent beamsplitter, where the optical pseudospin is a superposition of signal and idler beams undergoing sum-frequency generation within a 2D nonlinear photonic crystal.
Spatial Avoided Crossing in Optical Emission of Site-Controlled Pyramidal Quantum Dots in Photonic Crystal Cavities
Authors: Huang Jiahui , Miranda Alessio , Dwir Benjamin , Rudra Alok , Kapon Eli , Wong Chee Wei
Published: September 2024

Interactions of site-controlled quantum dots with a high-order cavity mode of an L7-type photonic crystal cavity are resolved spatially and spectrally. We observed a spatial avoided crossing in polarization-resolved optical emission of quantum dots.
Designing Higher-Order Exceptional Points of Photonic Resonators by the Nilpotent Condition
Authors: Takata Kenta , Mock Adam , Notomi Masaya , Shinya Akihiko
Published: September 2024

We show that the nilpotence of matrices is effective for design of exceptional points. We reveal a series of Hamiltonians with third-order exceptional points exhibiting 3-vector chirality and numerically demonstrate one in photonic crystal cavities.
Ultrafast Plasmon-driven Charge and Spin Dynamics in Au-Ni Magnetoplasmonic Nanostructures
Authors: Tapani Tlek , Henriksson Nils , Deckert Thomas , Lin Haifeng , Ciuciulkaite Agne , Allerbeck Jonas , Rodríguez Alba Viejo , Vaccarelli Ornella , Kim Wonjung , Lee Heon , Kuttruff Joel , Garoli Denis , Vavassori Paolo , Kapaklis Vassilios , Brida Daniele , Maccaferri Nicolò
Published: September 2024

We study ultrafast charge and spin dynamics in magnetoplasmonic Au-Ni nanostructures. Experiments reveal modification of the ultrafast magnetization dynamics time induced by a strong plasmonic response, and the results are supported by numerical modelling.
The nonlinear optical response and electron dynamics in transparent conducting oxides
Authors: Un Ieng Wai , Sarkar Subhajit , Sivan Yonatan
Published: September 2024

We describe a Boltzmann-based model for the electron dynamics and thermal and optical properties of transparent conducting oxides, and show that it explains experimental findings with no need for any ad-hoc changes used so far.
Hybrid photonic integration of color centers in designer nanodiamond with SiN nanophotonic devices
Authors: Ngan Kinfung , Zhan Yuan , Dory Constantin , Vučković Jelena , Sun Shuo
Published: September 2024

We developed a new technique that enables deterministic assembly of diamond color centers in a SiN photonic circuit. Using this technique, we observed Purcell enhancement of SiV centers coupled to a silicon nitride ring resonator.
Site-Controlled SiN/SiO2 Single Photon Sources Coupled to Silicon Nitride Integrated Photonics
Authors: Peana Samuel , Yesilyurt Omer , Senichev Alexander , Martin Zachariah O. , Lagoutchev Alexei S. , Kildishev Alexander , Boltasseva Alexandra , Shalaev Vladimir M.
Published: September 2024

We demonstrate an industrially scalable fabrication process for the integration of SiN/SiO2 single photon emitters into on-chip nanophotonic structures with sub-diffraction limited placement accuracy.
A Recurrent Multiport Interferometer Architecture for Fault-Tolerant Programmable Photonics
Authors: Crisan Mihai , Carpenter David A. , Arafin Shamsul
Published: September 2024

We propose a novel multiport interferometer architecture that uses optical recursion to mitigate hardware errors and scales as O(N). We also show that it is possible to construct perfect transformations with imperfect beamsplitters meshes.
Investigation of Efficient Microwave Control of Unstrained Negatively Charged Group-IV Color Centers in Diamond
Authors: Pieplow Gregor , Belhassen Mohamed , Schröder Tim
Published: September 2024

This work theoretically investigates the microwave control of group-IV color centers. We find that heavy vacancies such as the tin and lead vacancy can be efficiently controlled without external strain.
Quantum digital signatures over entanglement-based deployed campus network
Authors: Chapman Joseph C. , Alshowkan Muneer , Qi Bing , Peters Nicholas A.
Published: September 2024

The quantum digital signature protocol offers a replacement for aspects of public-key digital signatures. Here, we demonstrate and characterize hardware to implement entanglement-based quantum digital signatures over our campus network, validating use in deployed fiber.
Polarization manipulation and multiplexing via optical metasurfaces: from classical to quantum
Authors: Peng Ruwen , Liu Yongmin , Wang Mu
Published: September 2024

Traditional optical elements, such as waveplates and polarization beam splitters, are essential for classical and quantum information techniques. Yet their bulky size and heavy weight are prejudicial for miniaturizing information systems. Here, we present our recent studies on polarization manipulation and multiplexing with optical metasurfaces, which significantly miniaturize optical systems. One is to break the limitation of polarization multiplexing in optical metasurfaces with engineered noise, and the other is to realize multichannel distribution and transformation of entangled photons with dielectric metasurfaces. The approaches achieve potential applications in high-capacity optical displays, data storage, information encryption, and quantum information networks.
Molecular Complex Dieletric Functions via Spectrally-Resolved Hong-Ou-Mandel Interference
Authors: Proppe Andrew H. , Jordan Kyle M. , Sussman Benjamin J. , Lundeen Jeff S.
Published: September 2024

We present results on the use of spectrally-resolved Hong-Ou-Mandel interference for use in precision spectroscopy. Our scheme allows for simultaneous measurement of a sample’s absorption and phase spectra while reducing the effects of shot noise.
A High Intensity Cold Atom Source
Authors: Glick Jeremy , Huntington William , Heinzen Daniel
Published: September 2024

A method for producing a high intensity cold atomic beam is discussed. The method is based on post-nozzle seeding of lithium into a supersonic helium jet.
High Harmonic Generation by Bright Squeezed Vacuum
Authors: Rasputnyi Andrei , Birk Michael , Chen Zhaopin , Cohen Oren , Krüger Michael , Kaminer Ido , Chekhova Maria , Tani Francesco
Published: September 2024

We present the first observation of non-perturbative high-harmonic generation driven by nonclassical light, namely bright squeezed vacuum. Compared to classical light, bright squeezed vacuum leads to higher efficiency, different power scaling, and unique photon-number distributions.
Selective anti-Stokes excitation of a single defect center in hexagonal boron nitride
Authors: Okashiro Yudai , Takashima Hideaki , Shimazaki Konosuke , Suzuki Kazuki , Mukai Yu , Aharonovich Igor , Takeuchi Shigeki
Published: September 2024

The suppression of short-wavelength emission and the appearance of an anti-bunching dip in the second-order correlation function (g2(0) = 0.4) are realized by exciting hexagonal boron nitride (hBN) nanoflakes with multiple defects via anti-Stokes excitation.
Time-reflection in a discrete synthetic photonic lattice
Authors: Palatnik Alexander , Plotnik Yonatan , Görsch Julia , Steinfurth Andrea , Szameit Alexander , Segev Mordechai
Published: September 2024

We demonstrate time-reflection of optical wavepackets propagating in time-modulated synthetic lattice based on coupled optical fiber loops. Time-reflection arises from a temporal boundary created by an abrupt change in the lattice parameters.
Photon Correlations of Scintillation Light and its Application to Scintillator Characterization
Authors: Kasten Noam , Katznelson Shaul , Tziperman Offek , Shultzman Avner , Strassberg Rotem , Dosovitskiy Georgy , Bekenstein Yehonadav , Roques-Carmes Charles , Kaminer Ido
Published: September 2024

We measure the second-order coherence function g(2) of scintillators and show how this measurement enables extracting important scintillator properties: lifetime, scintillation yield, and energy resolution, all extracted using a simple X-ray tube.
Ultrafast Bright Squeezed Vacuum in Nearly Single Spatio-Temporal Mode
Authors: Cusson P. , Rasputnyi A. , Tani F. , Seletskiy D. , Chekhova M.
Published: September 2024

We demonstrate nearly single-mode bright squeezed vacuum sources with unprecedentedly high peak power (with mean values up to tens of MW) and few-cycle durations, which enable accessing the non-perturbative regime of light-matter interaction.
Self-Tunable Nonlinear Generation in Metasurfaces
Authors: Almeida Euclides , Feinstein Matthew , Blechman Yael , Andronikides Alexander
Published: September 2024

We realize a frequency-converting nonlinear metasurface that can be self-tuned by pumping with strong fields. The tunability is attained via quantum nonlinearities, opening up new ways of engineering quantum effects in nonlinear metasurfaces.
Enhanced Nonlinear Up-Conversion Imaging by Lithium Niobate Metasurfaces
Authors: Morales Rocio Camacho , Valencia Laura , Zhang Jihua , Staude Isabelle , Sukhorukov Andrey A. , Neshev Dragomir N.
Published: September 2024

We demonstrate infrared imaging by nonlinear up-conversion to the visible in a high-quality-factor lithium niobate resonant metasurface. Images with high conversion efficiency and resolution quality are obtained despite the strong nonlocality of the metasurface.
Dynamics of Second-Harmonic Generation in Bilayer Nonlinear Metamaterials
Authors: Ben-Haim Danielle , Ellenbogen Tal
Published: September 2024

We study the dynamics of second-harmonic generation from a nonlinear plasmonic metamaterial composed of two layers with geometric phase difference, as a foundation for designing efficient and tunable multilayered nonlinear metamaterials.
Optical Trapping with Inversely Designed Plasmonic Nanotweezers with Multiple Resonances
Authors: Nelson Damian , Barlow Anders J. , Qi Xiao , Chan Emory , Cohen Bruce , Bonin Gus , de Gille Robert , Azar Nima Sefidmooye , Luo Wei , Mulvaney Paul , Kim Sejeong , Crozier Kenneth B.
Published: September 2024

We optically trap 20 nm polystyrene nanospheres with inversely designed plasmonic aperture nanotweezers. These have two resonances that produce strong near-field enhancement across a common nanogap, with the goal of simultaneously enhancing absorption and emission.