bluuebunny/crossref_metadata_2025 huggingface dataset:
Atomic memory on the external degrees of freedom of an ensemble of two-level atoms
Authors: Capella Juan C. C. , de Melo Álvaro M. G. , Lopez Jesus P. , Tabosa José W. R. , Felinto Daniel
Published: July 2023

A theoretical and experimental analysis is developed for an atomic memory based on recoil-induced resonance. Control of such memories on external degrees of freedom is crucial to explore higher order nonlinearities for storage of information.
Three-photon excitation of quantum two-level systems
Authors: Villafane V. , Scaparra B. , Rieger M. , Appel S. , Trivedi R. , Oliver R. A. , Taylor R. A. , Finley J. J. , Müller K.
Published: July 2023

We demonstrate that a two-level system, in form of an InGaN quantum dot, can only be efficiency excited using an odd number of photons (1 or 3) while resonant two-photon excitation is strongly suppressed.
Characteristics of Forward Stimulated Brillouin Scattering in Microfibers with Elliptical Transverse Profile
Authors: Wang Han , Li Yichun , Wei Zizhou , Shou Haozhe , Zhu Mengshi , Pang Fufei , Zhang Liang
Published: July 2023

We theoretically investigate the forward stimulated Brillouin scattering (FSBS) of microfibers with elliptical transverse profile, revealing distinctive FSBS frequency dependence on the fiber geometry.
Influence and mitigation of crosstalk and noise on quantum communication
Authors: Devine Ekaterina Ponizovskaya
Published: July 2023

We discuss the influence of crosstalk on quantum communication networks and its mitigation. It was shown that choosing the parameters for the network that uses the phase stochastic resonance phenomena can increase the signal-to-noise ratio.
Mode-Mismatch-Robust Squeezed Light from a Self-Imaging Optical Parametric Oscillator
Authors: Roh Chan , Gwak Geunhee , Ra Young-Sik
Published: July 2023

We show that the multimode squeezed light from a self-imaging optical parametric oscillator has the robustness of maintaining the squeezing level to spatial mode mismatch. This light outperforms single-mode infinitely squeezed light against massive mode-mismatch.
A Programmable Single-Qubit Quantum Gate
Authors: Aguayo-Alvarado A. L. , Domínguez-Serna F. A. , De La Cruz W. , Garay-Palmett K.
Published: July 2023

We present a design for an integrated single-qubit quantum gate based on the third order nonlinear process of difference frequency generation. A theoretical model is presented for the transformation of the qubit with device-external parameters.
Fluorescence Excitation of Quantum Dots by Entangled Two-Photon Absorption
Authors: Gäbler Tobias B. , Hendra Patrick , Jain Nitish , Prenzel Erik , Gräfe Markus
Published: July 2023

A photon pair source based on nonlinear waveguides was used to investigate fluorescence excitation of quantum dots. We present a comprehensive study of entangled absorption behavior by varying experimental quantities and following latest theoretical insights.
Tripartite Frequency-bin-encoded W States on a Chip
Authors: Banic Milica , Sipe J. E. , Liscidini Marco
Published: July 2023

We introduce an integrated source of genuine tripartite frequency-bin-encoded W states with a predicted generation rate of ∼10 kHz for milliwatt pump powers. We discuss the advantages of this approach compared to others.
Two-photon absorption of squeezed light by rubidium atoms: Will Doppler do us in?
Authors: Drago C. , McLean A. , Jimenez R. , Sipe J. E.
Published: July 2023

We calculate the two-photon absorption of squeezed light by rubidium atoms. In the region of large enhancement, Doppler broadening significantly decreases the effectiveness of photon correlations, leading to the prediction of unspectacular fluorescence counts.
Tuning Strategy for a Monolithically Integrated Unidirectional Vernier Dual-Ring InP Laser
Authors: Lo Mu-Chieh , Bennett Alex , Zhou Zichuan , Ruocco Alfonso , Liu Zhixin , Andreuou Stefanos , Augustin Luc
Published: July 2023

Wavelength mapping and calibration for a widely tunable laser utilizing Vernier micro-ring resonators are investigated. The laser achieves quasi-continuous tuning through reverse biasing the electro-optic phase sections.
Nonlinear Self-injection Locking for All-Passive Laser Stabilization Beyond the Schawlow-Townes Limit
Authors: Bishop Andrew M. , Gaeta Alexander L.
Published: July 2023

We propose a method for laser stabilization and phase-noise reduction using nonlinear feedback in which a gain-narrowed signal mode of a nonlinear oscillator is re-injected back into the pump laser. We show a proof-of-concept using Brillouin scattering.
Optimizing the design of two-section integrated lasers for a larger excitability regime
Authors: Puts L. , Lenstra D. , Williams K. , Yao W.
Published: July 2023

Using the Yamada model, the influence of saturable absorber length and mirror reflectivities on the excitability window of an integrated laser is investigated. A short absorber and low reflectivity mirrors are beneficial for a large excitability window.
Buried Heterostructure Laser Using IFVD Quantum Well Intermixing technique
Authors: Hsiao Chung-Wei , Yen Po-Ming , Feng Wei-Cheng , Chen Yang-Jeng , Chen Rih-You , Chen Cong-Long , Chiu Yi-Jen
Published: July 2023

A new buried heterostructure (BH) waveguide laser made by using IFVD quantum well intermixing (QWI) is demonstrated. 110nm blueshift QWI was attained for defining waveguide, leading to CW Fabry-Perot laser with >2mW at 1490nm.
NIR Ring Mirror Laser Utilizing Low Loss Silicon Nitride Photonic Platform
Authors: Madaras Scott E. , Starbuck Andrew L. , Trotter Douglas C. , Dallo Christina M. , Martinez William M. , Chow Weng W. , Skogen Erik J. , Gehl Michael R.
Published: July 2023

Low loss silicon nitride ring resonator reflectors provide feedback to a III/V gain chip, achieving single-mode lasing at 772nm. The Si3N4 is fabricated in a CMOS foundry compatible process that achieves loss values of 0.036dB/cm.
Robust Interference Filter for FM-to-AM Conversion Compensation in a Regenerative Amplifier
Authors: Devaine Hadrien , Belon Nicolas , Lavastre Eric , Montant Sébastien , Braud Alain , Boursier Elodie
Published: July 2023

We numerically and experimentally studied compensation of FM-to-AM conversion due to spectral gain response of a regenerative amplifier with an extra-cavity interference filter. We discuss the sensibility of this technology regarding different parameters.
Raman Conversion in Calcite Crystals for Seeding CO2 Lasers
Authors: Li William H. , Kupfer Rotem , Babzien Marcus , Cultrera Luca , Polyanskiy Mikhail N. , Pogorelsky Igor V. , Rao Triveni , Vafaei-Najafabadi Navid , Wang Furong , Wishart James F. , Palmer Mark A.
Published: July 2023

We report the use of Raman conversion in calcite crystals to generate wave-lengths suitable for seeding sub-picosecond LWIR CO2 lasers after subsequent difference frequency generation.
Manipulating the Refractive Index of a Fabry-Perot Nanocavity Comprising Thin Semiconductor and Metal Films Using an External Electric Potential
Authors: Dixit Kirtan P. , Weckerly Samantha G. , Gregory Don A.
Published: July 2023

Reflectance of multilayer thin-film can be calculated using the refractive index and layer thickness by transfer matrix method. We show the effects of electric potential on the refractive index of multilayer thin-film made of Au-pInSb-TiO2-Au.
Low-Cost Single Frequency DPSS Nd:YVO4 Laser for Length Metrology
Authors: Elsafty Ahmed S. , Terra Osama , Sobee Mohamed , El Sherbini Ashraf M. , El Sherbini Tharwat M.
Published: July 2023

Solid-state lasers are used in length metrology because it has narrow linewidth, single mode and wavelength stability. A simple method uses Nd:YVO4 laser to obtain single mode with stability 1.9 × 10-8 at 1 second.
Absolute Frequency Referencing in the Deep-UV Region for Metrological Application
Authors: Gravina Stefania , Sorgi Alessia , Clivati Cecilia , Chishti Naveed A. , Castrillo Antonio , Galzerano Gianluca , Levi Filippo , Pastor Pablo Cancio , Gianfrani Livio
Published: July 2023

A comb-assisted frequency chain linking the UV domain to the near-infrared region has been developed with the aim of performing precision linear spectroscopy of mercury atoms at 253.7 nm for temperature metrology.
Line-shape study of CO perturbed by N2 with mid-infrared frequency comb spectroscopy
Authors: Nishiyama Akiko , Kowzan Grzegorz , Charczun Dominik , Masłowski Piotr
Published: July 2023

We applied a mid-infrared frequency comb-based Fourier-transform spectroscopy to line-shape study of fundamental vibrational band of CO perturbed by N2. Our frequency comb-based spectrometer enables to provide precise spectroscopic parameters in mid-infrared region.
Assessing the Performance Limitations of Doppler Stabilized Optical Fiber Links
Authors: Zhou Laura T. , Nardelli Nicholas V. , Fortier Tara M.
Published: July 2023

We employ a polarization-maintaining (PM) optical fiber link as a means to overcome the performance limits in traditional non-PM fiber links and achieve a 1-s fractional frequency instability near 10-18 for a short 10 m link.
Artificial vision systems inspired by the eyes of aquatic animals
Authors: Song Young Min
Published: July 2023

We present our recent advances in the building of artificial vision systems inspired by the eyes of aquatic animals, including fishes, cephalopods, and crabs. The complete set of bioinspired eyes shows exceptional imaging capabilities.
Near-Zero-Index Conducting Oxides for Nonlinear Photonics
Authors: Jaffray W. , Boltasseva A. , Shalaev V. M. , Ferrera M.
Published: July 2023

When used within the wavelength range of vanishing permittivity, transparent conducting oxides exhibit unprecedented optical nonlinearities. These untapped optical properties are potentially disruptive for a broad plethora of applications in both integrated and quantum photonics.
Cross-talk analysis in chalcogenide triangular lattice fibers with three sublattices for high-resolution mid-infrared image transport
Authors: Nakatani Asuka , de Clermont-Gallerande Jonathan , Suzuki Takenobu , Ohishi Yasutake
Published: July 2023

We propose triangular lattice fibers (TLFs) with three s ublattices made of chalcogenide glasses and reveal the core diameters and the core separation of the TLFs by numerical simulation of cross-talk for high-resolution mid-infrared image transport.
Observation of bound-state pulse mode-locked by all-PM NPR in the all anomalous dispersion regime
Authors: Ye Guanyu , Sun Xiangnan , Liu Bowen , Shirahata Takuma , Yamashita Shinji , Set Sze Yun
Published: July 2023

For the first time in the soliton regime, we demonstrated a bound-state pulse generated in an Erbium-doped mode-locked fiber ring laser based on all polarization-maintaining nonlinear polarization rotation.
Wavelength-tunable GHz harmonic mode-locked fiber laser by an over-coupled long period fiber grating based saturable absorber
Authors: Dai Lilong , Zhu Yu , Ma Yuehui , Jiang Chen , Huang Qianqian , Huang Zinan , Liu Yunqi , Mou Chengbo
Published: July 2023

We demonstrated a harmonic mode-locked fiber laser by using saturable absorber based on interaction of over-coupled long period fiber grating and carbon nanotubes. Maximum repetition rate of 5.38 GHz was obtained with 24.15 mW output. Wavelength tuning range of 8 nm is also realized by modifying the saturable absorber operation temperature.
Inverse Design of Fabrication-Robust, Low-Loss, and Compact Waveguide Bends
Authors: Zhu Ziwei , Rodrigues Janderson R. , Lipson Michal , Zheng Changxi
Published: July 2023

We report an inverse design method for waveguide bends. We design a TE0- TE4 waveguide bend with an effective radius 14.96 µm and loss less than 0.4 dB over a 250 nm bandwidth.
Achieving directional scattering through a phase difference in composite nanoparticles
Authors: Kotte T. P. S. , Adam A.J.L. , Urbach H.P.
Published: July 2023

We show that the scattering of light by a composite nanoparticle leads to directional scattering through the phase difference between the light scattered by each of the materials. The resulting scatter pattern is experimentally verified.
Metasurface-Assisted Polarization Dichroic Cavities
Authors: Semnani Behrooz , Soltani Mohammad , Maruf Rubayet Al , Bajcsy Michal
Published: July 2023

We present our experimental demonstration of a polarization dichroic confocal cavity using a pair of vertically-mounted bi-layer dielectric metasurfaces consisting of a polarization-selective photonic-crystal mirror and a dielectric dichroic metalens.
Distinguishing thermal from non-thermal (“hot”) carriers in illuminated molecular junctions
Authors: Dubi Yonatan , Un Ieng Wai , Sivan Yonatan
Published: July 2023

We develop the theory necessary to explain the experimental measurement of the non-thermal electron distribution in a plasmonic molecular junction in [2]. This reveals that the original interpretation of the measurements was inaccurate.
On-Chip Terahertz Spectrometer based on Magnetoelectric Coupling in Metasurface
Authors: Zhao Shiqiang , Wen Yongzheng , Wang Chen , Wang Feilou , Li Yan , Luo Weijia , Sun Jingbo , Zhou Ji
Published: July 2023

We theoretically propose a metasurface-based room-temperature on-chip terahertz spectrometer. Based on magnetoelectric coupling in metasurface, direct photoelectric conversion with selective frequency response can be achieved, leading to the capability of terahertz spectral analysis.
Flexible Metasurface-Based Wraps for Improving Magnetic Field Enhancement in 1. 5T MRI
Authors: Gupta Jegyasu , Das Priyanka , Bhattacharjee Ratnajit , Sikdar Debabrata
Published: July 2023

We design a flexible metasurface comprising interconnected copper spirals on polyimide substrate for boosting radio-frequency magnetic field in the region-of-interest for 1.5T MRI. The ultra-thin, body-conformal structure is implementable as “add-ons” inside body-specific transceiver coils.
Pulse to Pulse Emission Characteristics of Fast and Ultrafast Lasers Emitting from UV to MIR Measured With a New Generation of High Speed Laser Energy Sensors
Authors: Germagnoli Alberto , Bonasoro Giacomo , Crapella Giacomo , Pellegrino Sergio
Published: July 2023

Pulse to Pulse Characteristics of UV to MIR Emitting Lasers Using a New High Speed Laser Energy Sensors Are Shown. A Methodology to Detect Missing Pulses Was Implemented for Ultimate Control of Laser Micromachining Processes.
Dual-Comb Ranging Using Soliton Microcombs with Tunable Repetition Rate
Authors: Yang Yuechen , Zhou Kailu , Hu Chenhua , Shen Yang , He Guangqiang
Published: July 2023

We propose a method of tuning the repetition rate of soliton microcombs by temperature. The tunable range reaches 12 MHz. The trade-off between acquisition rate and precision of ranging systems is overcome without additional barrier.
Spectral Restoration of Optical Comb by Low-Resolution Scanning Etalon Combined with Inverse Matrix Deconvolution Processing
Authors: Hidaka Takumi , Ishijima Tatsuki , Harada Shun , Sakamoto Takahide
Published: July 2023

We demonstrate spectral measurement of frequency components generated from an electro-optic-modulator-based comb generator. Even with a cost-effective, low-resolution scanning etalon, the spectra of comb lines can be recovered and analyzed through an inverse-matrix deconvolution process.
Wafer Level Fabrication of Evacuated Alkali Vapor Cells
Authors: Li Yang , Sohn Donggyu B. , Hummon Matthew , Kitching John
Published: July 2023

We describe a wafer level fabrication process for evacuated Rb vapor cells. By etching channels on the wafer surface around the cell positions, we demonstrate wafers of cells with residual gas pressures below 5 mbar.
Surface Potentials Measured by Light-Induced Atomic Desorption (LIAD) in Alkali Vapor Cells
Authors: Pajak Will , Nunley Timothy , Kunz Paul
Published: July 2023

We assess the utility of non-resonant light for rapidly controlling vapor density in glass cells and discuss the diffusion processes involved, revealing the pertinent potentials experienced by atoms moving between the adsorbed and vapor phases.
Vortex Formation of Active Particles within a Confined Geometry by Velocity Alignment
Authors: Chen Zhihan , Ding Hongru , Zheng Yuebing
Published: July 2023

we have developed an optical feedback control system with synchronous control of active particles to study collective motion in nature. Fish-like vortex is observed within a circular confined geometry based on the particles' velocity alignment.
Noise Reduction of Brillouin Sensor Signal by using Brillouin Gain and Loss Spectra
Authors: Sei Daichi , Nonogaki Hayato , Hoshino Kazuki , Tanaka Yosuke
Published: July 2023

We evaluated the noise in slope-assisted (SA) Brillouin optical time domain analysis based on Brillouin gain and loss spectra and found out an effect that the noise is reduced compared with conventional SA methods.
A Novel Guard Interval Approach for NFDM Transmission
Authors: Wang Yutian , Kamalian Morteza , Chen Zexin , Tu Yucheng , Hu Zihe , Fu Songnian , Zhao Luming , Tang Ming , Tang Xiahui , Turitsyn Sergei K.
Published: July 2023

A novel reduced-complexity scheme of guard interval based on cyclic extension for NFDM system with continuous spectrum is introduced, increasing the transmission reach by 300 km for 16QAM signal and 100 km for 32QAM.
Machine-Learning Enabled Optimization for Robust Soliton Crystal Generation in Microring Resonators
Authors: Mazoukh C. , Di Lauro L. , Fischer B. , Aadhi A. , Alamgir I. , Eshaghi A. , Little B. E. , Chu S. T. , Moss D. J. , Morandotti R.
Published: July 2023

We illustrate a novel strategy to robustly generate soliton states in Hydex microring resonators pumped with a continuous-wave laser source, by employing genetic algorithms to optimize the parameters required for coherent state generation.
A Bistable Binary Metaoptic for Passive Optical Switching
Authors: Jarzembski Amun , Doiron Chloe , Siddiqui Aleem , Harrison Richard K. , Piontkowski Zachary , Beechem Thomas E.
Published: July 2023

Fully-coupled nonlinear simulations enable passively-actuated telecom metaoptic design. It experiences optical bistability at a pulse intensity of 5 GW/cm2, and when configured as a binary-phase deflecting metaoptic, alters its diffraction efficiency by 68%.
Ultrafast Structured Light Architectures from THz to X-rays
Authors: Carbajo Sergio , Chang Tiffany , Fota Rares , Gilevich Alexandra , Hart Ariel , Hirschman Jack , Huerta Alain Lacunza , Lemons Randy , Li Zairu , Lu Brittany , Sims Wesley , Sun Linshan , Varma Ravi , Wang Alan , Yang Hongyi , Zhang Hao
Published: July 2023

We will review recent advances in ultrashort light wavepackets – from THz to X-rays – exhibiting spatio-temporal structure to enable emerging frontiers in ultrafast multi-modal quantum electrodynamics and coupled time-resolved techniques with attosecond time accuracy.
A compact 90-degree bending waveguide constructed using an intelligent inverse design algorithm
Authors: Li Mingzhe , Wang Tong , Zhang Yi , Ren Qun , Xin Ming
Published: July 2023

A 90-degree bending silicon-on-insulator waveguide is constructed using a self-developed inverse design optimization algorithm. The measured insertion loss is about 1.7 dB at 1550 nm with a footprint of only 1.5µm×1.5µm.
Circular Dichroism Induced by Spin Momentum Locking Detected in Optical Rectification
Authors: Toemtrisna Nop , Moroshkin Peter , Xu Jimmy
Published: July 2023

With an inversion-symmetric structure, circular dichroism is detected in optical rectification. The effect is attributed to symmetry breaking and extrinsic chirality arising from the spin-momentum locking between surface plasmon polariton and the circularly polarized light.
Design of L-Valley Ge/GeSiSn Waveguide Quantum Cascade Detector
Authors: Sun Greg , Soref Richard , Khurgin Jacob , Yu Shui-Qing , Chang Guo-En
Published: July 2023

We propose a lattice-matched Ge/GeSiSn quantum cascade detector (QCD) capable of operating in the longwave infrared. The optical absorption and carrier transport based on intersubband transitions all occur within the L-valley of the conduction band.
Dispersion Control of High-quality Ge23Sb7S70 Reflowed Wedge Resonators
Authors: Xu Bo , Grayson Michael , Shanavas Thariq , Gopinath Juliet T. , Park Wounjhang
Published: July 2023

We report Ge23Sb7S70 chalcogenide reflowed wedge resonators with up to 106 quality factors fabricated through reflow. The continuously varying sidewall angle can be engineered to support flat, close-to-zero dispersion modes despite large material dispersion.
Brillouin scattering by surface acoustic waves in Z-cut lithium niobate ridge waveguides
Authors: Rodrigues Caique C. , Zurita Roberto O. , Alegre Thiago P. M. , Wiederhecker Gustavo S.
Published: July 2023

We demonstrate through numerical simulations that Z-cut Lithium Niobate on Insulator (LNOI) ridge waveguides may support confined short-wavelength surface acoustic waves that strongly interact with optical fields through backward Brillouin scattering.
Design and Characterization of High-Q Micro-Ring Resonator using X-Cut LNOI
Authors: Chityala Ravi Kiran , Aryal Arjun , Madras Scott , Gehl Michael , Siddiqui Aleem , Busani Tito
Published: July 2023

We present the optimum fabrication/design of 200nm thick X-cut Lithium Niobate on an Insulator (LNOI) micro-ring resonator where we report Q-factors in excess of 75,000, the highest reported to date in this material system.
Manipulation of Entangled Photon Pairs in Sandwich Valley Photonic Crystals
Authors: Jiang Zhen , Xi Chaoxiang , Jiang Chun , He Guangqiang
Published: July 2023

We propose a sandwich valley photonic crystal implementing the generation and topological transport of continuous frequency entangled biphotons. These extended valley kink states propagating in the sandwich domain show more tolerance for disorders.
Investigations on Amplification of Feedback in Single-Mode Ridge Waveguide Optical Amplifiers at 767nm
Authors: Baumann Jan Markus , Kamal Tasfia , Arar Bassem , Kürbis Christian , Bawamia Ahmad , Wicht Andreas
Published: July 2023

We present an experimental setup to investigate the sensitivity of ridge waveguide semiconductor optical amplifiers to optical feedback. We determine the amplification in forward and backward directions at 767nm at varying seed and feedback powers.
Programmable and Tunable Multi-band Microwave Photonic Filters based on Optical Frequency Comb Shaping
Authors: Jung Youngjin , Choi Hyunjong , Song Minje , Choi Gyudong , Ahn Joon Tae , Lim Seungyoung , Lee Taehyun , Song Minhyup
Published: July 2023

We present programmable and tunable multi-band microwave photonic filters based on carrier-suppressed single-sideband modulation of an optical frequency comb, and line-by-line optical spectral shaping in an interferometric configuration.
Er-doping of thin-film lithium niobate on insulator using ion exchange process
Authors: Younesi Mohammadreza , Yang Daniel , Liu Hao-Yun , Saravi Sina , Setzpfandt Frank , Chen Yen-Hung , Pertsch Thomas
Published: July 2023

We doped a thin-film lithium niobate on insulator substrate by Er ions, using an ion exchange process. We investigated and characterized the generated fluorescence light from the substrate.
Multilayer structures enhance passive upconversion
Authors: Hamid Rabeeya , Feng Demeng , Belliveau Emma , Hu Manchen , Narayanan Pournima , Wan Chenghao , Congreve Daniel N. , Kats Mikhail A.
Published: July 2023

We demonstrate the use of dielectric thin-film stacks to increase the external quantum efficiency of passive upconverting films based on Y6/rubrene for imaging in trans-mission mode.
Femtosecond Laser Inscription of Eccentric Waveguide in Optical Fiber for Rayleigh Scattering Enhancement
Authors: Luo Pengtao , Chen Fengyi , Wang Ruohui , Qiao Xueguang
Published: July 2023

We report an eccentric waveguide incribed by Femotosecond laser to enhance Rayleigh scattering level for distributed fiber sensing. The signal can be increased by about 30dB with low transmission loss.
Vertical Silicon-on-Insulator Coupler for High Density Optical Interconnects
Authors: Pita Julian L. , Gabrielli Lucas H. , Yang Jun , Li Ming-Jun , Dainese Paulo , Ménard Michaël
Published: July 2023

We present an ultra-compact dual-polarization coupler working at normal incidence to the chip surface for use with multi-core fibers with a core-to-core spacing down to 15 µm. The coupler achieves an unprecedented efficiency of −3.8 dB for a device with a footprint of only 100 µm2 and a 3-dB bandwidth of 59 nm.
Probing Tunnel Ionization in Curved Waveguide
Authors: Ben levy Arnon , Hen Amir , Kahn Merav , Aharon Yoad , Levin Tamar , Mazurski Noa , Levy Uriel , Marcus Gilad
Published: July 2023

Probing the wavefunction of an electron under the ‘forbidden zone’ during tunnel ionization is of paramount importance to answer open questions related to it. We used a curved waveguide to simulate tunnel ionization.
All-optical Nonlinear Activator for Optical Neural Network with Low Threshold Power and Ultrafast Response Speed
Authors: Zhou Ziwen , Zhang Ze , Wang Weiqin , Peng Wenyi , Xiong Jiawang , Yan Siqi , Tang Ming
Published: July 2023

We proposed a novel all-optical nonlinear activator based on the hybrid integration of graphene and silicon/metallic double slot structure, which exhibits low threshold power and ultrafast response speed.
Thermal engineering of local group velocity dispersion in triple-state photonic molecules
Authors: Trinchão Luca O. , Gonçalves Eduardo S. , Fujii Laís , Tomazio Nathalia B. , Jarschel Paulo F. , Mayer Alegre Thiago P. , Wiederhecker Gustavo S.
Published: July 2023

We present the dispersion engineering of a three-microring photonic molecule via thermo-optic effects. Despite the overall normal GVD, local regimes of normal and anomalous dispersion are tailored by fine-tuning the microcavities’ supermode frequencies.
High Harmonic Generation from Thin Film ZnO in Transmission Geometry
Authors: Journigan Troie , Liu Yangyang , Cabello Christian , Berriel S Novia , Banerjee Parag , Chini Michael
Published: July 2023

We study high-order harmonic generation from epitaxial ZnO films grown on Al2O3 substrate. We observe a saturation of the harmonic intensity for a film thickness of 30 nm.
Adaptive Phase-Change Metasurfaces for Passive Radiative Cooling
Authors: Didari-Bader Azadeh , Estakhri Nooshin M. , Estakhri Nasim Mohammadi
Published: July 2023

We report a class of adaptive and tunable metasurfaces incorporating transparent conducting oxides (Aluminum-doped Zinc Oxide, AZO) and patterned phase-change materials (Vanadium Dioxide, VO2) for radiative cooling applications within the atmospheric transparency window (8-13 µm).
Red Emissive Carbon Dots with a Large Stokes Shift for Color-Conversion LEDs
Authors: Zhang Xueqiao , Liu Ye , Yeasmin Sanjida , Ullah Ahasan , Cheng Li-Jing
Published: July 2023

We present new red emissive carbon dots with 219 nm Stokes shift and 45.2% quantum yield. The photoluminescence mechanism for the large Stokes shift was proposed. Printable luminescence patterns and color-conversion LEDs were demonstrated.
Complexities in calibration of THz streaking based photoelectron arrival time tool at X-ray free electron lasers
Authors: Błachucki W. , Johnson P.J.M. , Usov I. , Arrell C.
Published: July 2023

Use of THz photoelectron streaking as an arrival time-tool is presented. Complexities in calibration of the THz field as well as high fidelity, single shot photoelectron spectra giving rise to sources of errors is discussed.
Soliton Crystals in a High-Q MgF2 Microresonator
Authors: Wang Heng , Duan Bing , Li Chang , Zhang Yong , Yang Daquan , Wang Chuan
Published: July 2023

Based on the power-kicking method, the soliton crystals and multiple solitons in high-Q magnesium fluoride microresonator are observed. Under constant pump, they could be obtained with different defects deterministically that occurred by the wavelength tuning.
Design Optimization of a Shallow Ridge InP Traveling-Wave MZI Modulator for 200 Gb/s Data Transmission
Authors: Yao Ruoyun , Pan Weiwei , Peng Zhangwan , Ying Xiaojun , Liu Yili , Xiong Yiti , Ji Chen
Published: July 2023

We propose a shallow ridge InP-based traveling-wave Mach-Zehnder modulator with optimized electrode and gradient-doped cladding layer for high-speed performance, capable of 200 Gb/s data transmission with simplified fabrication process and improved reliability.
Nanophotonic Resonator Design for On-chip Quantum Memories
Authors: Becker Fabian , Kim San Kyu , Müller Kai
Published: July 2023

We present nanophotonic designs for on-chip Er:Y2SiO5quantum memories with high coupling efficiency between waveguide mode and erbium ensembles, allowing AFC efficiencies up to 75 % under current material, setup and fabrication limitations.
On-Chip Photonic Frequency Divider for Dual-Wavelength Optical Signal
Authors: Tang Liangzun , Liu Shifeng , Tang Zhenzhou , Li Simin , Pan Shilong
Published: July 2023

An integrated photonic frequency divider for dual-wavelength optical signal is proposed and demonstrated based on an optoelectronic oscillating loop. A 1/2-scaled photonic frequency divider with a frequency interval ranging from 22-30 GHz is realized.
Investigation of shock-waves generated by ps UV filaments
Authors: Rastegari Ali , Diels Jean-Claude
Published: July 2023

Shock-waves generated by UV filaments are investigated. The shock-wave first nonlinearly propagates with a super-sonic velocity, thereafter linearly at a group velocity close to the speed of sound, which is determined by the filament preparation.
Passive mode-locking without a saturable absorber using a coupled microresonator
Authors: Imamura Riku , Fujii Shun , Nakashima Ayata , Tanabe Takasumi
Published: July 2023

Mode-locking usually requires saturable absorption or active modulation to trigger and build short pulses. We show through calculations that self-starting mode-locking may be achieved simply by coupling active and passive microresonators without a saturable absorber.
Continuous-variable quantum key distribution with true local oscillator
Authors: Williams Brian P. , Qi Bing , Alshowkan Muneer , Evans Philip G. , Peters Nicholas A.
Published: July 2023

In continuous variable quantum key distribution (CV-QKD), using a truly local (not transmitted over the network) oscillator improves security. Here we report the first implementation of this CV-QKD scheme over a deployed optical fiber network.
Experimental symmetric private information retrieval with measurement-device-independent quantum network
Authors: Wang Chao , Kon Wen Yu , Ng Hong Jie , Lim Charles C.-W.
Published: July 2023

We report the first realisation of a provably-secure symmetric private information retrieval (SPIR) scheme supported by a quantum-secure key-exchange network, offering secure retrieval of fingerprint data from a database with 800 entries.
Optical DPS-QKD Protocol Synthesis with Chirp-Pulsed and Phase Stabilized Laser Carrier under Injection-Locking
Authors: Huang Chien-Ming , Cheng Chih-Hsien , Lin Gong-Ru
Published: July 2023

A below-threshold biased laser diode under modulated injection-locking with binary and triangular sequenced DPSK-QKD protocols with allowable phase-stabilized decoding up to 100Gbits in 12-min is successfully synthesized by using its leading-edge chirped pulse carrier.
High-harmonic generation in graphene heterostructures
Authors: Rozema Lee A. , Jenke Philipp K. , Bajo Josip , Walther Philip
Published: July 2023

Graphene has a large optical nonlinearity and supports electrically-tunable and long-lived plasmons. We present an experimental study of harmonic generation in graphene heterostructures, which enhance the nonlinearity and allow plasmons to mediate the non-linear response.
Plasmonic “Rainbow” for Super-Resolution Displacement Spectroscopic Analysis and Surface Biosensing
Authors: Zhou Lyu , Zhang Nan , Hsu Chang Chieh , Singer Matthew , Zeng Xie , Li Yizheng , Song Haomin , Jornet Josep , Wu Yun , Gan Qiaoqiang
Published: July 2023

We report a plasmonic “rainbow” trapping metasurface for on-chip spectrometers and sensors. By extracting the numerical centroid of the trapped surface plasmon waves, a miniaturized imager-based platform was demonstrated for super-resolution displacement spectroscopic sensing.
Chiral Optofluidics Based on Thermoplasmonic Circular Dichroism
Authors: Ma Cuiping , Yu Peng , Wang Zhiming
Published: July 2023

A new concept of optofluidic circular dichroism is proposed based on a chiral metamaterial perfect absorber. The maximum CD and g-factor reach 0.9 and 1.73, and the concept can be used for ight-sensitive optofluidic applications.
Plasmonic BICs as Biosensors with Better Detectivity
Authors: Li Zhichao , Prasad Ciril S. , Wang Xielin , Naik Gururaj V.
Published: July 2023

Plasmonic sensors exhibit high sensitivity due to enhanced local fields. But, their detectivity is poor because of their poor Q-factors. Using a plasmonic BIC, we experimentally demonstrate enhanced Q-factors in a plasmonic antimouse IgG sensor.
Photonic Chern and Weyl Systems in Multilayer Structures via Dimensional Extension
Authors: Vaidya Sachin , Jörg Christina , Goh Megan , Linn Kyle , Rechtsman Mikael C.
Published: July 2023

We explore topological physics and boundary states of Chern and Weyl systems experimentally using one-dimensional photonic multilayer structures endowed with additional artificial dimensions.
Single Shot Measurement of a Topological Invariant
Authors: Roberts Nathan , Nunn Josh , Souslov Anton , Mosley Peter J
Published: July 2023

We demonstrate a new method for taking a single shot measurement of a photonic topological invariant. The simplicity of this method is highlighted through our characterization of topological photonic crystal fiber.
Extreme Metaphotonics with Ultra High-Index Topological Insulators
Authors: Nandi Sukanta , Singh Danveer , Cohen Shany Zrihan , Lewi Tomer
Published: July 2023

We experimentally measure the complex dielectric constant of Bi2Se3 and Bi2Te3 topological insulators, revealing record high refractive index values peaking at n≈11. We further demonstrate deep-subwavelength metasurfaces with unit cell sizes smaller than λ/10, that simultaneously support large magnetic and electric field enhancements.
Photonic quadrupole topological insulator using orbital-induced synthetic flux
Authors: Schulz Julian , Noh Jiho , Benalcazar Wladimir A. , Bahl Gaurav , von Freymann Georg
Published: July 2023

We demonstrate that mixing different orbitals can induce synthetic π-flux threading the lattice. As an experimental demonstration of such a concept, we realize a quadrupole topological insulator in a photonic lattice.
Second-harmonic conformal transformation for visible and in-situ detection of infrared optical vortices
Authors: Liu Yuan , Chen Wei , Ming Yang , Zhang Wang , Tang Jie , Yuan Rui , Hu Wei , Lu Yan-Qing
Published: July 2023

Conformal transformation provides an effective way to detect optical orbital angular momentum (OAM). We demonstrate here a second-harmonic spiral transformation that enables infrared-visible detection of OAM states with a low energy loss. Remarkably, we predict and observe a record-high optical finesse, indicating improved separation efficiency enabled by this method.
Engineering dimensionality of collective dipole-dipole interactions using a nanophotonic environment
Authors: Boddeti Ashwin K. , Wang Yi , Juarez Xitlali , Boltasseva Alexandra , Alaeian Hadiseh , Odom Teri W. , Jacob Zubin
Published: July 2023

We experimentally demonstrate reduced dimensionality in a interacting ensemble of emitters. The well-known stretched exponential decay dynamics, I(t)/I0 =exp(−γ
D
t)exp(−αt
β
) with β = 0.5 in 3D geometries, is strikingly modified in a nanophotonic environment that supports long-range interaction to β ∼ 0.3
Moderate-Refractive-Index Mie Resonators for Versatile Modulation of Two-Dimensional Excitons
Authors: Fang Jie , Zheng Yuebing
Published: July 2023

By coupling well-designed moderate-refractive-index Mie resonators to monolayer semiconductors, we have demonstrated efficient modulation of two-dimensional excitons in multiple dimensions: far-field excitonic radiation patterns, intrinsic excitonic quantum dynamics, and bosonic exciton-polariton emission lines.
Non-Hermitian metasurface for asymmetric thermal emission
Authors: Prasad Ciril S. , Everitt Henry O. , Naik Gururaj V.
Published: July 2023

Non-Hermitian optics provides a unique platform to take advantage of absorption losses in materials and control radiative properties. We demonstrate a non-Hermitian metasurface that exhibit directional suppression of thermal radiation while maintaining transmission in mid-infrared.
A High-Quality-Factor Chiral Metasurface for Valley-Polarized Emission and Chiral Exciton-Polaritons
Authors: Pan Feng , Dixon Jefferson , Dagli Sahil , Dionne Jennifer
Published: July 2023

A high-quality-factor chiral metasurface is designed and fabricated to be interfaced with monolayer tungsten diselenide (WSe2) for valley-polarized emission and creating chiral exciton-polaritons.
Distributed entanglement and teleportation on a quantum network
Authors: Hermans S. L. N. , Pompili M. , Baier S. , Beukers H.K.C , Humphreys P.C. , Schouten R. N. , Vermeulen R. F. L. , Tiggelman M. J. , dos Santos Martins L. , Dirkse B. , Borregaard J. , Wehner S. , Hanson R.
Published: July 2023

We report on the realization of a multi-node quantum network. Using the network, we have demonstrated three protocols; generation of a entangled state shared by all nodes, entanglement swapping and quantum teleportation between non-neighboring nodes.
Nonlocality detection in photonic triangle networks
Authors: Suprano Alessia , Polino Emanuele , Poderini Davide , Rodari Giovanni , Agresti Iris , Milani Giorgio , Carvacho Gonzalo , Canabarro Askery , Moreno George , Wolfe Elie , Spekkens Robert W. , Chaves Rafael , Sciarrino Fabio
Published: July 2023

We implement triangle causal structures in photonics platforms and detect different forms of nonlocality. In particular, we focused on the Genuine Multipartite Non-locality and on the nonlocality exhibited in a network without freedom of choice.
Wavelength-Selective Distribution of Polarization Entanglement over Deployed Fiber
Authors: Ramesh Anirudh , Chung Joaquin , Kanter Gregory , Peña Cristián , Plunkett Robert K. , Xie Si , Spentzouris Panagiotis , Kettimuthu Rajkumar , Kumar Prem
Published: July 2023

We demonstrate distribution of polarization entangled photon-pairs across multiple channels in a 6 km loop of deployed fiber. We use an all-optical networking switch to route Bell-state photons in three different wavelength pairs and verify entanglement distribution in all channel pairs by measuring two-photon interference fringes.
Unipolar pulse generation from heterostructure charging dynamics
Authors: Wen Qiannan , Meineke C. , Prager M. , Hayes J. , Kastner L. Z. , Schuh D. , Fritsch K. , Pronin O. , Stein M. , Schäfer F. , Chatterjee S. , Bougeard D. , Huber R. , Kira M.
Published: July 2023

General charging theory is presented for quantum heterostructures and terahertz emission. Theory–experiment demonstration of 0.45 cycle pulse yields record unipolarity, 4:1 ratio between positive and negative half-cycles.
Direct Imaging of Band Structure in Twisted Bilayer Photonic Crystal Slabs
Authors: Tang Haoning , Du Fan , Lou Beicheng , Zhang Mingjie , Ni Xueqi , Xu Weijie , Jin Rebekah , Fan Shanhui , Mazur Eric
Published: July 2023

We demonstrate the fabrication of a twisted bilayer photonic crystal and direct imaging of its photonic band structure across the telecom band. The experimental results are in good agreement with theory.
Ultra-High-Q substrate-mode coupled resonances in complementary THz metamaterial
Authors: Ben-Atar Kobi , Han Zhengli , Frydendahl Christian , Mazurski Noa , Han Zhanghua , Levy Uriel
Published: July 2023

We demonstrate experimentally and numerically a complementary metallic disk-hole array utilizing the coupling between lattice resonances and Fabry-Pérot resonances, and features in-substrate modes with experimentally obtained record breaking Q factors of ~750 in the THz.
Cascaded-Mode Resonators
Authors: Ginis Vincent , Benea-Chelmus Ileana-Cristina , Lu Jinsheng , Piccardo Marco , Capasso Federico
Published: July 2023

We introduce cascaded mode resonators. These are optical resonators where different transverse modes are coupled via a specific cascade to form a longitudinal super-mode with remarkable propagation properties and a modified resonance spectrum.
GaAs Site-controlled Pyramidal Quantum Dots as Spin Qubit Sources for a Photonic Cluster State Construction: the Role of Light-hole-like Excited States
Authors: Mattana Francesco , Jahromi Iman Ranjbar , Ronco Giuseppe , Rota Michele , Basset Francesco Basso , Trotta Rinaldo , Pelucchiand Emanuele , Juska Gediminas
Published: July 2023

We present a comprehensive spectroscopic study of highly uniform energetic structure of Pyramidal site-controlled GaAs quantum dots specifically directing our interest to their applicability to the photonic cluster state generation.
Combining Surface Acoustic Waves with Gated Quantum Dots
Authors: Wang Zixuan , Imany Poolad , DeCrescent Ryan A. , Bush Joseph , Mirin Richard P. , Silverman Kevin L.
Published: July 2023

We demonstrate InAs quantum dots (QDs) with near-transform-limited optical linewidths using a gated structure. This gate structure is shown to be compatible with surface acoustic waves. This technological development may enable low-noise quantum transduction.
Automated Bell Inequality Violation using Uncalibrated Fiber Squeezing Polarization Controllers
Authors: Dowling Evan , Morris Mark , Baumgartner Gerald , Roy Rajarshi , Murphy Thomas E.
Published: July 2023

We experimentally report on a real-time self-guided method to search for maximal CHSH violations between two observers sharing polarization entangled photon pairs using uncalibrated piezoelectric fiber squeezers as polarization controllers.
Distribution of Time-Bin Entangled Photons through a 7.7 km Hollow-Core Fiber
Authors: Antesberger Michael , Richter Carla M. D. , Poletti Francesco , Petropoulos Periklis , Alia Obada , Kanellos George , Hübel Hannes , Rozema Lee A. , Trenti Alessandro , Walther Philip
Published: July 2023

We distribute entangled time-bin qubits, separated by 200 picoseconds, through a low-latency 7.7 km hollow-core fiber. Due to dispersion, these time bins cannot be resolved when sent through commercial silica fiber of the same length.
Hyperspectral Cathodoluminescence Imaging of Strain Localized Quantum Emitters in Multilayer GaSe
Authors: Lawrie Benjamin , Luo Weijun , Puretzky Alexander , Eichman Gage , Ling Xi
Published: July 2023

We reveal the effect of strain localization on GaSe single photon emitters using correlative cathodoluminescence, photoluminescence, and atomic force microscopies; together these measurements illustrate the nanoscale limits of strain control for integrated quantum photonics.
Room-Temperature Optically Detected Magnetic Resonance of GaN Defect Single-Photon Emitters
Authors: Luo Jialun , Geng Yifei , Rana Farhan , Fuchs Gregory D.
Published: July 2023

We report the first observation of optically detected magnetic resonance in defect-based single-photon emitters in GaN.
Dissipative Cavity Solitons at the Boundaries of a Topological Lattice
Authors: Leefmans Christian , Englebert Nicolas , Williams James , Goldman Nathan , Gorza Simon-Pierre , Leo Franc¸ois , Marandi Alireza
Published: July 2023

We experimentally observe the formation of dissipative cavity solitons at the boundaries of a topological lattice. Our work reveals new opportunities to study both nonlinear topological photonics and dissipative cavity solitons in coupled resonator arrays.
Characterization of Millimeter-Wave Superconducting Circuits With an Optically-Driven Cryogenic Source
Authors: Multani Kevin , Jiang Wentao , Nanni Emilio A. , Safavi-Naeini Amir
Published: July 2023

We demonstrate a cryogenic optically-driven millimeter-wave source generating signals at the 4 K stage of a dilution refrigerator with a high-speed photodiode.
Waveguide-Integrated Superconducting Nanowire Arrays for Single Photon Detection with Number-Resolution
Authors: Schütte Jonas , Wolff Martin A. , Häußler Matthias , Gehring Helge , Pernice Wolfram , Schuck Carsten
Published: July 2023

We fabricated and characterized waveguide-integrated photon number resolving superconducting nanowire single photon detectors with up to 16 detector elements obtaining a high timing resolution of 10.4 ps.
Distributed detection of quantum light: efficient photon number resolution without optical mode multiplication
Authors: Vetlugin Anton N. , Dong Shuyu , Martinelli Filippo , Soci Cesare
Published: July 2023

We demonstrate a new method of quantum light detection based on coherent absorption of a single optical mode in a distributed array of superconducting nanowire singlephoton detectors for efficient and scalable photon number resolution.
Quantum Photonic chip-based Realization of Logic Gates
Authors: Li Y. , Zhang H. , Zhu H.H. , Kwek L. C. , Liu A. Q.
Published: July 2023

Quantum logic gates are the backbones of quantum information processing (QIP), wherein the typical three-qubit Fredkin and Toffoli gates are essential in quantum computation and communication. Here we propose a scheme for realizing such kinds of three-qubit based on a programmable nonunitary matrix on a photonic chip.
Generalized Conditional Displacement
Authors: Even-Haim Shiran , Diringer Asaf A. , Ruimy Ron , Baranes Gefen , Gorlach Alexey , Hacohen-Gourgy Shay , Kaminer Ido
Published: July 2023

We present a generalization of the conditional displacement operator, conditioned on a qudit ancilla, and discuss possible implementations. This generalization provides a building block for quantum computation with grid states, allowing efficient error correction protocols.
Photonic crystal cavities for enhancing the response of large-area scintillators
Authors: Ye Wenzheng , Bizarri Gregory , Birowosuto Muhammad Danang , Wong Liang Jie
Published: July 2023

We show that photonic crystal cavities can tailor the intrinsic emission spectrum of large-area scintillators via the Purcell effect, enhancing the overall photodetector signal by over 200% from improved overlap with the detector response.
Reaching the Ultimate Efficiency of Solar Energy Harvesting with a Nonreciprocal Multijunction Solar Cell
Authors: Park Yubin , Zhao Bo , Fan Shanhui
Published: July 2023

We introduce a nonreciprocal multijunction solar cell that can reach the Landsberg limit with an infinite number of layers. With a finite number of layers, such a cell can outperform a standard reciprocal multijunction cell.
Generation of Time-Energy Entangled Photon Pairs in Bichromatic Photonic Crystal Cavities
Authors: Barone Andrea , Chopin Alexandre , Poempool Thanavorn , Clementi Marco , Marcia Alessandro , Ghorbel Inès , Combriè Sylvain , Liscidini Marco , Gerace Dario , Raineri Fabrice , Fromherz Thomas , Bajoni Daniele , De Rossi Alfredo , Galli Matteo
Published: July 2023

MHz-rate generation of time-energy entangled photon pairs is demonstrated on Silicon and InGaP bichromatic Photonic Crystal cavities with µW-level pump power. High visibility up to 94% is measured with 1 second integration.
Towards kHz optical linewidth, millisecond spin coherence erbium telecom qubits in epitaxial thin films
Authors: Gupta Shobhit , Liu Shihan , Wang Chao-Fan , Huang Yizhong , Zhong Tian
Published: July 2023

Erbium telecom qubits in C3i centrosymmetric site in epitaxial yttrium oxide thin films are coupled to optical and microwave resonators, demonstrating millisecond spin coherence and kHz optical linewidths approaching the radiative limit.
High-Frequency Dissipative Optomechanics
Authors: Primo André G. , Pinho Pedro V. , Benevides Rodrigo , Gröblacher Simon , Wiederhecker Gustavo S. , Alegre Thiago P. M.
Published: July 2023

We demonstrate dissipative optomechanical transduction and backaction in coupled nanobeams. Compared to previous demonstrations, our system corresponds to a hundredfold increase in mechanical frequency and displays a record-high dissipative optomechanical coupling.
Stimulated Brillouin-like Optomechanics with Surface Acoustic Wave Cavities
Authors: Iyer Arjun , Kandel Yadav , Xu Wendao , Nichol John , Renninger William H.
Published: July 2023

Stimulated Brillouin-like optomechanical coupling to Gaussian surface acoustic wave (SAW) cavity modes with record-low losses, is predicted and observed, enabling contact-free optical control of SAW cavities for a wide range of frequencies and material platforms.