bluuebunny/crossref_metadata_2025 huggingface dataset:
Domain-engineered Thin-film Lithium Niobate for Frequency-multiplexed Photon-pair Generation
Authors: Yang Jiayu , Xin C. J. , Shams-Ansari Amirhassan , Lu Shengyuan , Sinclair Neil , Lončar Marko
Published: September 2024

The ferroelectric domains of thin-film lithium niobate are structured for multi-wavelength nonlinear optical frequency conversion. We target frequency-multiplexed photon-pair generation, in which we show conditions for five pair sources (purity > 90%) in a single waveguide.
Silicon Nitride Nanobeam Cavity Enhanced Second-Harmonic Generation of Monolayer WSe2
Authors: Rarick Hannah , Kala Abhinav , Pumulo Sinabu , Manna Arnab , Sharp David , Munley Christopher , Majumdar Arka
Published: September 2024

Integration of transition metal dichalcogenides onto photonic platforms enables on-chip nonlinear optical effects, like second-harmonic generation (SHG). In this paper, we demonstrate cavity enhanced SHG by integrating monolayer WSe2 onto a silicon nitride nanobeam.
Non-Geodesic Propagation in Integrated Curved Nanophotonic Structures
Authors: Roth Michal , Israeli Uri , Bekenstein Rivka
Published: September 2024

We present an experimental observation of electromagnetic wavepackets propagating on non-geodesic trajectories in curved space by shaping them via integrated nanophotonic grating and confining them to a nanophotonic structure emulating two-dimensional curved space.
Arbitrary Dispersion Engineering in High-Refractive-Index Photonic Crystal Cavities
Authors: Nardi Alberto , Davydova Alisa , Karg Thomas , Kippenberg Tobias J. , Seidler Paul
Published: September 2024

We present an algorithm to arbitrarily engineer the dispersion of photonic-crystal Fabry-Pérot resonators via the accurate design of chirped reflectors, opening avenues to exotic dispersion profiles, dispersive-wave engineering and near-zero-dispersion soliton microcombs.
Fabrication and Characterization of a Quantum Dot Polarization Demultiplexer
Authors: Eshbaugh William , Chanana Ashish , Song Junyeob , Melo Emerson G. , Perez Edgar , Addamane Sadhvikas , Haws Cori , Sapienza Luca , Silva Saimon F. C. , Rastelli Armando , Song Jin-Dong , Srinivasan Kartik , Flagg Edward B. , Davanco Marcelo
Published: September 2024

We fabricate an inversely-designed nanophotonic quantum dot polarization demultiplexer and observe the coupling of single embedded InAs quantum dot to two orthogonal output waveguides.
A Continuous Variable Quantum Compiler
Authors: Feldman Matthew , Volkoff Tyler , Holmes Zoe , Hong Seongjin , Marvinney Claire , Pooser Raphael , Sornborger Andrew , Marino Alberto M.
Published: September 2024

We implement a continuous-variable quantum compiler that can learn a linear phase operation with a fourfold increase in precision and a factor of 80 reduction in time to solution when quantum resources are used.
Crossover from non-thermal to thermal photoluminescence from metals excited by ultrashort light pulses
Authors: Sivan Yonatan , Un Ieng Wai , Kalyan Imon , Lin Kaiqiang , Lupton John M. , Bange Sebastian
Published: September 2024

We provide a complete quantitative theory for the long-disputed effect of (nonlinear) photoluminescence from metals following pulsed illumination and use it to explain various contradicting or hard-to-explain experimental measurements.
Quantum Network Component Development on the 4H-Silicon-Carbide-on-Insulator Platform
Authors: Yurash Brett , Huang Biqin , Bai Xiwei , Yang Louis , Whiteley Samuel , Lipton Jason , Rubin Sam , Wang Tong , Wang Shuoqin , Graetz Jason , Ladd Thaddeus , Cui Shanying
Published: September 2024

We present our progress toward the integration of various components needed for a quantum network node on the 4H silicon carbide on insulator photonic platform, including defects in waveguides, photonic filters, and waveguide integrated detectors.
Spatially structured bound states in the continuum engineered by nonlocal metasurfaces
Authors: Overvig Adam
Published: September 2024

We demonstrate spatial eigenstates embedded in the continuum, exhibiting diverging Q-factor when excited by customized wavefronts. This approach expands bound states in the continuum beyond the realm of plane waves in nonlocal metasurfaces.
Quantum network nodes based on diamond photonic nanostructures
Authors: Codreanu Nina , Pasini Matteo , Turan Tim , De Santis Lorenzo , Ruf Maximilian , Beukers Hans K.C. , Waas Christopher , Smulders Caroline E. , Brevoord Julia M. , Gröblacher Simon , Hanson Ronald
Published: September 2024

We present our optimized diamond fabrication process based on quasi-isotropic crystal-plane-dependent reactive-ion-etching at low and high temperature plasma regime. We demonstrate successful integration of SnV centers in diamond waveguides showing quantum non-linear effects. We report on our latest results on all-diamond photonic crystal cavities.
Inter-pulse intensity correlation in gain-switched semiconductor laser for quantum key distribution
Authors: Gao Yuanfei , Wang Tao , Wang Yixin , Yuan Zhiliang
Published: September 2024

The transmitters in QKD usually employ a gain-switched semiconductor lasers (GSSL). Here, we investigated the intensity fluctuation and correlation between adjacent pulses. Strong intensity fluctuation and negative correlation were observed under low driving currents. Utilizing rate equations in our simulation, we confirmed the fluctuation resulted from an instability of GSSL at high repetition frequency. This work would be useful to test whether the transmitter is operating at optimal state.
Exploring The Potential of Probabilistic Shaping Technique in Quantum Key Distribution Systems
Authors: Parente Emanuele , Notarnicola Michele , Olivares Stefano , Forestieri Enrico , Potì Luca , Secondini Marco
Published: September 2024

We investigated the role of probabilistic shaping in the optimization of the secure key rate of a continuous variable quantum key distribution system with discrete modulation in both homodyne and heterodyne scheme.
Dual Focus Wavefront Tilting Silicon Nitride Metalens Manufactured using Deep-Ultraviolet Scanner Lithography
Authors: De Vocht David , Millan-Mejia Alonso , Savov Angel , Jiao Yuqing , Bente Erwin
Published: September 2024

We demonstrate advanced Silicon Nitride metalenses manufactured using 193 nm scanner lithography. The metalens have overlapping focal points for two incident beams angled at ±5° distant at 10 mm, relevant for gas sensing and metrology.
Polarization tomography of photon pairs emitted by nonlinear metasurfaces with quasi-bound states in the continuum resonances
Authors: Noh Jiho , Santiago-Cruz Tomás , Gennaro Sylvain D. , Sultanov Vitaliy , Brener Igal , Chekhova Maria V.
Published: September 2024

We use complete polarization tomography of photon pairs generated in semi-conductor metasurfaces via spontaneous parametric down-conversion to show how bound states in the continuum resonances affect the polarization state of the emitted photons.
Controlling the Spontaneous Emission Rate by Preparation of Photonic Time-Crystals
Authors: Lyubarov M. , Segev M.
Published: September 2024

We show that the spontaneous emission rate (SER) in Photonic Time-Crystals (PTC) can be controlled by how we initiate the temporal modulation. Starting modulation abruptly or adiabatically either increases or drops SER near momentum bandgaps.
Electron-Heralded Quantum X-ray Source
Authors: Shi Xihang , Ruimy Ron , Balanov Amnon , Kaminer Ido
Published: September 2024

We present a concept for creating quantum X-ray radiation heralded by free electrons, showing conditions for squeezed vacuum and Schrodinger cat states of X-rays, created by post-selected pre-bunched electrons.
Coherent excitation of a tin-vacancy color center with the SUPER scheme
Authors: Torun Cem Güney , Gökçe Mustafa , Bracht Thomas K. , Monsalve Mariano Isaza , Benbouabdellah Sarah , Nacitarhan Özgün Ozan , Stucki Marco E. , Pieplow Gregor , Pregnolato Tommaso , Munns Joseph H. D. , Reiter Doris E. , Schröder Tim
Published: September 2024

We apply the novel coherent excitation scheme SUPER for the first time to a diamond color center using pulses detuned from the transition. This approach perspectively enables spectral filtering of the excitation field.
An Experimental Platform to Control Solid-State Spin Systems with Engineered Electron Beams
Authors: Catanzaro Dominic , Grzesik Jakob , Roques-Carmes Charles , Leedle Kenneth J. , Black Dylan S. , Solgaard Olav , Vučković Jelena
Published: September 2024

We have built an experimental platform to study and control interactions between modulated free-electron beams and microwave spins. Our platform relies on optical readout of spin states in nitrogen vacancy centers in diamond.
Signatures of dynamically dressed states
Authors: Boos Katarina , Kim Sang Kyu , Bracht Thomas , Sbresny Friedrich , Kaspari Jan , Cygorek Moritz , Rauhaus William , Calcagno Carolin , Finley Jonathan J , Reiter Doris E , Müller Kai
Published: September 2024

We present the observation of the complete resonance fluorescence emission spectrum of a single quantum two-level system driven by finite Gaussian pulses, consisting of the long-predicted characteristic Mollow triplet with multiple sidebands.
Measuring impossible parameters with indefinite causal order
Authors: McKinlay Jaden , Rambach Markus , Goldberg Aaron Z. , Heshami Khabat , Sánchez-Soto Luis , White Andrew G.
Published: September 2024

We demonstrate that a probe traversing a noisy channel and a measurement channel withstands arbitrarily more noise than any system with definite causal order, even if the probe is fully mixed and the noisy channel erases all information.
Non-Gaussian States Generation Using a High-Speed Single-Pixel Superconducting Nano-Strip Photon-Number-Resolving Detector
Authors: Takahashi Kazuma , Endo Mamoru , Nomura Takefumi , Sonoyama Tatsuki , Kashiwazaki Takahiro , Inoue Asuka , Umeki Takeshi , Yabuno Masahiro , China Fumihiro , Terai Hirotaka , Miki Shigehito , Nehra Rajveer , Takase Kan , Asavanant Warit , Furusawa Akira
Published: September 2024

We performed the first non-Gaussian state generation through two photon subtraction with a recently developed single-pixel superconducting nano-strip photon-number-resolving detector. We observed negative values of Wigner function of W(0,1.0) = 0.0072 ± 0.006 without loss correction.
Single Photon Entangled State Tomography in a Single Measurement Setup
Authors: Ziv Ron , Shafran Roey , Segev Mordechai
Published: September 2024

We propose a method for reconstructing density matrices of single-photon OAM-polarization entangled states using a single intensity measurement, facilitated by coupling the state to higher-order OAM modes.
High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator
Authors: Yuan Zhiquan , Li Bohan , Jin Warren , Wu Lue , Guo Joel , Ji Qing-Xin , Feshali Avi , Paniccia Mario , Bowers John , Vahala Kerry
Published: September 2024

A hybrid-integrated visible laser source is demonstrated using the photogalvanic effect. Self-injection locking of a 1560 nm semiconductor laser to a high-Q Si3N4 resonator generates high-coherence 780 nm emission (4 Hz2/Hz frequency noise floor).
An ab initio framework for understanding and controlling quantum fluctuations in complex light-matter systems
Authors: Rivera Nicholas , Uddin Shiekh Zia , Seyler Devin , Salamin Yannick , Sloan Jamison , Roques-Carmes Charles , Xu Shutao , Sander Michelle , Soljačić Marin
Published: September 2024

We develop a new general theory of quantum noise in photonics. As an example, we demonstrate strong quantum correlations and squeezing in supercontinuum generation. Our results enable overcoming quantum noise limits in many optoelectronic systems.
Multimode amplitude squeezing through cascaded nonlinear processes
Authors: Pontula Sahil , Salamin Yannick , Soljačić Marin
Published: September 2024

We show how engineering a multimode nonlinear cavity with cascaded three wave mixing processes creates significant intracavity and output amplitude noise squeezing over 10 dB below the shot noise limit for multiple frequency modes.
Dual-Modal Nanoplasmonic Light Upconversion in Broadband Multiresonant Plasmonic Metasurfaces
Authors: Tali Seied Ali Safiabadi , Zhou Wei
Published: September 2024

This study investigates dual-modal plasmon-enhanced light upconversion, combining anti-Stokes photoluminescence (ASPL) and second-harmonic generation (SHG) in Ag/SiO2/Ag nanolaminate plasmonic crystal metasurfaces. It highlights the distinct emission behaviors of ASPL and SHG in multiresonant plasmonic nanocavities.
Pseudospin Localization of Light in Nonlinear Optics
Authors: Izhak Shani , Karnieli Aviv , Yesharim Ofir , Tsesses Shai , Arie Ady
Published: September 2024

We predict a new universal pseudospin localization phenomenon and demonstrate it experimentally in an optical analogue of a spin-glass material – a disordered sum-frequency generation process in a nonlinear photonic crystal.
Quantum decay in non-Hermitian subsystems induced by artificial environments
Authors: Selim Mahmoud A. , Ehrhardt Max , Ding Yuqiang , Perez-Leija Armando , Zhong Qi , Pyrialakos Georgios G. , Heinrich Matthias , Szameit Alexander , Christodoulides Demetrios , Khajavikhan Mercedeh
Published: September 2024

We propose a systematic methodology for realizing quantum parity-time symmetric subsystems in a fully Hermitian photonic environment. We show that these artificial systems behave in a similar manner to their non-Hermitian counterparts.
Noise-free Topological Features of Entangled States
Authors: Ornelas Pedro , Nape Isaac , De Mello Koch Robert , Forbes Andrew
Published: September 2024

Entangled states are a promising resource for many quantum technologies, however they are highly susceptible to noise. Here we identify non-local topological features of entangled states which are robust to noise.
Real Time Generation and Measurement of 60-GHz Optical Entangled States
Authors: Kawasaki Akito , Brunel Hector , Ide Ryuhoh , Suzuki Takumi , Kashiwazaki Takahiro , Inoue Asuka , Umeki Takeshi , Yamashima Taichi , Sakaguchi Atsushi , Takase Kan , Endo Mamoru , Asavanant Warit , Furusawa Akira
Published: September 2024

We generate and perform real-time measurement of optical entangled states with 60-GHz bandwidth using waveguide optical parametric amplifiers and homodyne measurement with phase sensitive amplification, foreseeing quantum information processing with ultrafast clock frequency.
Integrated High-dimensional Orbital Angular Momentum Entangled Photon Source
Authors: Huang Jieshan , Li Xudong , Yuan Jingze , Mao Jun , Gong Qihuang , Wang Jianwei
Published: September 2024

We experimentally demonstrate the generation of arbitrary entangled 2-photon 5-dimensional orbit angular momentum(OAM) states on a programmable silicon photonic chip. High-dimensional witness and tomography are used to verify the genuine entanglement.
High brightness coherently driven active fiber cavity soliton crystals by optical gain clamping
Authors: Simon Corentin , Englebert Nicolas , Leo François , Gorza Simon-Pierre
Published: September 2024

Active cavity solitons suffer from gain saturation preventing high average cavity power. We overcome this limitation by optical gain clamping and demonstrate the generation of numerous solitons, opening the way to high power soliton crystals.
Enhanced Frequency Combs via Self-Crystallizing Cavity Solitons
Authors: Campbell Graeme N. , Hill Lewis , Del’Haye Pascal , Oppo Gian-Luca
Published: September 2024

A “self-crystallization” phenomenon of dark vectorial temporal cavity solitons can occur in Fabry-Pérot resonators, with major applications in frequency comb generation. This phenomenon arises from the long-range interactions between symmetry-broken light fields with orthogonal polarizations.
Geometric Similarities and Topological Phases in Surface Magnon Polaritons
Authors: Qian Chen , Jin Jicheng , Christensen Thomas , He Li , Sigillito Anthony , Mele Eugene J. , Zhen Bo
Published: September 2024

We investigate the properties of surface-magnon polaritons. Our theory predicts ways to strongly localize and enhance magnetic fields in the microwave range and to develop compact and lossless connectors interconnecting waveguides with different effective impedances.
Room temperature electroluminescence from isolated colour centres in van der Waals semiconductors
Authors: Park Gyuna , Zhigulin Ivan , Jung Hoyoung , Horder Jake , Yamamura Karin , Han Yerin , Cho Hyunje , Jeong Hyeon-Woo , Watanabe Kenji , Taniguchi Takashi , Oh Myungchul , Lee Gil-Ho , Jo Moon-Ho , Aharonovich Igor , Kim Jonghwan
Published: September 2024

First demonstration of electroluminescence from quantum emitters in hexagonal boron nitride by utilizing a novel excitation mechanism that is distinct from traditional p-n junctions. We unveil stable isolated narrowband electroluminescence even at room temperature.
Phase stabilization with single photon detection for quantum networks
Authors: Jabir M.V. , Annafianto N. Fajar R. , Burenkov I. A. , Battou A. , Polyakov S. V.
Published: September 2024

We demonstrate phase stabilization of a 3.2 km quantum network link with faint light. Our stabilization signal can empower phase-reliant quantum communication protocols and supports coexistent multiplexing of classical/quantum channels in a scaleable quantum network.
Teleportation of entanglement in the Fermilab Quantum Network
Authors: Davis Samantha I. , Valivarthi Raju , Youssef Rahaf , Li Chang , Narváez Lautaro , Peña Cristián , Xie Si , Spentzouris Panagiotis , Spiropulu Maria
Published: September 2024

We demonstrate an entanglement swapping protocol for time-bin qubits in a fiber-based quantum network at Fermilab. We report state-of-the-art entanglement swapping visibilities of up to 92.3 ± 3.8%.
Enhanced Light-Matter Interactions for a Single T Center in a Silicon Nanocavity
Authors: Wong Yu-En , Johnston Adam , Felix-Rendon Ulises , Chen Songtao
Published: September 2024

We investigate light-matter interactions for a single T center coupled to a silicon photonic crystal cavity. By solving Lindblad master equation, we extract the cavity-QED parameters for the coupled system.
Nonlinear mode stabilization of full-Poincaré beams in atmospheric turbulence
Authors: Nguyen Long D. , Choudhary Saumya , Bhatt Dhanush , Boyd Robert W.
Published: September 2024

We discuss a regime of stable nonlinear propagation of a high-powered laser beam with a full-Poincaré polarization structure through atmospheric turbulence, enabling higher power transfer to distant localized areas.
Amplified Cooling of Light via Emergent Onsager Irreversible Thermodynamics
Authors: Xiong Zhongfei , Wu Fan O. , Liu Yang , Jiang Jian-Hua , Christodoulides Demetrios N. , Chen Yuntian
Published: September 2024

While conventional cooling schemes solely depend on temperature differences, here we demonstrate that in photonics configurations, amplified cooling can be achieved by judiciously manipulating Onsager coefficients through engineering the density of states of the structure.
Shaping of Time-Resolved Biphoton Correlations with a Microresonator-Based Spectral Shaper
Authors: Cohen Lucas M. , Wu Kaiyi , Myilswamy Karthik V. , Lingaraju Navin B. , Lu Hsuan-Hao , Lukens Joseph M. , Weiner Andrew M.
Published: September 2024

We report on the manipulation of the time-resolved biphoton correlation function using a sub-GHz resolution silicon nitride microresonator-based spectral shaper capa-ble of programmable amplitude and phase modulation.
Frequency Bin Encoding and Graphs
Authors: Banic Milica , Sipe J. E. , Liscidini Marco
Published: September 2024

We present a strategy for designing passive sources of multipartite frequency-bin-encoded states, based on the target state’s graph representation. As examples we present integrated sources of three- and four-photon GHZ states, and four-photon L
a
4 states.
Comb-Like Time-Frequency Entanglement via Two-Photon Interference and Distribution
Authors: Wang Sheng-Hung , Chen Yen-Hung , Tsai Pin-Ju
Published: September 2024

We demonstrate comb-like time-frequency entangled (TFE) photon pair generation, distribution, and verification in a single interferometer. The comb-TFE photon source showcases its high entanglement nature and robust adaptability in a 2.64-km fiber network.
Four-Wave Mixing in Photonic Time-Crystals
Authors: Cohen Moshe-Ishay , Konforty Noa , Segev Mordechai
Published: September 2024

We study the process of four wave mixing in photonic time-crystals. We find that the phase matching condition is altered by the momentum band-structure of the time-crystal, enabling the enhancement of any chosen frequency.
Mapping the temporal evolution of the refractive index in few-femtosecond time-varying media
Authors: Segal Ohad , Lyubarov Mark , Fruhling Colton , Boltasseva Alexandra , Shalaev Vladimir M. , Segev Mordechai
Published: September 2024

We present the temporal evolution of the refractive index of a homogenous time-varying medium, reconstructed from experimental time-gated measurements of optical time-refraction in the single-cycle regime.
Investigation of Shock-waves Generated by Laser-induced Discharges Triggered by UV Filaments
Authors: Rastegari Ali , Diels Jean-Claude
Published: September 2024

Shock-waves generated by UV filament induced electrical discharges are investigated. A nonlinear supersonic regime is followed by linear shock wave propagation at a sound velocity affected by the total energy deposited into the electrical.
Optimization of Diffraction Efficiency for Ionization-Induced Plasma Gratings
Authors: Wang M. M. , Fasano N. M. , Perez-Ramirez V. M. , Giakas A. M. , Ou K. , Cao S. , Michel P. , Mikhailova J. M. , Edwards M. R.
Published: September 2024

A plasma grating is generated by temporally crossing and interfering two femtosecond beams to create modulated ionization. We achieve maximum Bragg diffraction efficiency of 35% by tuning grating transverse size, length, and incident beam configurations.
Interplay of near band-edge excitations with unbound charge-carriers
Authors: Anders D. , Stein M. , Chatterjee S.
Published: September 2024

Electron-exciton scattering in semiconductor quantum wells is investigated by ultrafast optical pump-terahertz probe spectroscopy. The energy of the electron-hole plasma is varied, revealing a strong energy dependence of elastic and inelastic scattering.
Control of Many-Particle States in MoSe2 Monolayer Observed by Double-Quantum Spectroscopy
Authors: Alfrey Adam , Hipsley Blake , Liu Chenxi , Deng Hui , Cundiff Steven T.
Published: September 2024

Atomically-thin semiconductors host strongly-correlated states due to the reduced Coulombic screening. Using double-quantum coherent spectroscopy, we observe interacting doubly-excited exciton states in monolayer MoSe2. Electrostatically injected electrons are observed to screen long-range interactions.
Upper limit to quantum interaction strength between free electrons and electromagnetic single modes
Authors: Xie Zetao , Chen Zeling , Li Hao , Yan Qinghui , Chen Hongsheng , Lin Xiao , Kaminer Ido , Miller Owen D. , Yang Yi
Published: September 2024

Free–electron quantum optics facilitates electron-photon entanglement for quantum information processing. The challenge is finding specialized photonic-structures optimizing electron-photon interactions. We present a first-principle upper limit on the interaction strength, guiding the design of future structures.
Tailoring Ultrastrong Light-Matter Coupling Through Spatial Matter Design
Authors: Mornhinweg Joshua , Diebel Laura , Halbhuber Maike , Riepl Josef , Cortese Erika , De Liberato Simone , Bougeard Dominique , Huber Rupert , Lange Christoph
Published: September 2024

Controlling the spatial overlap of multiple modes of planar THz resonators ultrastrongly coupled to cyclotron resonances of Landau-quantized electrons allows us to design coupling pathways, similarly to the selection rules of classical optics.
Optical pumping of electronic quantum Hall states with vortex light
Authors: Session D. , Mehrabad M. Jalali , Paithankar N. , Grass T. , Eckhardt C. , Cao B. , Forero D. Suárez , Li K. , Alam M. , Watanabe K. , Taniguchi T. , Solomon G. , Schine N. , Sau J. , Sordan R. , Hafezi M.
Published: September 2024

We present a novel mechanism for the transfer of orbital angular momentum from optical vortex beams to electronic quantum Hall states. Specifically, we identify a robust contribution to the radial photocurrent in an annular graphene sample within the quantum Hall regime that depends on the vorticity of light. Our findings offer fundamental insights into the optical probing and manipulation of quantum coherence, with wide-ranging implications for advancing quantum coherent optoelectronics.
Stoichiometric Rare-Earth Materials in Solids as a Platform for Quantum Memory Devices
Authors: Pearson Donny R. , Riedel Zachary W. , Tobar Selvin , Prabhu Ashwith V. , Shoemaker Daniel P. , Goldschmidt Elizabeth A.
Published: September 2024

We present the characterization of stoichiometric europium materials as progress towards realizing long-lived, ensemble-based quantum memory devices. The candidate materials demonstrate inhomogeneous optical linewidths similar to those in doped materials with 1000x larger densities.
Demonstration of minimal higher-order topological insulators in strained photonic graphene
Authors: Liang Yongsheng , Xia Shiqi , Song Daohong , Chen Zhigang
Published: September 2024

We propose and experimentally demonstrate higher-order topological insulator (HOTI) states in strained photonic graphene, representing a two-band minimal HOTI model, where zero-energy corner and edge states are degenerated due to preserved inversion and chiral symmetries.
Topological Soliton Formation in a Nanophotonic Optical Parametric Oscillator
Authors: Englebert Nicolas , Gray Robert M. , Ledezma Luis , Marandi Alireza
Published: September 2024

We theoretically describe and experimentally observe signatures of spontaneous topological soliton formation through the locking of domain walls in a quadratic nonlinear resonator. These dark pulses can have a temporal duration of 65 fs.
Femtosecond ring-cavity Yb:YAG thin-disk oscillator with an intra-cavity peak power of 125 MW
Authors: Liu Heyan , Xuan Hongwen , Chen Hongshan , Hao Jingjie , Wang Qing , Yan Lisong , Zhang Jinwei
Published: September 2024

We report a multi-pass ring-cavity Kerr-lens mode-locked Yb:YAG thin-disk oscillator. The output pulses had an average power of 71.5W and a pulse duration of 175 fs. The intra-cavity peak power was calculated as 125 MW.
Multi-junction type large-aperture high-speed PIN-PD and its characteristics for optical wireless communications
Authors: Umezawa Toshimasa , Matsumoto Atsushi , Kanno Atsushi , Akahane Kouich , Yamamoto Naokatsu
Published: September 2024

We propose a multi-junction type large-aperture PIN photodetectors for high-speed optical wireless communication. A tradeoff solution between a large PD and high 3-dB bandwidth was proposed and experimentally confirmed.
Accelerated solar-blind optical communication via efficient deep ultraviolet LEDs incorporated with novel micro-trenched surface
Authors: Memon Muhammad Hunain , Yu Huabin , Chen Wei , Wang Rui , Sun Haiding
Published: September 2024

An efficient approach to enable high-speed solar-blind optical communication by implementing micro-trenches on the surface of DUV-LEDs. Remarkably, this simple approach leads to 13.6% higher optical bandwidth and boosted data rate by 54.7%.
Multibeam Optical Beamforming Demonstration of Hybrid Photonic Integrated Circuit based on a Blass Matrix
Authors: Camponeschi Federico , Gemmato Valentina , Scotti Filippo , Rinaldi Luca , Mohammad Ahmad W. , Roeloffzen Chris G. , van Dijk Paul W. , Ghelfi Paolo
Published: September 2024

This paper reports the first-ever demonstration of a multibeam optical beamforming based on a Blass matrix implemented in a hybrid photonic integrated circuit. The architecture serves as a Scan-on-Receive synthetic aperture radar for Earth observation.
Mode-folded phase shifter based Reconfigurable Optical Switch with 0.6V·cm Vπ·L on Thin-film lithium niobate for Channel Scalable Optical Interconnects
Authors: Wang Xinyi , Du Jiangbing , Liu Jiacheng , Xu Ke , He Zuyuan
Published: September 2024

A reconfigurable optical switch based on mode-folded phase shifter over LNOI is experimentally demonstrated with high switching efficiency of 0.6V·cm Vπ·L. The switching is intrinsically fast with channel number scalability covering 1-8 channels.
Error calibration for on-chip diffractive optical neural networks with Low-Rank Adaptation
Authors: Huang Yuyao , Fu Tingzhao , Huang Honghao , Sun Run , Liu Wencan , Yang Sigang , Chen Hongwei
Published: September 2024

We present a Low-Rank Adaptation algorithm for error calibration in on-chip diffractive optical neural networks (DONNs), achieving a 73% improvement of accuracy in MNIST image classification compared to non-calibrated ones.
Optical Pump Terahertz Probe: A Contact-Free Technique to Measure Ultrafast Photoconductivity in Emerging Materials
Authors: Neu Jens
Published: September 2024

I will present the basic concepts of Terahertz Time Domain Spectroscopy in combination with fs-laser pulse excitation of emerging materials, OPTP. I will highlight temporal resolution and emphasize how OPTP enhances our understanding of photoconductivity.
Superspectroscopy: 100-fold enhancement in THz time-domain imaging contrast via superoscillating waveform shaping
Authors: Peng Peisong , Lindberg Dustin R. , McCaul Gerard , Bondar Denys I. , Talbayev Diyar
Published: September 2024

We demonstrate, with both numerical simulation and experiment, that of all the waveforms that can exist in a band-limited system, superoscillation provides the best contrast for distinguishing optically similar substances.
9.1-fs pulse generation from 10 nJ Yb-fiber laser with cascaded nonlinear pulse compression
Authors: Kang Donguhn , Otsu Toshio , Tani Shuntaro , Kobayashi Yohei
Published: September 2024

we achieved a pulse duration of 9.1 fs at 10 nJ pulse energy by adopting a two-stage nonlinear pulse compression scheme with single-mode fibers (SMF) at a 90 MHz repetition rate.
Long-wave-infrared pulse generation in H2-filled hollow-core fiber
Authors: Chen Yi-Hao , Moses Jeffrey , Wise Frank
Published: September 2024

We present a two-color and two-pulse approach to femtosecond pulse generation at long-wave-infrared wavelengths in H2-filled hollow-core fiber. The technique numerically produces 88-fs pulses at 12 µm with 48 % quantum efficiency.
In Vivo Discontinuity Third-Harmonic-Generation Microscopy for Label-Free Imaging of Human Intraepidermal Nerve Fibers
Authors: Wu Pei-Jhe , Chao Chi-Chao , Liao Yi-Hua , Lin Wen-Ying , Hsieh Sung-Tsang , Sun Wei-Zen , Sun Chi-Kuang
Published: September 2024

Here we introduce discontinuity third-harmonic-generation microscopy, a noninvasive clinical imaging methodology offering three-dimensional visualization of free intraepidermal nerve endings. It provides a label-free imaging solution for diagnosing small fiber neuropathy at the point of care.
Polaritons and nanophotonics applications in Earth-Abundant Layered Materials
Authors: Barcelos Ingrid D.
Published: September 2024

We provide an overview for studying nano-optics of 2D natural phyllosilicates and briefly update applications that combine natural minerals, graphene, and phyllosilicate layers into functional heterostructures.
Substrate-inverted Multi-Material Integration Technology (SuMMIT)
Authors: Ranno Luigi , Dao Khoi Phuong , Hu Juejun , Sia Jia Xu Brian
Published: September 2024

Contemporary silicon photonic heterogeneous integration has indicated a series of challenges. Through the strategic consolidation of foundry-level silicon photonics, and hybrid Cu bonding techniques, we propose SuMMIT, where wafer-scale multi-material integration challenges can be overcome.
Lithium Niobate Chip-Based Ultrafast Optical Signal Processor
Authors: Cheung Clayton , Ren Xinyi , Lee Chun-Ho , Kopparapu Reshma , Yue Yu , Chen Zaijun , Yu Mengjie
Published: September 2024

We realize an ultrafast optical processor via combining a low-loss dispersive device with an electro-optic time lens on lithium-niobate-based chips. We show the ability to Fourier transform and magnify sub-picosecond temporal waveforms by > 800x.
Ultra-compact optical neural network chip
Authors: Liu Wencan , Fu Tingzhao , Huang Yuyao , Sun Run , Yang Sigang , Chen Hongwei
Published: September 2024

Two diffractive optical neural network chips featuring an integration level of over 60,000 neurons/mm2 are fabricated, experimentally yielding accuracies of 90.0% and 93.3% on the Iris plants dataset, respectively.
Integrated Coherent Photonic Crossbar Arrays for Efficient Optical Computing
Authors: Kari Sadra Rahimi , Hastings Allison , Nobile Nicholas A. , Pantin Dominique , Shah Vivswan , Youngblood Nathan
Published: September 2024

We present a scalable approach to optical computing using coherent crossbar arrays for processing temporally multiplexed signals. Our design enables scalable matrix-matrix operations, and correlation detection, enabling efficient on-chip optical computing for diverse AI applications.
Sidewall poled lithium niobate ridge waveguides for efficient UV generation
Authors: Franken C.A.A. , Ghosh S.S. , Rodrigues C.C. , Xin C.J. , Powell K. , Yang J. , Lu S. , Sinclair N. , Boller K.-J. , Lončar M.
Published: September 2024

We demonstrate a novel process enabling poling of the entire ridge in etched thin-film lithium niobate waveguides for upconversion from visible to UV. We achieve a peak on-chip UV power of 13.7 ± 3.9 µW.
High Efficiency Plasma Gratings Generated by Laser-Driven Avalanche Ionization
Authors: Waczynski S. , Zingale A. , Edwards M. R. , Michel P. , Milchberg H.M.
Published: September 2024

We demonstrate high-efficiency diffraction of intense λ=3.9 um laser pulses from plasma gratings generated by avalanche ionization of atomic clusters driven by a pair of intersecting 1.064 nm pulses.
Tailored Beam-Forming for Atomic Systems with Integrated Optics
Authors: Beck Gillenhaal J. , Mehta Karan K. , Home Jonathan P.
Published: September 2024

We demonstrate micron-scale focusing of fundamental and higher-order modes, including Laguerre-Gaussian “vortex” beams, from waveguide-to-free-space grating outcouplers at ultraviolet and visible wavelengths.
Non-Hermitian Non-Blocking Switching on a Silicon Integrated Photonic Chip
Authors: Feng Xilin , Wu Tianwei , Gao Zihe , Zhao Haoqi , Zhang Yichi , Wu Shuang , Ge Li , Feng Liang
Published: September 2024

Applying parity-time (PT) symmetry, we demonstrate a large-scale non-blocking optical switch array on a III–V/Si integrated photonic chip. Light is routed between the vertically coupled waveguides by gain/loss control of the III–V layer.
Deep Neural Network Enhanced Chip-on-board Hybrid-Packaged Photonic-Electrical Silicon Transceiver for High-speed Optical Interconnects
Authors: Qin Jun , Yang Qipeng , Han Changhao , Zhou Yan , Zhang Yunhao , Wu Yichen , Sun Yu , Lu Junde , Liu Siming , Li Yueqin , Sun Jian , Min Miao , Hu Weiwei , He Zhixue , Wang Lei , Yu Shaohua , Shu Haowen , Wang Xingjun
Published: September 2024

We explore implementing a multilevel deep neural network to enhance the performance of a 4-channel photonic-electrical hybrid-packaged silicon transceiver. Stable transmission and reception of 150 Gbps/λ PAM4 signals are achieved, which shows the potential for beyond-400G optical interconnects.
Nonlinear Silicon Photonic Passive Device for Edge Computing
Authors: Nakai Makoto , Takai Isamu
Published: September 2024

A silicon photonic passive device which performs nonlinear optical phase-to-amplitude signal conversion is proposed for edge computing applications. Classification of Iris and Wine datasets are demonstrated with accuracy of 100% and 97.75%, respectively.
L Band Thermo-Optically Tuned Multi-Channel Interference Widely Tunable Laser
Authors: Chen Zifeng , Lou Jiajun , Chen Quanan , Jiang Chun , Xia Juan , Lu Qiaoyin , Guo Weihua
Published: September 2024

A L-band multi-channel interference widely tunable laser was demonstrated for the first time. The laser exhibited excellent performances with tuning range > 50nm, SMSR > 46dB, output power > 18.8dBm, and linewidth < 100kHz.
Widely tunable, integrated blue diode laser using the Si3N4 platform
Authors: Franken C.A.A. , Winkler L.V. , do Nascimento A.R. , van Rees A. , Dekker R. , Hoekman M. , Schrinner P. P. J. , van Kerkhof J. , van der Slot P.J.M. , Boller K.-J.
Published: September 2024

We present the first hybrid integrated, extended cavity diode laser (ECDL) in the blue wavelength range. Integrating a CMOS-compatible silicon nitride (Si3N4) feedback circuit with a gallium nitride amplifier, we obtain 8.5 nm wide tuning around 454 nm.
Optic-Electronic-Optic Interferometer on an Indium Phosphide Platform
Authors: Mahmud Md Salek , Matalla Patrick , Dittmer Joel , Schindler Alexander , Runge Patrick , Koos Christian , Randel Sebastian
Published: September 2024

We present an Indium-Phosphide-based optic-electronic-optic (OEO) interferometer module and demonstrate interferometric optical add/drop multiplexing of optical QPSK signals with endless active phase stabilization.
Dynamic Demultiplexing of Low-Loss Spatial Modes in Strong Turbulence Using Reconfigurable Photonics
Authors: Daly Ultan J. , Boldin Aleksandr , Skvarenina Lubomir , Milanizadeh Maziyar , Melloni Andrea , Miller David A. B. , Sorel Marc , Morichetti Francesco , Lavery Martin P. J.
Published: September 2024

A reconfigurable-SOI-photonics platform capable of dynamically multiplexing and demultiplexing an orthogonal basis of low-loss optical-modes through a 1 km equivalent free-space channel is demonstrated. The channel-defined orthogonal basis is determined by utilizing singular value decomposition.
Long-Wave Infrared Dual-Comb Fiber Laser from 6.0 to 10.0 µm
Authors: Nakajima Yoshiaki , Kubota Kousuke , Uchiyama Ryusei , Yumoto Takumi , Takeshi Naoki , Shunemann Peter G. , Kokuyama Wataru
Published: September 2024

A high-coherence ultra-broadband bidirectional dual-comb fiber laser incorporating an orientation-patterned gallium phosphide crystal was developed for practical dual-comb spectroscopy in the long-wave infrared range. This system successfully demonstrated frequency comb generation spanning 6.0–10.0 µm.
Narrow-linewidth and tunable parametric oscillator
Authors: Lei Fuchuan , Sun Yi , Helgason Óskar B. , Ye Zhichao , Gao Yan , Karlsson Magnus , Andrekson Peter A , Torres-Company Victor
Published: September 2024

We present a tunable coherent oscillator based on parametric gain. It is realized through self-injection locking one comb line of a Kerr microcomb. Sub-Hertz intrinsic linewidth and 20nm tuning range are achieved.
Quasi phase matching from periodically poled 3R-stacked transition metal dichalcogenides
Authors: Trovatello Chiara , Ferrante Carino , Yang Birui , Dean Cory , Marini Andrea , Cerullo Giulio , Schuck P. James
Published: September 2024

Here we demonstrate broadband quasi phase matching in a periodically poled van der Waals semiconductor (3R-MoS2). This work opens up the new and unexplored field of phase-matched nonlinear optics with microscopic van der Waals crystals.
10Gb/s Entanglement Assisted Communication over Free-Space Optical Link with Phase Conjugation on Idler Photons and Improvements from Adaptive Optics
Authors: Nafria Vijay , Djordjevic Ivan B
Published: September 2024

We demonstrate record 10 Gb/s entanglement assisted communication over 1.5 km long turbulent free-space optical link in which optical phase-conjugation is performed on bright idler photons. To further improve the system performance adaptive optics is used.
Enhanced stimulated Brillouin scattering in tellurite covered silicon nitride waveguides via geometric and cladding engineering
Authors: Klaver Yvan , Morsche Randy te , Hashemi Batoul , Segat Frare Bruno L. , Ahmadi Pooya Torab , Taleghani Niloofar Majidian , Jonker Evan , Botter Roel A. , Ye Kaixuan , Mishra Akhileshwar , Braamhaar Redlef B.G. , Bradley Jonathan D.B. , Marpaung David
Published: September 2024

We measure Brillouin-scattering in geometrically and cladding engineered tellurite covered silicon nitride waveguide in which we report gain values of 80.9 m–1W–1 and 76.3 m–1W–1, a 150 times improvement over previous silicon nitride based waveguides.
Free Beam Propagation Multipass Cells for Post-Compression of High-Energy Laser Pulses
Authors: Savichev Vladimir , Tarkan Takil , Wang Yong , Rocca Jorge J. , Chvykov Vladimir
Published: September 2024

Post-compression of high energy laser pulses by folded free propagation MPC in atmospheric air is presented. Proof-of-principle experiments demonstrate the ability of this scheme to compress the 0.1J-level energy pulses up to 10 times scalable.
Power Scaling Potential of Diode-Pumped Cr:LiCAF Slab Lasers to >10 W Level in Continuous-Wave Operation
Authors: Erturk Zekican , Kilinc Muharrem , Okuyucu Serdar , Ozturk Yusuf , Demirbas Umit
Published: September 2024

We have experimentally and numerically investigated the power scaling capacity of diode edge-pumped Cr:LiCAF slab lasers employing low chromium doped samples and showed their potential to exceed 10 W output power level in continuous-wave operation.
Self-Injection Locking to Mitigate the Impact of Chip-Scale Reflections in Hybrid-Integrated Quantum-Well Lasers
Authors: Esmaeeli Omid , Yu Shangxuan , Mitchell Matthew , Chrostowski Lukas , Shekhar Sudip
Published: September 2024

We investigate the dynamics of quantum-well DFB lasers when they are hybrid-integrated via a photonic wire bond to a silicon photonic integrated circuit (PIC). By controlling the phase and amplitude of self-injection, the PIC stabilizes the laser.
Linewidth Compression of a Widely Tunable Hybrid Laser Through High-Q Resonance Feedback
Authors: E Siyu , Li Xinhang , Guo Yuyao , Fan Yihao , Jin Minhui , Li Yu , Stroganov Anton , Lu Liangjun , Chen Jianping , Zhou Linjie
Published: September 2024

We present a III-V/Si3N4 widely tunable hybrid laser with an intrinsic linewidth of 50 Hz by using a resonance feedback from a high-Q ring resonator. The linewidth is reduced by approximately 24 fold.
High-power photonic-crystal surface-emitting lasers with 1-kHz-class intrinsic linewidths
Authors: Morita Ryohei , Inoue Takuya , Yoshida Masahiro , De Zoysa Menaka , Ishizaki Kenji , Noda Susumu
Published: September 2024

We report theoretical and experimental results on intrinsic spectral linewidths of 1-mm-diameter PCSELs under continuous-wave operation, and we demonstrate 1-kHz-class intrinsic spectral linewidths with 5-W-class output power.
Integrated Brillouin laser in 4-meter-coil resonator realizing 40 mW output power and 31 mHz fundamental linewidth
Authors: Liu Kaikai , Blumenthal Daniel J.
Published: September 2024

We report a Brillouin laser in a photonic integrated ultra-high-Q 4-meter-coil waveguide resonator realizing 40 mW output power and 31 mHz fundamental linewidth.
Sawfish photonic crystal cavities with resonances at NV and SnV transition frequencies
Authors: Stucki Marco E. , Pregnolato Tommaso , Bopp Julian M. , v. d. Hoeven Maarten H. , Gokhale Alok , Krüger Olaf , Schröder Tim
Published: September 2024

We present the fabrication and characterization of “Sawfish” cavities in diamond, a new design of resonant photonic nanostructures to increase the emission rate of color centers into the zero-phonon-line, a requirement for efficient quantum communication.
Digital optical phase and amplitude matrix multiplication processor for neural networks
Authors: Meng Xiansong , Kim Kwangwoong , Dong Po , Kong Deming , Hu Hao
Published: September 2024

We propose a high-precision digital optical matrix multiplier utilizing phase and amplitude for neural networks. Results show error-free performance with 16-bit precision in high-definition image processing and no accuracy loss in handwritten digit recognition task.
Characterization of O-band Bismuth-doped Fiber Amplifier Using Swept Wavelength Interferometer
Authors: Huang Yetian , Chen Haoshuo , Huang Hanzi , Wang Weiqi , Fontaine Nicolas K. , Iannone Pat , Dallachiesa Lauren , Guo Cheng , Mazur Mikael , Ryf Roland , Song Yingxiong , Wen Jianxiang , Wang Tingyun
Published: September 2024

We first characterize the spatially and spectrally resolved gain profiles of an O-band BDFA via Rayleigh backscattering measured by a coherent swept wavelength interferometer, with a small signal gain reaching 35 dB at 1320 nm.
Integration of scandium aluminum nitride with silicon nitride for enhanced nonlinear optics
Authors: Liu Jiangnan , Liu Shuai , Wang Ding , Zhang Zheshen , Mi Zetian
Published: September 2024

We report on the integration of the second-order nonlinear media ScAlN with the low-loss Si3N4 in a microring resonator platform for enhanced nonlinear optics interaction.
Demonstration of Tunable Optical Matrix Convolution of a 10-Gbaud QPSK 2-D Image with a Kernel Using Wave Mixing
Authors: Minoofar Amir , Alhaddad Abdulrahman , Ko Wing , Zhou Huibin , Karapetyan Narek , Jiang Zile , Almaiman Ahmed , Ramakrishnan Muralekrishnan , Annavaram Murali , Habif Jonathan L. , Tur Moshe , Willner Alan E.
Published: September 2024

We experimentally demonstrate reconfigurable matrix convolution of a QPSK-encoded input image at 3/5/10-Gbaud rates. The kernel values are applied by adjusting the relative phase and amplitude of the pumps, which coherently mix with the signals using nonlinear wave mixing.
An Optical Neural Network Based on Nanophotonic Optical Parametric Oscillators
Authors: Parto Midya , Li Gordon H.Y. , Sekine Ryoto , Gray Robert M. , Ledezma Luis L. , Williams James , Marandi Alireza
Published: September 2024

We experimentally demonstrate a recurrent optical neural network based on a nanophotonic optical parametric oscillator fabricated on thin-film lithium niobate. Our demonstration paves the way for realizing optical neural networks exhibiting ultra-low la-tencies.
Multimode fiber amplifier modelling for wavefront shaping applications
Authors: Smith Darcy L. , Henderson-Sapir Ori , Nguyen Linh V. , Warren-Smith Stephen C. , Ottaway David J.
Published: September 2024

Nonlinear effects in multimode fiber a mplifiers ca n be su ppressed using seed wavefront shaping. We present a fiber a mplifier mo del fo r investigating th e effects of multimode propagation and transverse spatial hole burning on fiber amplifier operation.
Low Loss ScAlN-on-Insulator Photonic Integrated Circuits
Authors: Yang Guangcanlan , Guo Yu , Tang Hong X.
Published: September 2024

ScAlN has recently emerged as a promising CMOS-compatible material for nonlinear photonics applications, but its exploitation has been limited by its growth on suitable substrates to allow efficient waveguiding. Here, we report a low loss ScAlN-on-insulator photonic circuit enabled by flip-chip bonding.
Continuous Tuning From Bright to Dark States in Coupled Photonic Resonators
Authors: Flatt Graydon J. K. , McNulty Karl J. , Wang Oliver L. , Lipson Michal
Published: September 2024

We show continuous tuning into an all-optical dark state by modifying coherent interference between coupled photonic resonators. The quality factor is tuned from 50,000 in the bright state to 1.4 million in the dark state.
Self-assembled silicon photonic cavities with atomic-scale confinement
Authors: Babar Ali Nawaz , Weis Thor August Schimmell , Tsoukalas Konstantinos , Kadkhodazadeh Shima , Arregui Guillermo , Lahijani Babak Vosoughi , Stobbe Søren
Published: September 2024

We realize nanocavities that confine light in silicon with atomic-scale gaps and aspect ratios exceeding 100. The cavities are self-assembled and self-aligned to a photonic circuit, enabled by merging conventional semiconductor technology with bottom-up nanotechnology.
Plasma Microcavities
Authors: Bathish Baheej , Gad Raanan , Cheng Fan , Karlsson Kristoffer , Madugani Ramgopal , Douvidzon Mark , Chormaic Síle Nic , Carmon Tal
Published: September 2024

We demonstrate, for the first time, an optical microresonator with plasma inside. This plasma cavity might impact new types of plasma-based optical interconnects and electrically pumped ultracoherent-microlasers.