bluuebunny/crossref_metadata_2025 huggingface dataset:
Engineering magnetism in layered antiferromagnets metal thiophosphates MPX3 for novel photonic processes
Authors: Basnet Rabindra , Shah Manoj Kumar , Ruzindana Joel Benjamin , Hu Jin , Mortazavi Mansour
Published: September 2024

This work focuses on engineering magnetism in magneto-optical materials MPX3 by substitution and intercalation, which reveals efficient tuning of magnetic interactions and anisotropies. Such tunable magnetism provides platforms for novel photonic processes in layered magnets.
Fast, Single Shot Readout for Whispering Gallery Mode Resonator Device
Authors: Weinstein Haley , Zhang Jiayuan , Tadigadapa Srinivas , Habif Jonathan L.
Published: September 2024

We demonstrate a coherent detection technique for fast, sensitive readout of whispering gallery mode resonators in borosilicate glass. The results indicate resonance measurement at nanosecond time scales with sensitivities comparable to low-speed direct detection readout.
Propagation-variant vortex array in multimode silicon waveguide
Authors: Li Yunlong , Wang Kaiyuan , Wu Tiange , Liu Deming , Zheng Shuang , Zhang Minming
Published: September 2024

We propose a method to generate in-plane vortex arrays with multimode silicon waveguides. By combining different modes in the silicon waveguide, space- and propagation-variant vortex arrays can be generated in a controlled manner.
Fiber-coupled high numerical aperture microlens system: towards super-resolution microscopy via photonic nanojets
Authors: Gao Xuesong , Agha Imad
Published: September 2024

We demonstrate both numerically and experimentally, a path towards super-resolution focusing and imaging through the photonic nanojet technique in a microsphere-microstructure fiber platform.
Inverse design of digital nanophotonic devices using adversarial autoencoder neural networks with physically-segmented latent space
Authors: Wang Kaiyuan , Li Yunlong , Hu Qiaomu , Liu Deming , Zheng Shuang , Zhang Minming
Published: September 2024

We propose adversarial autoencoder neural network with physically-segmented latent space for the inverse design of digital nanophotonic power splitters with accurate arbitrary splitting ratios (relative error < 3%) and low insertion loss (< 0.5 dB).
Evaluation on Beam Trajectory Bending Functionality of Distorted Photonic Crystals
Authors: Kitamura Kyoko , Hashizume Jimpei , Kawamoto Yuki , Onishi Ayano
Published: September 2024

We evaluate beam trajectory bending functionality of distorted photonic crystals (DPCs) by defining standardized response index of “softness.” We show that the shape-DPC is equivalent to the position-DPC.
Plasmonic Littrow Retroreflectors
Authors: Bidney Grant W. , Anisimov Igor , Walker Dennis E. , Ariyawansa Gamini , Duran Joshua M. , Astratov Vasily N.
Published: September 2024

It is shown that Littrow retroreflectors show an interplay of the grating properties (“structure factor”) and plasmonic resonant properties (“form factor”) which leads to highly efficient simultaneous retroreflector performance in both polarizations of visible light.
Scalable Two-Tier Protruding Micro-/Nano-Optoelectrode Arrays for Hybrid Photonic-Electronic Nano-Bio Interfacing
Authors: Mejia Elieser , Zhao Yuming , Zhou Wei
Published: September 2024

We introduce scalable two-tier protruding micro-/nano-optoelectrode arrays, integrating biophotonic and bioelectronic functionalities with high nanoplasmonic Raman enhancement and reduced interfacial impedance, crucial for in situ bioelectrical and biochemical measurements in multicellular systems.
Experimental Demonstration of Inverse Designed All Silicon Nanowire Array Cavity
Authors: Takiguchi M. , Heidt P. , Sumikura H. , Shinya A. , Notomi M.
Published: September 2024

We optimized a Si nanowire array using a novel inverse design method and measured a high-Q cavity and its thermal nonlinear effect by implementing a waveguide structure.
Wavelength and 3D-Slice Multiplexing in Waveguide Meta-hologram
Authors: Sinha Rajat Kumar , Mojahedi Mo
Published: September 2024

A novel wavelength and 3D-slice multiplexing for waveguide meta-hologram using dislocated grating is proposed. Phase modulation is optimized to form four alphabets letters using 532nm and 650nm wavelengths at screen distances of 50µm and 100µm.
Active stabilization of normal-dispersion microcombs
Authors: Manetta Angelo , Karunakaran Anamika nair , Varming Poul , Montague Patrick
Published: September 2024

This paper presents a study of the stability over time of the properties of microcombs. An active stabilization scheme of the pump frequency is tested, with the result of decreasing the comb line frequency noise.
Integration of Novel Ferro-Electric Thin Films in Silicon Photonics for High Speed Modulators
Authors: Lievens Enes , Picavet Ewout , Muneeb Muhammad , De Buysser Klaartje , Van Thourhout Dries , Bienstman Peter , Beeckman Jeroen
Published: September 2024

Lead zirconate titanate (PZT) exhibits a large Pockels coefficient and remnant polarization, making it a suitable candidate for integration in photonics circuits. In this work, a platform is developed to directly integrate PZT thin films on silicon-on-insulator (SOI) wafers to create electro-optic (EO) modulators.
Inverse-design based Ultra-wideband Wavelength-band Demultiplexer over 110nm Bandwidth Covering S+C+L band
Authors: Zhou Chuhang , Li Jianping , Qin Yuwne
Published: September 2024

We propose an inverse-design based ultra-wideband wavelength-band de-multiplexer with insertion loss and inter-band crosstalk lowering than 0.5 dB and -20 dB respectively over 110nm operational bandwidth in the S+C+L wavelength range.
Complex Tensor Convolution in Photonic Frequency Synthetic Dimensions
Authors: Guo Jiayuan , Zhang Wenjia , Jiang Yue , He Zuyuan
Published: September 2024

We propose a complex tensor convolution accelerator in photonic frequency synthetic dimensions, which is capable of extracting coupling information from dual-frame images of size 52×42 at a rate of 4.94M frame-per-second.
Free Electron Emission from Two-dimensional Material Heterostructures
Authors: Wang Zhexuan , Liu Fang , Cui Kaiyu , Feng Xue , Zhang Wei , Huang Yidong
Published: September 2024

We achieved free electron emission based on planar-type two-dimensional material heterostructures experimentally. By applying electric voltage of only 20V, maximum emission current density over 7mA/cm2 and steady operation for hours is realized.
Wafer-Scale Manufacturing of Photonic Molecule Microcombs
Authors: Girardi Marcello , López Ortega Carmen H. , Helgason Óskar B. , Rebolledo-Salgado Israel , Torres-Company Victor
Published: September 2024

We demonstrate 98% yield of photonic molecule microcombs manufactured on a 4-inch silicon nitride wafer. Dissipative Kerr soliton microcombs with average power conversion efficiency above 50% (25th percentile of 50.3%) are achieved.
Wide Spectral Modulation in Highly Efficient Thermally Undercut Foundry Fabricated Resonant Modulators
Authors: Gebregiorgis Yonas , Rizzo Anthony , Deenadayalan Venkatesh , van Niekerk Matthew , Leake Gerald , Tison Christopher , Novick Asher , Coleman Daniel , Bergman Keren , Fanto Michael , Preble Stefan
Published: September 2024

We experimentally investigate optical modulation in thermally undercut microdisk modulators. Optical modulation is realized over a spectral range 6x wider than the resonator’s linewidth due to the enhancement of optically induced thermal nonlinearity.
Classical vs. Quantum Effects in the Coupling of Photons with Free Electrons
Authors: Kfir Ofer
Published: September 2024

I discuss selected eˉ-photon coupling phenomena through the prism of their quantumness, point to the parameters at which a system behavior transits from quantum to classical, and explain the implications of quantum effects.
AI-Driven Laser Parameter Optimization for Enhanced Pseudocapacitor Electrodes
Authors: Khosravinia Kavian , Kiani Amirkianoosh
Published: September 2024

We present an optimization approach for fabricating pseudocapacitor electrodes via picosecond laser pulses, incorporating artificial neural networks and simulated annealing. The optimized samples exhibit superior capacitive performance, with enhanced current density and charge depletion time.
Ultra-Sensitive Fiber Bragg Grating Sensor Based on Optoelectronic Oscillator with Optically Injected DFB-LD
Authors: Chen Hao , Lin Jiahui , Zhu Chen
Published: September 2024

A fiber Bragg grating (FBG) sensor based on an optoelectronic oscillator (OEO) with an optically injected distributed feedback laser diode is proposed and experimentally demonstrated, showing a linear and high temperature sensitivity of -0.973 GHz/°C .
Surface-Enhanced Infrared Absorption with Photonic Crystal Guided Resonances
Authors: Lin Jin-Yen , Weng Chi Ting , Huang Tzu-Hsun , Huang Wei-Chang , Liaw Jia-Wun , Chen Tsung-Bo , Liu Jui-Nung
Published: September 2024

We numerically demonstrate EIA-like mid-infrared absorption enhancement of a deep-subwavelength-thick molecular layer by more than an order of magnitude with a high-Q photonic crystal guided resonance (PCGR).
Machine Learning-Enhanced Sapphire Fiber Bragg Grating for Fast, Resilient and High-Accuracy Temperature Sensing
Authors: Liu Xiao , Liu Bo , Zhu Chen
Published: September 2024

This study introduces a robust and fast temperature sensing approach using a machine learning-assisted sapphire fiber Bragg grating configuration, achieving high accuracy (0.23℃) at 5 kHz acquisition rate and robust resilience to environmental vibrations.
Reduction of Additive Phase Noise of Electrical Amplifiers for Electronic-Photonic Low Noise Signal Generation
Authors: Shirmohammadi Pedram , Bowers Steven M.
Published: September 2024

A low-phase noise amplifier featuring 17.2 dB peak gain and -152 dBc/Hz additive phase noise at 10 GHz is presented. The study explores strategies for reducing phase noise by trading-off amplitude and phase noise.
High-Speed Optical Sampling via Repetition Rate Switching of an Optically-Injected Mode-Locked Laser Diode
Authors: Ribeiro Ana Filipa , Gomes Tiago dos Santos , Cataluna Maria Ana
Published: September 2024

We demonstrate high-speed parallel heterodyne interferometry via repetition rate exchange through direct square-wave modulation of the repetition rate of an optically-injected mode-locked quantum-dot laser, showing potential for less demanding RF specifications and significant cost reduction.
Energy Transfer Between Alq3 Molecules and Si Revealed by Pump-Probe Spectroscopy
Authors: Tai Yu-Chan , Tzeng Wen-Yen , Lin Jhen-Dong , Kuo Yi-Hou , Chen Fu-Xiang Rikudo , Tu Ruei-Jhe , Huang Ming-Yang , Pai Shyh-Shii , Chang Nick Weihan , Tseng Sheng-Yang , Chen Chi , Lin Chun-Liang , Yabushita Atsushi , Cheng Shun-Jen , Luo Chih-Wei
Published: September 2024

We employ ultrafast optical pump-probe spectroscopy to reveal the energy transfer (ET) mechanism between organic Alq3 molecules and Si. Inserting ultrathin SiO2layers between Alq3 and Si exposes SiO2-thickness-dependent relaxation dynamics of photoexcited carriers and discloses ET from Alq3 to Si, comparable with a dipole-dipole interaction model.
Does Quantum Interference Control of injected Photocurrents Produce a Current or Voltage?
Authors: Gong Yiming , Cundiff Steven T.
Published: September 2024

We address the question “Does Quantum Interference Control (QuIC) of injected Photocurrents Produces a Current or Voltage?” by studying the dependence on external resistance for Schottky- and Ohmic- contact devices, resolving a long-standing puzzle.
Quantum Enhanced Nonlinear Spectroscopy of Photonic Microcavities
Authors: Kumar Evan J. , Uboldi Lorenzo , Malatesta Ravyn , Rojas-Gatjens Esteban , Cruz Andy , Menon Vinod , Cerullo Giulio , Moretti Luca , Kandada Ajay Ram Srimath
Published: September 2024

Quantum entangled photons are suggested as an optical probe to isolate specific many-body interactions in molecular materials and improve upon measurement sensitivity in conventional nonlinear spectroscopy experiments.
The Polarization Dependence of QuIC Injected Photocurrents Reveals Current Injection Tensors
Authors: Gong Yiming , Cundiff Steven. T.
Published: September 2024

We study current injection tensors of Quantum interference control (QuIC) processes by measuring their dependences on single-polarization rotation. We show that the direction of QuIC photocurrents is determined by the polarization of odd-order optical absorptions.
Plasma Density Effects on the Diffraction Efficiency of Ionization Gratings
Authors: Perez-Ramirez V.M. , Fasano N.M. , Wang M.M. , Ou K. , Cao S. , Giakas A.M. , Michel P. , Mikhailova J.M. , Edwards M.R.
Published: September 2024

We present an experimental characterization of how the diffraction efficiency of an ionization plasma grating increases with plasma density. Grating performance follows trends predicted by optical theory, suggesting a path to ultra-high-damage-threshold optics.
Large Saturation Absorption of Resonant Aluminum Metasurfaces
Authors: Xie Hailun , Gui Lili , Xu Kun
Published: September 2024

We experimentally demonstrate that an aluminum metasurface is prospective saturable absorber with significant modulation depth (9.56%) under a low incident fluence of 25 μJ/cm2, due to local-field enhancement by surface lattice resonance in the near-infrared.
Statistics of Singularities in the Complex Plane
Authors: Kurtz Israel , Joshi Krishna , Genack Azriel Z.
Published: September 2024

We explore densities of the poles and transmission zeros in the complex plane in the crossover to new channels introduced by widening the sample or increasing the frequency of the incident wave.
Complex Photonic Media and their Interfaces: Space-Time Speckle Correlations
Authors: Dawda Shubham , Dogariu Aristide
Published: September 2024

We demonstrate the existence of novel space-time speckle correlations in multiply scattering media and use them to assess the evolution of randomness from the optical interface to far away into the bulk of scattering media.
Broadband Filters Based on Tilted Waveguide Bragg Gratings Written in Bulk Glass by Femtosecond Laser
Authors: Wu Jiaming , Shu Xuewen
Published: September 2024

We demonstrate the first tilted waveguide Bragg grating inscribed in bulk glass by femtosecond laser, which can be used to achieve broadband filtering, and the bandwidth can be adjusted from 10 nm to 350 nm.
Classification of pre-cancerous human oral tissue using FTIR spectroscopy aided by machine learning
Authors: Talukdar P.J. , Bharti K. , Basu S. , Pal M. , Paul R. R. , Lahiri P. , Lahiri B.
Published: September 2024

We presented FTIR spectroscopy to analyze vibrational assessments of oral precancerous tissue of various grades. Classification model based on spectra of protein sections (amide I and amide III band) yields 83.33% sensitivity and 84% accuracy.
Optical biosensor for non-invasive detection of medical biomarkers
Authors: Zadura Magdalena , Głowadzka Weronika , Bogdanowicz Karolina , Polak Piotr , Jankowska-Śliwińska Joanna , Kosiel Kamil , Piskorski Krzysztof , Ekielski Marek , Czyszanowski Tomasz , Szerling Anna
Published: September 2024

A novel optical biosensor specifically designed to identify glucose or oncoproteins is presented. It is subwavelength quasi-periodic structure, made of polymer and coated with inorganic layers with properly designed thickness to reveal Fano resonance peak.
Fabrication of sapphire single crystal fiber with high length-to-diameter ratio via the LHPG method
Authors: Gao X. B. , Liu X. , Cai K. D. , Chen Y. , Liu B.
Published: September 2024

We report a continuous growth of single-crystal sapphire fiber over 15hours without any interruption. The obtained sapphire fiber is 1.5 meters long with a diameter variation mostly around ±5µm.
Transient gas pinhole based on saturated absorption for high energy ultraviolet lasers
Authors: Ou Ke , Perez-Ramirez Victor M. , Lee Jin , Edwards Matthew R.
Published: September 2024

We propose a novel pinhole design with much higher damage thresholds than traditional pinholes by leveraging the saturated absorption of ultraviolet light in ozone. Compact and robust soft-edge spatial filtering was demonstrated experimentally.
OFDR-based high-temperature-resolution sensing by using TC-HNA sensing fiber and deep-learning denoising
Authors: Zhang Zhaopeng , Peng Wei , Ma Lingmei , Zhu Chen
Published: September 2024

Combining TC-HNA sensing fiber and a deep-learning denoising technique, a temperature resolution of 0.29
◦
C on a 50-m fiber with a spatial resolution of 1 mm based on an OFDR system is experimentally achieved.
Wide bandwidth TM tunable vernier rings for heterogeneously integrated lasers
Authors: Henry Nathan C. , Martinez William M. , Sovinec Courtney L.H. , Friedmann Tom , Arterburn Shawn , Starbuck Andrew , Dallo Christina , Pomerene Andrew , Trotter Douglas , Lentine Anthony , Kodigala Ashok
Published: September 2024

We present a novel design of a III-V-on-silicon heterogeneously integrated tunable ring laser, achieving >80 nanometers of tuning bandwidth, the widest conceived using only two rings, fostering many applications such as spectroscopy and beam steering.
Waveguide Integrated Germanium Photocells in Silicon
Authors: Sjaardema T. , Dallo C. , Starbuck A. , Pomerene A. , Trotter D. , Gehl M. , Kodigala A.
Published: September 2024

We demonstrate for the first time waveguide integrated cascaded germanium photodetector arrays operated as photocells. We characterize several different array designs, and discuss their effects on voltage and photocurrent performance parameters.
On scalability of static 940 nm VCSEL arrays
Authors: Gretter Stefano , Maaßdorf Andre , Weyers Markus
Published: September 2024

Static light-current-voltage (LIV) curves, spectrum, and far-field o f oxide-confined 7,19,100, and 312 vertical-cavity surface-emitting laser (VCSEL) arrays centered at 940 nm were collected to quantify scalability limits set by thermal coupling.
Electrically Injected GeSn Laser Operating up to 135 K
Authors: Acharya Sudip , Zhou Yiyin , Amoah Sylvester , Jha Rajesh Kumar , Du Wei , Li Baohua , Yu Shui-Qing
Published: September 2024

We demonstrated electrically injected GeSn laser with the threshold of 800 A/cm2 at 77 K. The decreased threshold compared to previous results was achieved by reducing optical loss and improving the optical confinement. The peak power was measured as 1.25 mW/facet at 77 K. At 135 K, the emission peak is at 2656 nm.
Experimental demonstration of optical waveform transmission with multiple-eigenvalue 16-APSK modulation
Authors: Huang Tao , Li Jianping , Qin Yuwen , Yu Xinkuo , He Jianqing , Zhou Gai , Fu Songnian
Published: September 2024

We experimentally demonstrate the optical waveform transmission with multiple eigenvalues and parameter optimization, and the transmission of 30-eigenvalue 8-ns soliton pulses with 16-APSK over 200km NZ-DSF has achieved with BER of 5.9E-3.
Spatiotemporal Torquing of Light
Authors: Hancock S. W. , Zahedpour S. , Goffin A. , Milchberg H. M.
Published: September 2024

We show transverse orbital angular momentum can be imparted to light pulses in the spatiotemporal domain for sufficiently fast and spatiotemporally overlapped transient perturbations and/or the removal of energy from a pulse having spatiotemporal phase.
Machine Learning assisted Structured Light Demultiplexing using Nanostructures
Authors: Badavath Purnesh Singh , Sharma Chayanika , Supraja P , R Rakesh Kumar , Kumar Vijay
Published: September 2024

Interaction of high-dimensional structured light beams with randomly grown ZnO-nanosheets of uniform distribution results in information carrying speckle patterns. Supervised deep learning model, trained on the speckle patterns classifies structured light beams with >96% accuracy.
Optical Nonlinear Dynamics of High-Speed Silicon Microring Modulators
Authors: Shateri Farshid , Geravand Alireza , Shi Wei
Published: September 2024

We present a comprehensive dynamic model for microring modulators, encompassing optical nonlinear and self-heating effects. Our simulation aligns with experiments with different input optical powers, predicting significant bandwidth enhancement for operations exceeding 50 GHz.
Characterization of Chirped Bragg Grating for Ultrafast Excitation of Rydberg Atoms
Authors: Maity Arnab , Matsubara T. , Mahesh T.P. , Chew Y. , Tomita T. , de Léséleuc S. , Ohmori K.
Published: September 2024

We precisely determine the chirp rate of a chirped Bragg grating, a highly dispersive optics with promising applications for spectral shaping of picosecond pulsed laser used for ultrafast Rydberg excitation.
Imaging Quantum Spatial Modes
Authors: Gabaldon Charris , Barge Pratik J. , Cuozzo Savannah L. , Cohen Lior , Lee Hwang , Novikova Irina , Mikhailov Eugeniy E.
Published: September 2024

We expand on classical single pixel camera methods using a set of structured spatial masks to image quantum field spatial modes in a combination of a single squeezed and thermal mode via quadrature homodyne measurements.
Quantum Interference Enhancement and Fluorescence Spectra Modification via Dielectric Mie Resonances
Authors: Liu Qi , Shan Lingxiao , Jia Yali , Ma Yun , Gong Qihuang , Gu Ying
Published: September 2024

By placing a four-level system near a high-index dielectric nano-sphere, we find Mie resonances can induce almost maximum quantum interference (QI) factor. The large QI can be flexibly modulated and generate a sub-natural-linewidth fluorescence spectrum.
Simultaneous Spectral Broadening and Frequency Doubling in an Aperiodically-Poled Lithium-Niobate Crystal
Authors: Herda Robert , Friedenauer Axel
Published: September 2024

We demonstrate a novel method to generate spectral bandwidth during the frequency-doubling process in a non-periodically poled quasi-phase matched crystal. We can compress and frequency double the pulses of a 177 fs laser at 1560 nm down to 71 fs with an efficiency of 40%.
A Fiber-based Microcavity for Color Centers in Diamond Membranes
Authors: Fischer Julius , Herrmann Yanik , Brevoord Julia M. , Sauerzapf Colin , Wienhoven Leonardo G. C. , Feije Laurens J. , Pasini Matteo , Eschen Martin , Ruf Maximilian , Weaver Matthew J. , Hanson Ronald
Published: September 2024

We report on the realization of a fiber-based microcavity, exhibiting low cavity length fluctuations in combination with full spatial and spectral tunability. The microcavity is used to demonstrate Purcell-enhancement of diamond Tin-Vacancy centers.
Heralded Noiseless Transmission of Path-Entangled Quantum States Over Lossy Channels
Authors: Nunn Cory M. , Jones Daniel E. , Pittman Todd B. , Kirby Brian T.
Published: September 2024

We show that noiseless attenuation combined with noiseless amplification allows multi-partite entangled states to be conditionally transmitted across lossy channels with arbitrarily high fidelity. In special cases (e.g., W states), noiseless amplification alone is sufficient.
Nonlinear Telescope for Spatially Uniform Spectral Broadening
Authors: Drake James , Tamer Issa , Kiani Leily
Published: September 2024

We report the development of a nonlinear telescope to generate uniform spectral broadening across a Gaussian beam. We introduce “broadening-in-the-bucket” as an alternative metric to the compression factor for evaluating broadening efficiency.
Quantum Network Utilizing Mutiple Channels Based on Cavity-QED and Continuous-Variable Codes
Authors: Li Pei-Zhe , Dias Josephine , Munro William J. , van Loock Peter , Nemoto Kae , Piparo Nicoló Lo
Published: September 2024

We present quantum repeater networks utilizing rotation-symmetric bosonic codes to enhance the performance of long-distance quantum communication. By adding multiple channels, it can be further improved and the requirements are within state-of-art technology.
Deterministic polarization entanglement generation via wavelength division multiplexing for long distance distribution
Authors: Cheng Xiang , Chen Yujie , Chang Kai-Chi , Sarihan Murat Can , Wong Chee Wei
Published: September 2024

We demonstrated deterministic polarization entanglement generation via wavelength division multiplexing, and prepared four polarization Bell states over three frequency channel pairs. Wavelength-multiplexed polarization entangled states are distributed over 50 km fiber with high fidelity.
Asymmetric Hong-Ou-Mandel Revival Interferences in a Singly-Filtered Biphoton Frequency Comb
Authors: Chang Kai-Chi , Cheng Xiang , Chen Yujie , Chin Hsiao-Hsuan , Sarihan Murat Can , Song Sophi Chen , Wong Chee Wei
Published: September 2024

We observed first asymmetric Hong-Ou-Mandel (HOM) revival interferences in a singly-filtered biphoton frequency comb. We measure up to 10 time-bins, and the witnessed central HOM dip has an accidental-subtracted visibility of 72.95 ± 0.8%.
Bright Source of Visible Entangled Photon Pairs for Satellite QKD
Authors: Vendromin Colin , Sipe J. E. , Liscidini Marco , Bajoni Daniele
Published: September 2024

We propose a source of visible entangled photon pairs encoded in multiple frequency bins of a ring resonator, with predicted generation rates of ~ 10MHz/(mW)2, offering potential applications in satellite QKD.
Foundry-fabricated photonic integrated circuit for flex-grid entanglement distribution
Authors: Miloshevsky Alexander , Lu Hsuan-Hao , Cohen Lucas M. , Myilswamy Karthik V. , Fatema Saleha , Alshowkan Muneer , Weiner Andrew M. , Lukens Joseph M.
Published: September 2024

We demonstrate a silicon photonic integrated circuit fabricated through the CMOS manufacturing process, which features a bidirectionally pumped microring to achieve over 116 high-fidelity polarization entangled channels covering the entire optical C+L-band for flex-grid entanglement distribution.
Bandstructure Engineered Nonlinear Activation Unit for Photonic Neural Networks
Authors: Xu Zheheng , Addamane Sadhvikas , Burghoff David
Published: September 2024

Using intersubband nanostructures, we introduce the smallest possible opto-electronic approach for nonlinear processing in photonic neural networks, demonstrating 3.5 µW threshold and 10 ps optical response within a device that is only 4 µm long.
Popper’s Conjecture: Using Angular Ghost Diffraction to Investigate the Uncertainty Principle
Authors: Gounden Neelan , Epstein Jenna , Ornelas Pedro , Beck Geoff , Nape Isaac , Forbes Andrew
Published: September 2024

Angular position and orbital angular momentum (OAM) states of photons are used to show that the uncertainty principle for an entangled photon passing through a ‘ghost’ slit has a finite limit which is source dependent.
Fresnel Diffraction of High-Dimensional Biphoton Wavefunctions: Computational Method and Characterization
Authors: Brown Charlotte , Dunham Jake , Zhao Haoqi , Hu Chenfei , Feng Liang , Gao Zihe
Published: September 2024

Nonclassical biphoton wavefunctions reside in a higher-dimensional Hilbert space than classical or single-photon wavefunctions. Using the separability that holds for both spatial and multi-photon dimensions, we generalize FFT-based computational Fourier optics techniques to biphoton wavefunctions.
Efficient General Waveform Catching by a cavity at an Absorbing Exceptional Point
Authors: Farhi Asaf , Dai Wei , Kim Seunghwi , Alu Andrea , Stone A. Douglas
Published: September 2024

We show that a cavity at an absorbing exceptional point captures additional temporal orders of any incoming waveform, resulting in efficient passive state transfer and photon detection.
Temporal phase characterization of picosecond pulsed squeezed vacuum
Authors: Xu Zicong , Nitanai Sho , Ozeki Yasuyuki
Published: September 2024

We propose a method to measure the temporal phase of ultrashort pulsed squeezed vacuum. We verified that the temporal chirp has limited influence on pulsed squeezing level.
Ultra-compact, Tunable Photon Pair Source for Pulsed Temporal-mode Encoding
Authors: Ye Liao , Ma Haoran , Wang Yuehai , Yang Jianyi
Published: September 2024

We demonstrate the generation of pulsed temporal-mode encoding quantum states via spontaneous four-wave mixing using two micro-ring resonators on the silicon-on-insulator (SOI) platform. The output is tunable between separable states and two-dimensional entangled states.
Refractive Index Measurement by the Plasmonic Hong-Ou-Mandel Interferometry
Authors: Yoon Seungjin , Choi Yu Sung , Tame Mark , Yoon Jae Woong , Polyakov Sergey V. , Lee Changhyoup
Published: September 2024

We theoretically propose a quantum plasmonic sensor using Hong-Ou-Mandel interferometry to measure a refractive index embedded in the plasmonic beamsplitter. There is quantum advantage in terms of the Fisher information.
Wideband Output of Phase Sensitive Amplification Enables High-resolution Phase Retrieval from Amplitudes
Authors: Hu Guyue , Dong Xin , Kang Jiqiang , Xu Yiqing , Wong Kenneth K. Y.
Published: September 2024

A novel phase sensitive amplification (PSA) with a wideband output is presented. The phase retrieval capability of the PSA scheme is experimentally demonstrated, with the reading range extended to 2π through a phase unwrapping algorithm.
Quantum Enhanced Mechanical Rotation Sensing using Wavefront Photonic Gears
Authors: Yesharim Ofir , Tshuva Guy , Arie Ady
Published: September 2024

We demonstrate a compact and efficient rotation sensing mechanism that uses structured light and is enhanced by bright N00N states. It uses two opposite spiral phase plates that convert mechanical rotation to wavefront phase shifts.
Machine Learning-Enhanced Quantum State Tomography with Direct Parameter Estimations
Authors: Hsieh Hsien-Yi , Chen Yi-Ru , Ning Jingyu , Wu Hsun-Chung , Chen Hua Li , Shi Zi-Hao , Wang Po-Han , Yang Popo , Steuernagel Ole , Wu Chien-Ming , Lee Ray-Kuang
Published: September 2024

Instead of using the reconstruction model in training a truncated density matrix, we develop a high-performance, lightweight, and easy-to-install supervised characteristic model by generating the target parameters directly.
Single-Photon Entangled W-States in Discrete Dimension of a Waveguide
Authors: Sivan Amir , Kam Amit , Bartal Guy , Orenstein Meir
Published: September 2024

We generate W-states from single photons in a single waveguide by employing modes as a discrete synthetic dimension. This is realized by a structure enabling hopping in the modes ladder.
A Platform for Designing Bipartite Entangled Quantum Frequency Combs via Silicon Nitride Microring Resonators
Authors: Li Nianqin , Ji Bo , Shen Yang , He Guangqiang
Published: September 2024

We build a platform for designing bipartite entangled quantum frequency combs via on-chip Si3N4 microresonators. Our platform supports 12 continuous-variable quantum modes, of which the entanglement degree can be finely regulated by adjusting cavity temperature.
Mid-infrared dark soliton combs and telecom bright soliton combs in silicon nitride microring resonators
Authors: Wu You , Ye Feng , Li Qian
Published: September 2024

We propose a dual-CW pumping approach to generate a mid-infrared dark soliton comb and a telecom bright soliton comb by the cross-phase modulation effect in a SiN microresonator.
Femtosecond pulse generation from a cw-driven degenerate optical parametric oscillator
Authors: Sanchez A. D. , Kumar S. Chaitanya , Ebrahim-Zadeh M.
Published: September 2024

We describe a novel configuration of bulk χ (2) OPO providing near-transform-limited sub-100 fs pulses with coherent broadband phase-locked spectrum when driven with a cw laser by deploying an intracavity electro-optic-modulator together with dispersion control.
Robust Biphoton Entanglement of Three Topological Modes
Authors: Zakeri M. Javad , Blanco-Redondo Andrea
Published: September 2024

We numerically show the generation of three-mode biphoton entanglement in silicon photonic topological superlattices. Our results show signatures of robustness to dis-order in the resulting entangled state, highlighting a route toward robust complex photonic entanglement.
Two-Photon Process in Free Electron Radiation
Authors: Lin Hongteng , Liu Fang , Cui Kaiyu , Feng Xue , Zhang Wei , Huang Yidong
Published: September 2024

We propose and investigate analytically the new phenomenon of two-photon emission by free electrons. It’s found two-photon emission can be greatly enhanced by increasing transverse field of light in a specific photonic structure.
Period-halving effect in Floquet photonic lattices
Authors: Kang Qianqian , Wang Zhaoyuan , Huang Xiaoqin , Guo Qing , Zhuang Yuhui , Gong Zeyu , Wang Minglei , Hu Yi , Xu Jingjun
Published: September 2024

We report a light-intensity oscillation with a half-period of Floquet drives applied on photonic lattices. Such an effect, achieved by chiral symmetry of any two half-period separated instantaneous Hamiltonians, is manifested only for zero-energy modes.
An In-Depth Analysis of Entangled Photon-Pair Generation in Nonlinear Thin Films
Authors: Santos Elkin A. , Weissflog Maximilian A. , Setzpfandt Frank , Saravi Sina
Published: September 2024

We present a general theoretical formalism of spontaneous parametric down-conversion in nonlinear thin films. Based on a Green-function approach, we study emission directionality and polarization entanglement of photon pairs generated by a thin GaAs slab.
Brillouin Amplifier Autonomously Generating Pump Light with Optimum Frequency Offset
Authors: Suda Satoshi , Kurosu Takayuki , Amano Takeru
Published: September 2024

We propose a simple scheme to precisely generate pump light for Brillouin amplification in an all-optical manner exploiting Brillouin laser and four-wave mixing. Gain over 28dB is achieved in entire C-band with thorough noise suppression.
Giant Oscillations of Vector Solitons Driven by Nonreciprocal Interactions
Authors: Jung Pawel S. , Zakeri M. Javad , Ramaniuk Aleksandr , Blanco-Redondo Andrea , Hagan David J , Dogariu Aristide , Christodoulides Demetrios N. , Assanto Gaetano , Krolikowski Wieslaw , Trippenbach Marek
Published: September 2024

We discover and discuss the giant oscillations of stable soliton-molecules as induced by the violation of the action-reaction principle in optical systems ruled by competing nonlinear nonlocal interactions.
Dual-Pumped Supercontinuum Generation in Molecular-Gas Filled Hollow-Core Fibers
Authors: Lekosiotis Athanasios , Plosz Balazs , Belli Federico , Abdolvand Amir , Travers John C.
Published: September 2024

We report the efficient generation of broadband and ultra-flat supercontinuum using deuterium-filled anti-resonant hollow-core fibers dual-pumped with pulses centered at 515 nm and 1030 nm wavelength.
Beyond the parametric approximation: pump depletion, entanglement and squeezing in down-conversion
Authors: Chinni Karthik , Quesada Nicolás
Published: September 2024

We study the dynamics of the down conversion process in the pump-depleted region using the cumulant expansion method and perturbation theory. We find the time scales associated with pump-mode depletion, squeezing and entanglement.
Engineerng nonlinear optical process with random exploration of the optimal phase relationships
Authors: Ohae C. , Liu W. , Kamakura S. , Tajima S. , Suzuki M. , Katsuragawa M.
Published: September 2024

We report an experimental demonstration of the conceptual idea of engineering nonlinear optical processes, where optical phases of electromagnetic fields relevant to the nonlinear optical processes are arbitrarily manipulated as a function of interaction length.
Stably locking a photonic molecule by extending Pound-Drever-Hall feedback with higher-order derivatives
Authors: Srinivasan Dhruv , Sridhar Sashank Kaushik , Miller Alexander R. , Dutt Avik
Published: September 2024

We introduce and experimentally demonstrate a technique to mutually lock two 5.6-meter-long cavities using filtered higher-order derivatives of the transmission. The cavities remain coupled and hybridized in a regime where conventional Pound-Drever-Hall feedback is insufficient.
Broadband microcombs in silica microspheres in normal and anomalous dispersion regime
Authors: Bai Jiamin , Gao You , Sun Suwan , Lin Xukun , Wu Kailin , Wang Xiaoying , Yuan Haiyun , Wang Siyu , Guo Hairun
Published: September 2024

By controlling the size of high-Q silica microspheres, we introduced dispersive waves (DWs) and achieved broadband kerr frequency microcombs with bandwidths of 300 nm and 350 nm under normal and anomalous dispersion, respectively.
Clock Synchronization with Weak Coherent Pulses
Authors: Crum Noah , Reaz Kazi , Hassan Md Mehdi , Green Adrien , Siopsis George
Published: September 2024

We propose a simulated protocol for performing clock synchronization between two spatially separated parties utilizing weak coherent pulses (WCPs) and balanced Hong-Ou-Mandel (HOM) interferometers instead of spontaneous parametric down converted photons (SPDC).
Degenerate Optical Parametric Oscillation Stability in a SiN Microring With Anomalous Group Velocity Dispersion
Authors: Gonçalves Eduardo S. , Tomazio Nathalia B. , Fujii Laís , Trinchão Luca O. , Jarschel Paulo F. , Santos Felipe G. S. , Mayer Alegre Thiago P. , Wiederhecker Gustavo S.
Published: September 2024

This study explores experimentally the stability parameter space of degenerate optical parametric oscillation in a silicon nitride microring in the anomalous dispersion regime. The results highlight a narrow region of the parameter space where the system achieves sustained oscillation.
Independent Engineering of QPM Structures and Waveguides in KTP via Ion-Exchange
Authors: Lee Cherrie S.J. , Barrett Laura , Hessmo Björn , Canalias Carlota
Published: September 2024

We demonstrate a new method to fabricate waveguides in KTP. It allows for independently fabrication of the periodically poled grating via coercive field engineering and post-poling waveguide inscription via ion exchange.
Pre-chirp managed thulium fiber amplifier for 1.8 µm ultrashort pulse generation
Authors: Abughazaleh Ibrahim , Srisamran Panuwat , Gerard Matthew , Xu Duanyang , Jung Yongmin , Richardson David , Xu Lin
Published: September 2024

We present a compact ultrafast fiber laser system designed for nonlinear microscopy at 1.8 µm, employing pre-chirp managed thulium fiber amplification. Seeded by a mode-locked laser, our system generates 180 fs pulses with a pulse energy of 40 nJ.
Dynamic Instantaneous Scan Rate in Optical Sampling by Cavity Tuning (OSCAT): Numerical, Analytical and Experimental Results
Authors: Kabelev Kirill , Ribeiro Ana Filipa do Carmo , Gomes Tiago dos Santos , Cataluna Maria Ana
Published: September 2024

We show that the instantaneous scan rate in sine-driven optical sampling by cavity tuning (OSCAT) can vary by orders of magnitude within a single scan, using numerical and analytical models, in agreement with experimental results.
Pulse Measurement of Second-Harmonic Generation from Random Quasi-Phase-Matching in ZnS
Authors: Glick Noah , Li Tianyou , Vasilyev Sergey , Putnam William P.
Published: September 2024

We use 2.4-micron laser pulses to produce second-harmonic generation via random quasi-phase-matching in ZnS. Using a frequency-resolved optical gating system, we reconstruct the complex temporal profile of the second-harmonic pulses.
10 GHz, 583 fs Regeneratively Mode-Locked Erbium-Doped Fiber Laser Combining Nonlinear Polarization Evolution
Authors: Zhou Xiangxiang , Zhou Yue , Wang Weijin , Zhang Tian , Xu Kun
Published: September 2024

We report a regeneratively mode-locked Er fiber laser generating 583 fs optical pulses at 10 GHz with supermode suppression over 80 dB, achieved by combining an appropriate biased nonlinear polarization evolution (NPE).
Femtosecond pulse amplification assisted with spectral phase modulation
Authors: Krakowski M. , Kwaśny A. , Soboń G.
Published: September 2024

This experiment aimed to improve the pulse shape and the pulse duration, with phase modulation of the seed laser pulse with spatial light modulator before amplifier stage and the employment of Artificial Intelligence algorithms.
Measurement of Third Order Coherence by In Situ Simultaneous Second and Third Order Autocorrelation
Authors: LaViolette Aaron K. , Rebec Mihailo R. , Xu Chris
Published: September 2024

We devise and experimentally demonstrate a method for measuring third order temporal coherence at zero delay of light within a fluorescent sample by simultaneous second and third order autocorrelation, without assumptions about the pulse shape.
Temperature Sensitivity of Modulation Depth in a SWCNT/PDMS Saturable Absorber
Authors: Hamilton Rhona L , Horiuchi Moeri , Shirahata Takuma , Set Sze Y , Yamashita Shinji
Published: September 2024

Threshold pump power for modelocking decreased by 18% over 75°C when a temperature dependent SWCNT/PDMS coated tapered fiber was used as the saturable absorber in a fiber laser.
Supercontinuum Generation via Adiabaticity Shortcut Coupling for High Order Modes in Ta2O5 Waveguides
Authors: Li Gung-Hong , Xie Z-D , Shih Min-Hiung , Kuo Hao-Chung , Wu Chi-Hung , Tseng Shuo-Yen , Chiu Yi-Jen , Lee Chao-Kuei
Published: September 2024

In this work, by using adiabatic shortcut directional coupling approach, coupling efficiency over 80% from TE00 to TE10 mode within Ta2O5 nonlinear waveguide was realized. In addition, octave-spanning supercontinuum generation (650nm to 1300nm) has been demonstrated and discussed.
Unified theory of Raman scattering in gas-filled hollow-core fiber across temporal regimes
Authors: Chen Yi-Hao , Wise Frank
Published: September 2024

We present a theory of Raman scattering in gas-filled hollow-core fiber, connecting different temporal regimes. The theory provides new insights into Raman gain and Raman-induced index changes, and strategies on frequency conversion.
One-sided Slotted Photonic Crystal Nanofiber for Cavity QED
Authors: Sahu Subrat , Nayak Kali P. , Jha Rajan
Published: September 2024

A one-sided slotted photonic crystal cavity structure on an optical nanofiber is proposed to realize cavity quantum electrodynamics. The device can unidirectionally couple single photons with an efficiency of ~90% into the nanofiber fundamental mode.
Impact of Bending Angle on Antiresonant Hollow Core Fiber Performance
Authors: Eltaieb Rania A. , Morency Steeve , Messaddeq Younès , LaRochelle Sophie , Rusch Leslie A.
Published: September 2024

The performance under bending of an antiresonant nodeless fiber (ANF) can vary greatly with bending angle, even for symmetric ANF designs. We examine several designs to identify those that are robust to bending angle.
Excitation of LP0,m Modes in Large-Core Step-Index Fibers using Binary Phase Plates
Authors: Hvidberg Rasmus , Malureanu Radu , Arduin Andrea , Lægsgaard Jesper , Lavrinenko Andrei , Rishøj Lars S.
Published: September 2024

Glass-etched binary phase plates are demonstrated as a novel method for broad-band excitation of LP0
,m
modes (m=3-7) in a 50µm core step-index fiber, with modal puri-ties > 10 dB and coupling efficiencies > 65%.
Fiber Specklegram Sensor based on Reflective LP31 Mode Rotation in Few-Mode Fiber
Authors: Zhao Yunhe , Chen Shiqi , Mou Chengbo , Liu Yunqi , Zhang Lin
Published: September 2024

We propose an LP31 mode-based fiber specklegram sensor based on twist-induced effect in few-mode tilted fiber Bragg grating with high accuracy using speeded-up robust feature algorithm, which would be helpful in the specklegram sensing fields.
Frequency multiplication and spectral purification of microwave signals by an in-resonance pumped fiber Brillouin cavity
Authors: Chen Shanzhuo , Chen Yuyan , Li Yihan
Published: September 2024

A microwave photonics system incorporating a resonantly pumped fiber Brillouin cavity is proposed to multiply the frequency and to suppress the phase noise of an input microwave carrier.
3x3 nonlinear optical lossy loop mirror for self-starting mode-locking in all-PM-fiber lasers
Authors: Pielach Mateusz , Jamrozik Agnieszka , Krupa Katarzyna , Stepanenko Yuriy
Published: September 2024

3x3 fiber couplers introduce a 2π/3 phase shift, which helps initiate the mode-locking operation. Here, we provide more in-depth insight into the performance of the 3x3 nonlinear loop mirror with an asymmetrically placed lossy splice.
Miniaturized Laser Distribution Module for Compact Sr-Based Optical Atomic Clocks
Authors: Hamperl Jonas , Goossen-Schmidt Nora , Arar Bassem , Bursy Marcel , Hariharan Sriram , Müller Norbert , Schiemangk Max , Szermer Sandy , Tyborski Christoph , Zou Dian , Wicht Andreas
Published: September 2024

We present the layout of a miniaturized laser distribution module as part of a 88Sr optical lattice clock. It consists of distributed Bragg reflector lasers (679 and 707 nm) combined with specifically developed, miniaturized electro-optical components.
Terahertz Doppler-Free Spectroscopy with UTC-PD Emitter
Authors: Tanaka Koichiro , Eguchi Kohei
Published: September 2024

Doppler-free spectroscopy with a counter-illuminated pump-and-probe configuration was performed using a uni-traveling-carrier photodiode. From the pump light intensity and pressure dependence of the Lamb-dip, the homogeneous width under zero pressure is estimated to be 32 kHz. This value is consistent with the transit time width ( 36 kHz) estimated from the experimental configuration.
Warm vapor four-wave mixing for generating optical quantum states
Authors: Lett Paul D.
Published: September 2024

Warm atomic vapors make good, high-density, and highly nonlinear media for generating entangled quantum states. One- and two-mode squeezed states generated in this way are useful for quantum information processing and sensor applications.
Quantum networking with microfabricated atomic vapor cells
Authors: Mottola Roberto , Buser Gianni , Gaikwad Suyash , Treutlein Philipp
Published: September 2024

Quantum memories for photons are building blocks of quantum networks. Memories implemented in hot alkali vapor are attractive as they operate without cryogenics or ultra-high vacuum. We demonstrated single-photon storage and retrieval in such memories and for the first time implemented them in microfabricated cells compatible with wafer-scale mass production - a crucial step towards scalability.
Improvements of the Pulsed Optically Pumped Rb clock
Authors: Gozzelino M. , Levi F. , Micalizio S. , Calosso C. E.
Published: September 2024

The Pulsed Optically Pumped Rb clock (POP) is an emerging clock technology that allowed to obtain record short and long term stability within hot vapor cell clocks. In this work we present most recent results showing a clock stability entering in the E-16 range, and we propose a new laser stabilization scheme that allows a drastic simplification of the optical set-up.
Molecular Iodine Optical Atomic Clocks
Authors: Roslund J. , Cingoz A. , Kowligy A. , Ledbetter M. , Moore S. , Partridge G. , Patel P. , Roller F. , Sheredy D. , Atchison E. , Carney P. , Husain O. , Pasha M.K. , Pashollari E. , Rakholia A. , Skulason G. , Song J. , Dowd A. , Abo-Shaeer J. , Boyd M.
Published: September 2024

Vector Atomic has developed optical clocks using iodine vapor cells. These clocks provide excellent short-term instability, require neither laser cooling nor cavity pre-stabilization, are insensitive to motion, and maintain holdovers of <1ns for several days.
An Ultra-broadband Approach For Breath Analysis
Authors: Cristescu Simona M. , Krebbers Roderik , van Kempen Kees , Khodabakhsh Amir
Published: September 2024

We present a breath analysis system using an intrapulse difference frequency generation-based (IDFG-based) supercontinuum source in the 2 – 11.5 µm wavelength range for simultaneous detection of metabolites in exhaled breath using Fourier transform spectroscopy.
High-Resolution Dual-Comb Spectroscopy from 1 THz to 1 PHz
Authors: Vodopyanov Konstantin L.
Published: September 2024

Starting from two phase-locked frequency combs based on Kerr-lens mode-locked Cr:ZnS lasers (2.35µm), we use various up- and down-conversion strategies to perform dual-comb spectroscopy across 1THz–1PHz range with up to some 1,000,000 comb-teeth resolved.
Non-equilibrium Inter-site Dynamics of Photoexcited Kitaev α-Li2IrO3
Authors: Chen Hui-Yuan , Dogadov Oleg , Versteeg Rolf , Cerullo Giulio , Carbone Fabrizio , Chergui Majed
Published: September 2024

The inter-site transition dynamics in a 2D honeycomb lattice of the Mott-insulator Li2irO3 was investigated via broadband time-resolved spectroscopy. Through two excitation regime corresponding to charger transfer (3.1eV) and across Mott-gap excitation (0.8eV), distinct inter-site transition dynamics were revealed and attributed to the distinct photoexcited quasiparticles, i.e., doublon and holon, in the 2D honeycomb lattice.