bluuebunny/crossref_metadata_2025 huggingface dataset:
Ion-based high-order harmonic generation for 1.6-keV X-ray driven by wavelength 405 nm pulse
Authors: Liu Yao-Li , Wang Jyhpyng , Chu Hsu-Hsin
Published: July 2023

A scheme for ion-based HHG of 1.6-keV X-ray based on the transverse selective-zoning method of quasi-phase-matching was proposed. The calculated conversion efficiency reached about 14% of the perfect phase-matching condition.
Deploying Machine Learning in Distributed Sensing to Increase Resilience of Fiber Optic Infrastructure
Authors: Munster Petr , Tomasov Adrian , Dejdar Petr , Horvath Tomas
Published: July 2023

We report a novel approach to the security of fiber optic infrastructures utilizing state of polarization analyzes or Mach-Zehnder interferometry and using supervised or unsupervised machine-learning models for unauthorized cable manipulation detection.
Spin Momentum Locking Induced Dynamic Circular Dichroism in Extraordinary Optical Transmission
Authors: Moroshkin Peter , Xu Jimmy
Published: July 2023

A dynamic circular dichroism is observed in the extraordinary optical transmission of a symmetric nanohole array. It is attributed to extrinsic chirality resulting from the spin-momentum locking between surface plasmon polaritons and the incident light.
Ultrahigh-resolution fiber-optic sensing system with an ultra-simple system and broadband light
Authors: Liu Shuting , Liu Qingwen , Zhao Shuangxiang , Jiang Shoulin , Jin Wei , He Zuyuan
Published: July 2023

An ultra-simple fiber-optic sensing system is proposed. The resolution reached 99.6 fε/√Hz at 1kHz with an enhanced Sagnac interferometer, which is the highest resolution level of the white light system to our best knowledge.
Integration of Colloidal PbS Quantum Dots with Silicon Nanophotonics
Authors: Rarick Hannah , Choi Minho , Saxena Abhi , Manna Arnab , Sharp David , Nguyen Hao , Cossairt Brandi , Majumdar Arka
Published: July 2023

Silicon nanophotonics lacks light sources needed for on-chip applications like ultra-low-power lasing. In this work, we demonstrate integration and room temperature operation of PbS colloidal quantum dots coupled to silicon nanophotonic devices.
Monolithic Integration of Lithium Niobate and Chalcogenide Phase-Change Material for Neuromorphic Computing
Authors: Bente Ivonne , Bankwitz Rasmus , Brückerhoff-Plückelmann Frank , Jo Seongmin , Lenzini Francesco , Pernice Wolfram
Published: July 2023

We show the integration of chalcogenide phase-change material together with electro-optic modulators in the Lithium-Niobate-On-Insulator platform enabling on-chip calculation and non-volatile memory functionality for neuromorphic computing.
Thermal tuning of Brillouin Lasing in Silica Microspheres
Authors: Magalhaes Leticia S. , Alegre Thiago Pedro Mayer , Wiederhecker Gustavo S.
Published: July 2023

We experimentally demonstrate thermal control of Brillouin phase-matching, bypassing thermal drifts of resonances, we were able to identify the resonances involved.
Precision Optical Weed Removal Evaluation with Laser
Authors: Zhang Hongbo , Zhong Jia-Xing , Zhou WenJing
Published: July 2023

We propose a novel optical weed removal evaluation method using laser. The Cascade RCNN deep learning method achieves 95% of localization accuracy and 80% of classification accuracy for the effectiveness of optical weed removal.
Silicon-Nanowire-Based Polarization Diversified CWDM Optical DeMUX Based on Delayed Interferometric Filters
Authors: Jeong Seok-Hwan , Park Heuk , Lee Joon Ki
Published: July 2023

We demonstrate a Si-wire polarization-diversified Coarse WDM DeMUX for high-density optical interconnects. The device consists of a hybrid mode conversion-type polarization splitter rotator and delayed interferometric DeMUX. The fabricated device exhibited low loss and polarization-dependent loss of <1.0 dB, suppressing crosstalk (<−20 dB).
High Extinction Ratio Integrated Reconfigurable Distributed Bragg-Reflector from Lithium-Niobate-on-Insulator for Precise Pulse Shaping at Strontium Spectral Lines
Authors: Bankwitz Rasmus , Lenzini Francesco , Pernice Wolfram
Published: July 2023

We design and demonstrate tunable distributed Bragg reflectors on thin film Lithium-Niobate-on-Insulator, at strontium spectral lines. A Mach-Zehnder-Interferometer geometry allows electrically modulated pulse shaping with high extinction ratios of 30 dB.
Complete Optical Pulse Metrology by Phase-Preserving Nonlinear Autocorrelation
Authors: Gliserin Alexander , Chew Soo Hoon , Kim Seungchul , Kim Dong Eon
Published: July 2023

We present a novel nonlinear interferometric autocorrelation technique with unbalanced intensity, which preserves spectral phase information in the autocorrelation signal and enables the complete characterization of ultrafast optical fields without requiring any spectrally resolved measurements.
Integrated SiN/InSe Waveguide Photodetector for O-band Applications
Authors: Tamalampudi Srinivasa Reddy , Villegas Juan Esteban , Paredes Bruna , Dushaq Ghada , Rasras Mahmoud S.
Published: July 2023

A waveguide-integrated InSe photodetector is demonstrated for telecom O-band applications. The transmission losses in the waveguide were measured before and after the integration. The measured photo responsivity and RF bandwidth are 0.03 mA/W and 5 MHZ, respectively.
Coupling Effects in Transition Metal Dichalcogenide Homojunctions with Linear and Nonlinear Optical Spectroscopies
Authors: Muñoz Juan Arias , Kaaripuro Henri , Zhang Yi , Das Susobhan , Liapis Andreas C. , Sun Zhipei
Published: July 2023

We investigate artificially stacked few-layer MoS2 homojunctions with linear and nonlinear optical spectroscopies, observing various coupling effects in the layers.
Triple-Etch Grating for Near Perfect Coupling at Normal Incidence
Authors: Valdez Carson G. , Pai Sunil , Broaddus Payton , Solgaard Olav
Published: July 2023

We numerically demonstrate a grating coupler design with a peak efficiency of 96%(−0.18dB) at normal incidence on standard Silicon-On-Insulator. This design takes into account fabrication constraints suitable for E-beam lithography and can be realized through three consequtive etch steps.
Design of a Digital PID with High Bandwidth for Locking DFB Laser to an Absorption line of CH4
Authors: Tatenguem Hervé , Aßmann Christian , Schmidtmann Sebastian , Hoppe Morten , Honsberg Martin , Sacher Joachim
Published: July 2023

Analog PID controllers, although offering higher bandwidth than digital PIDs, generally suffer from a lack of features such as variable parameter tuning. We report on enhancing bandwidth of digital PID and their application in methane absorption line stability.
Compact Adiabatic Power Splitters with Polynomial Taper Profile Optimization
Authors: Ozcan Can , Mojahedi Mo , Aitchison J. Stewart
Published: July 2023

We experimentally demonstrate profile-optimized adiabatic Y-branch power splitters with losses of 0.16 dB (TE) and 0.17 dB (TM) at 1,550 nm for 14 μm long devices with balanced power splitting between 1,500 and 1,600 nm.
Enhanced Two-Photon Absorption Effect of a Fano Resonant Silicon Metasurface
Authors: Xie Hailun , Gui Lili , Liu Yiwen , Lin Fengbin , Xu Kun
Published: July 2023

We demonstrate that two-photon absorption effect of a silicon metasurface can be boosted, with β=173.2 cm/MW and Isat=93 MW/cm2, due to local-field enhancement by tailored high-Q Fano resonance.
Field Effect Modulation using Transparent Conductive Oxides and Multilayer Transition Metal Dichalcogenides
Authors: Shelly Nishtha , Roy Evan , Murray Chris , McCloskey David
Published: July 2023

External optical modulators with surface normal geometry using transition metal dichalcogenides and transparent conductive oxides are being developed in this work based on exciton physics and charge accumulation property respectively upon application of electrical bias.
Independent phase and amplitude control of second harmonic generation from electrically tunable nonlinear polaritonic metasurfaces
Authors: Yu Jaeyeon , Boehm Gerhard , Belkin Mikhail A. , Lee Jongwon
Published: July 2023

We present electrically tunable nonlinear polaritonic metasurfaces for second harmonic generation with independently controllable effective nonlinear susceptibility in the range of 0 to 160 nm/V in magnitude and 0 to 2π in phase, respectively.
Influence of Excitonic Correlations on the High Harmonic Generation in Monolayer TMDCs
Authors: Hader Jörg , Neuhaus Josefine , Moloney Jerome V. , Koch Stephan W.
Published: July 2023

Fully microscopic many-body models are used to show that excitonic correlations dramatically enhance the high harmonic generation in monolayer MoS2. Especially near the bandgap the enhancement can be two orders of magnitude or more.
Label-Free Near Infrared Plasmonic Sensors for High-Resolution Biomolecular Detection
Authors: Sze Patrick Hoi-Kuen , Lee Pandora Wing-Yin , Zhu Shaodi , Salas-Montiel Rafael , Jaffiol Rodolphe , Ho Ho-Pui , Ho Yi-Ping , Zeng Shuwen
Published: July 2023

We demonstrated a plasmonic interferometry-free biosensor with a near-infrared excitation wavelength of 988 nm. The Q factor has been improved by 1.75 times compared to 633 nm for 1 nM BSA molecule detection.
Topological Polarization Singularities for Full Polarization Control of High-Q Modes
Authors: Doiron Chloe F. , Brener Igal , Cerjan Alexander
Published: July 2023

We present a design paradigm based on topological charge splitting for creating nearly-degenerate, high-quality factor (Q) states with arbitrary polarization states in all-dielectric metasurfaces.
Ultrafast Decay of Polar Optical Vibrations in Cubic Perovskites
Authors: Senarathna Dinusha M. , Neupane Chandra P , Sylvester Jeremy , Singhapurage Helani A. S. , Ganikhanov Feruz
Published: July 2023

Decays of coherent phonons have been traced with 120 fs resolution in technologically important perovskites of BaSnO
3
and SrTiO
3
. The phonon decay rates of 1.23-1.82 ps
-1
are explained within the framework of anharmonic potential theory.
Optical waveguide generated in air through femtosecond filamentation of optical vortices
Authors: Fu Silin , Mahieu Benoit , Mysyrowicz André , Houard Aurélien
Published: July 2023

The evolution of filament array produces by optical vortices in air is studied. Vortex beams generate filaments organized in a cylinder that evolve into a tubular neutral gas column similar to a step index fiber.
Observation of the thermal Rashba effect: custom polarization sorting in thermal emission
Authors: Overvig Adam C. , Nolen J. Ryan , Alù Andrea
Published: July 2023

We experimentally demonstrate symmetry-driven metasurfaces thermally emitting to custom orthogonal polarization states, generalizing the phenomenon of spin-split dispersion to arbitrary polarizations.
High Brightness Broadband Photon-Pairs at 2 μm in Lithium Niobate Nanophotonics
Authors: Williams James , Nehra Rajveer , Sendonaris Elina , Ledezma Luis , Gray Robert M. , Sekine Ryoto , Marandi Alireza
Published: July 2023

We present a photon-pair source at 2 µm with more than 45 THz bandwidth and a generation rate of 122 GHz/mW in lithium niobate nanophotonics, opening up many opportunities in mid-infrared quantum information processing.
Optimizing the Coupling of Light to Plasmons through Engineered Dipolar Scatterers
Authors: Abdullah Saad , Krpensky Jan , Dias Eduardo J. C. , Mkhitaryan Vahagn , Javier García de Abajo F.
Published: July 2023

We experimentally demonstrate high coupling of light to surface polaritons by means of an optimized scatterer placed at a suitable distance from a polariton-supporting surface. Specifically, we consider poorly-absorbing gold disks acting as nearly-perfect resonant scatterers, which we separate from a gold film by means of a dielectric silica spacer. This configuration leads to resonant coupling between externally incident light and plasmon polaritons in the film with associated cross sections that approach and surpass the fundamental limit ~ λ2 imposed by the light wavelength λ. Our method introduces a disruptive, efficient way to solve the in/out-coupling problem in nanophotonics.
Strong Light-Matter Interactions for Intersubband Transition in a Flexible Single Quantum Well Structure
Authors: Paul Puspita , Addamane Sadhvikas J. , Liu Peter Q.
Published: July 2023

We demonstrate ultrastrong coupling between intersubband transitions in single semiconductor quantum well and resonant modes of photonic nanocavities implemented on both rigid and flexible substrates. The Rabi splitting reaches 27% of the intersubband transition frequency.
Integrated photonics demonstration of zero-curvature eigenfunctions
Authors: Rodrigues Janderson R. , Dave Utsav D. , Mohanty Aseema , Ji Xingchen , Datta Ipshita , Chaitanya Shriddha , Bhatt Gaurang , Gutierrez-Jauregui Ricardo , Almeida Vilson R. , Asenjo-Garcia Ana , Lipson Michal
Published: July 2023

We apply the homomorphism between the Schrödinger and Helmholtz-Maxwell wave equations to experimentally demonstrate an integrated photonic analogue of the zero-curvature eigenfunctions predicted in quantum mechanics.
Ultra-bright non-classical light sources based on single InAs/GaAs quantum dot embedded in a hybrid plasmonic nanopillar cavity
Authors: Chellu Abhiroop , Bej Subhajit , Hulkkonen Hanna , Hytönen Roosa , Rekola Heikki , Uusitalo Topi , Kahle Hermann , Karvinen Petri , Niemi Tapio , Guina Mircea , Hakkarainen Teemu
Published: July 2023

We demonstrate a Purcell-enhanced single photon source based on individual InAs/GaAs quantum dots embedded in a hybrid plasmonic-GaAs nanopillar cavity.
A Chiral One-dimensional Atom Using a Quantum Dot in an Open Microcavity
Authors: Javadi A. , Antoniadis N. O. , Tomm N. , Jakubczyk T. , Schott R. , Valentin S. R. , Wieck A. D. , Ludwig A. , Warburton R. J.
Published: July 2023

We realize an optical equivalent of a diode that simultaneously shows nonlinear and non-reciprocal behavior. Using a quantum dot in a microcavity, we show that photon transmission is one order of magnitude larger in the forward direction compared to the backward direction. The system shows a strong nonlinearity with an onset at 100pW.
Quick Quantum Steering: Overcoming Loss and Noise with Qudits
Authors: Srivastav Vatshal , Valencia Natalia Herrera , McCutcheon Will , Leedumrongwatthanakun Saroch , Designolle Sébastien , Uola Roope , Brunner Nicolas , Malik Mehul
Published: July 2023

We formulate and demonstrate a test of quantum steering under extreme conditions of loss and noise, free of the fair-sampling loophole, with a dramatic reduction in measurement time counter-intuitively achieved through the use of qudits.
Metropolitan Single-Photon Distribution at 1550 nm for Random Number Generation
Authors: Gyger Samuel , Zeuner Katharina D. , Lettner Thomas , Bensoussan Sandra , Carlnäs Martin , Ekemar Liselott , Schweickert Lucas , Hedlund Carl Reuterskiöld , Hammar Mattias , Nilsson Tigge , Almlöf Jonas , Steinhauer Stephan , Llosera Gemma Vall , Zwiller Val
Published: July 2023

Quantum communication networks are used for QKD and metrological applications. We present research connecting two nodes ≈ 20 kilometers apart over the municipal fiber network using semiconductor quantum dots emitting at 1550 nm.
Wavelength-Multiplexed Multi-User Quantum Network Based on High-Dimensional Time-bin Encoding
Authors: Sarihan Murat Can , Cheng Xiang , Chang Kai-Chi , Wong Chee Wei
Published: July 2023

We have developed a multi-user QKD network using wavelength multiplexing and high-dimensional arrival-time encoding. We have demonstrated an order of magnitude key rate improvement against recent implementations with >1 bits/photon efficiency.
Effects of imbalanced modulation in continuous-variable quantum key distribution
Authors: Nguyen Huy Q. , Hajomer Adnan A. E. , Derkach Ivan , Jain Nitin , Andersen Ulrik L. , Gehring Tobias
Published: July 2023

We experimentally investigate the impact of non-optimal state preparation on a Gaussian-modulated coherent state CVQKD system. We show that modulation with imbalanced strength in the amplitude and phase quadratures reduces the optimal key rate over certain distance.
Nonlinear Light Evolution in a Photonic Thouless Pump
Authors: Kirsch M. S. , Kartashov Y. V. , Konotop V. , Szameit A. , Heinrich M.
Published: July 2023

We experimentally demonstrate a nonlinear photonic Thouless pump and show that the Kerr effect in discrete waveguide arrangements enables the topological transport of excitations initially placed in the topologically trivial band for sufficient excitation powers.
Polarization-Induced Topological Edge and Corner States in Chern Photonic Crystals
Authors: Vaidya Sachin , Rechtsman Mikael C. , Benalcazar Wladimir A.
Published: July 2023

Polarization is not a well-defined quantity in Chern insulators. Using gyromagnetic photonic crystals, we show that a notion of relative-polarization can be well-defined in Chern insulators leading to topological edge and corner states.
Narrow-beam Single-photon Source Based on a hBN Nanocrystal in a 3D-printed Ultralow-fluorescence Microlens
Authors: Preuß Johann A. , Gehring Helge , Schmidt Robert , Jin Lin , Wendland Daniel , Kern Johannes , Pernice Wolfram H.P. , de Vasconcellos Steffen Michaelis , Bratschitsch Rudolf
Published: July 2023

We present a room-temperature single-photon source consisting of an hBN nanocrystal emitter inside an ultralow-fluorescence 3D-printed elliptical polymer microlens. The single-photon emission is highly directional, which renders objective lenses with high numerical aperture obsolete.
Nonlinear quantum logic with colliding graphene plasmons
Authors: Calajó Giuseppe , Jenke Philipp K. , Rozema Lee A. , Walther Philip , Chang Darrick E. , Cox Joel D.
Published: July 2023

We present a theoretical study of a quantum logic gate based on two colliding plasmons in a single graphene nanoribbon with an intrinsic optical nonlinearity. The gate performance is only limited by the plasmon lifetime.
Topological guidance of vortices by disclination
Authors: Hu Zhichan , Bongiovanni Domenico , Wang Ziteng , Wang Xiangdong , Song Limin , Song Daohong , Hu Yi , Morandotti Roberto , Buljan Hrvoje , Chen Zhigang
Published: July 2023

We report the first experimental realization of topological guidance of optical vortices by disclination in a photonic topological crystalline insulator. Both singly- and doubly-charged vortex beams remain robust during propagation, manifesting protected zero-energy modes.
Transfer-Printed Single-Photon Detectors on Arbitrary Photonic Substrates
Authors: Errando-Herranz Carlos , Gyger Samuel , Tao Max , Colangelo Marco , Christen Ian , Larocque Hugo , Sattari Hamed , Choong Gregory , Petremand Yves , Prieto Ivan , Yu Yang , Steinhauer Stephan , Ghadimi Amir H. , Zwiller Val , Englund Dirk
Published: July 2023

We demonstrate the integration of superconducting single-photon detectors onto arbitrary photonic substrates via transfer printing. Using this method, we show single-photon detection in a lithium niobate on insulator photonic circuit.
Fractal superconducting nanowire single-photon detector at 1540 nm with 91% system detection efficiency
Authors: Hao Zifan , Zou Kai , Feng Yifan , Meng Yun , Hu Nan , Steinhauer Stephan , Gyger Samuel , Zwiller Val , Hu Xiaolong
Published: July 2023

We demonstrate a fiber-coupled fractals uperconducting nanowire single-photon detector working in dual bands, with 91% system detection efficiency (SDE) at the wavelength of 1540 nm and with 61% SDE at 520 nm.
Generating hypergraph states on a silicon-photonic chip
Authors: Huang Jieshan , Li Xudong , Chen Xiaojiong , Gong Qihuang , Wang Jianwei
Published: July 2023

We experimentally create complete classes of twenty-nine four-qubit hypergraph states on a programmable silicon-photonic chip, and implement measurement-based protocols on hypergraph states, which provide an alternative resource for quantum information processing.
Benchmarking Machine Learning-Derived W State Witnesses on NISQ Hardware
Authors: Greenwood Alexander C. B. , Zhu Eric Y. , Wu Larry T. H. , Kirby Brian T. , Qian Li
Published: July 2023

We find that our W state witnesses derived with a Support Vector Machine have comparable noise tolerance while requiring fewer measurements than the fidelity method; this result is physically verified on an IBM Quantum Processor.
Guiding light at Lagrange points
Authors: Luo Haokun , Wei Yunxuan , Wu Fan O. , Christodoulides Demetrios N. , Khajavikhan Mercedeh
Published: July 2023

By exploiting the exotic properties of Lagrange points, we here demonstrate an altogether new approach for guiding light. Unlike other methodologies, here light can be trapped even in defocusing bulk environments.
Bosonic Interference in a Three-Level System
Authors: Oliver Richard , Blau Miri , Gaeta Alexander L.
Published: July 2023

We demonstrate two-photon interference of three frequency modes via three-pump Bragg-scattering four-wave mixing in analogy to a three-level system. Correlated photon input pairs display distinct behavior from that of coherent-state input fields.
Realizing Tight-binding Hamiltonians using Site-controlled Coupled Cavity Arrays
Authors: Saxena Abhi , Manna Arnab , Trivedi Rahul , Majumdar Arka
Published: July 2023

Using a cavity array made up of high Q nanocavities equipped with specially designed thermo-optic island heaters for independent control, we demonstrate a programmable device implementing tight-binding Hamiltonians with access to the full eigen-energy spectrum.
Two-photon Interference at a Single Input Port of a Beam-Splitter
Authors: Palacios-Avila Pablo , Pennacchietti Matteo , Cunard Brady , Dalacu Dan , Poole Philip J. , Sajeed Shihan , Kuntz Katanya , Reimer Michael , Jennewein Thomas
Published: July 2023

We present experimental evidence for two-photon interference (TPI) in a variation of the Hong-Ou-Mandel experiment in which photons with different polarizations enter only one of the beam-splitter input ports.
Optimal quantum encoding of an oscillator into two oscillators
Authors: Wu Jing , Brady Anthony J. , Zhuang Quntao
Published: July 2023

We solve the problem of finding the optimal two-mode oscillator-to-oscillator code for continuous-variable error correction—demonstrating that the two-mode-squeezing code with a hexagonal Gottesman-Kitaev-Preskill state is best.
Spontaneous symmetry breaking of Kerr solitons in Fabry Perot Resonators
Authors: Hill Lewis , Hirmer Eva-Maria , Campbell Graeme , Ghosh Alekhya , Bi Toby , Oppo Gian-Luca , Del'Haye Pascal
Published: July 2023

Symmetry breaking of vector temporal cavity solitons in Fabry-Perot resonators is presented. This work can improve the generation of frequency combs through its control of the number of cavity solitons in a round trip.
Exploiting 2D MXene nanosheets for ultrasensitive plasmonic biosensing
Authors: Wang Yuye , Hu Yurui , Zeng Qi , Chen Xi , Zhang Yi , Zeng Shuwen , Yang Hui
Published: July 2023

We revealed the potential of exploiting 2D MXene nanosheets as plasmonic substrates for enhanced biosensing. The detection of BSA molecules based on MXene-on-Au substrate was successfully demonstrated with a detection limit down to 10 fM.
Generation of frequency-bin-encoded ququarts in a programmable silicon photonic chip
Authors: Borghi Massimo , Tagliavacche Noemi , Sabattoli Federico Andrea , Dirani Houssein El , Youssef Laurene , Petit-Etienne Camille , Pargon Erwine , Sciancalepore Corrado , Sipe J.E. , Liscidini Marco , Galli Matteo , Bajoni Daniele
Published: July 2023

We present a programmable silicon photonic device for the generation of frequency bin entangled qudits, in which bin spacing, qudit dimension, and bipartite quantum state can be directly reconfigured on a chip.
Spatiotemporal Electron Microscopy of Phonon Polaritons in MoO3
Authors: Nahari Harel , Kurman Yaniv , Dahan Raphael , Adiv Yuval , Yannai Michael , Shenfux Hanan Herzig , Koppens Frank H.L. , Kaminer Ido
Published: July 2023

We present the first observation of phonon-polaritons in a planar-anisotropic 2D material using ultrafast transmission electron microscopy, revealing their spatiotemporal dynamics.
Ultrafast Coherent Excitation of an Ytterbium Ion with Single Laser Pulses
Authors: Streed E. W. , Shimizu K. , Scarabel J.
Published: July 2023

We demonstrate coherent excitation of a 171Yb+ ion using a single near-resonant picosecond ultrafast pulses with maximum population transfer of 94(1)%. This is an important requirement for sub-microsecond fast quantum logic gate with trapped-ion qubits.
Toward Single Photon Detection using Nanophotonic Parametric Amplifiers
Authors: Sendonaris Elina , Nehra Rajveer , Williams James , Gray Robert , Ledezma Luis , Sekine Ryoto , Marandi Alireza
Published: July 2023

Ultra-intense parametric amplification can be used for amplifying single photons to macroscopic levels. We experimentally detected coherent states with
〈N〉=4.86 with 17% efficiency and 2.5% dark count probability.
Simple description of ultrafast single-photon wavepackets interacting with moving fronts
Authors: Babushkin Ihar , Bose Surajit , Rübeling Philip , Melchert Oliver , Demircan Ayhan , Kues Michael , Morgner Uwe
Published: July 2023

We consider photons experiencing reflection, tunneling or trapping by refractive index fronts moving at the speed of light. We show that evolution equations in such situations are determined uniquely via the quantum-classical correspondence principle.
Ultranarrow-Linewidth Stimulated Intermodal Forward Brillouin Scattering
Authors: Xu Wendao , Zerbib Maxime , Iyer Arjun , Beugnot Jean-Charles , Renninger William H.
Published: July 2023

We demonstrate strong (~ 300 W-1m-1 ) and ultranarrow linewidth (~100 kHz) stimulated intermodal forward Brillouin scattering in a homogeneous few-mode optical fiber taper. This unique combination of parameters can enable record performance Brillouin-based microwave-photonic devices.
On-chip Ytterbium based Microwave to Optical Transducer
Authors: Fukumori Rikuto , Xie Tian , Faraon Andrei
Published: July 2023

Quantum transduction between microwave and optical photons is important for connecting remote superconducting quantum systems. We present preliminary microwave- to-optics transduction measurements using on-chip Yb3+:YVO4 with an integrated microwave resonator and optical waveguide.
Reversible Tuning of Nanowire Quantum Dot to Cesium D1 line
Authors: Maruf Rubayet Al , Venuturumilli Sreesh , Bharadwaj Divya , Anderson Paul , Qiu Jiawei , Zeeshan Mohd , Semnani Behrooz , Poole Philip , Dalacu Dan , Reimer Michael , Bajcsy Michal
Published: July 2023

We report local reversible tuning of nanowire quantum dot emission to cesium D1 line (~ 894.6 nm) and demonstrate slow light and resonant absorption of single photons in hot cesium vapor.
High-efficiency fiber coupling from laser-written waveguides using partially overlapping multi-pass inscription
Authors: Ehrhardt Max , Heinrich Matthias , Szameit Alexander
Published: July 2023

We shape the mode field of femtosecond laser-written waveguides in fused silica via the partial overlap of multiple inscription passes. Judicious tuning of exposure parameters facilitates near-unity mode overlap and coupling to standard single-mode fibers.
Kerr beam cross-cleaning in multimode fiber
Authors: Mansuryan Tigran , Lobato Yago Aroza , Tonello Alessandro , Krupa Katarzyna , Fevrier Sébastien , Leventoux Yann , Mangini Fabio , Ferraro Mario , Zitelli Mario , Sun Yifan , Wabnitz Stefan , Couderc Vincent
Published: July 2023

We report a cross-cleaning process of a powerful fundamental beam on a weak speckle at the second harmonic. This opens a new way to improving the brightness of weak laser beams in multimode fibers.
Single extracellular vesicle trapping, and manipulation assisted by plasmonic mirror-enhanced optical anapole mode
Authors: Hong Chuchuan , Hong Ikjun , Ndukaife Justus C.
Published: July 2023

We experimentally demonstrate trapping and manipulation of single extracellular vesicle using optical anapole state for the first time. It provides a promising platform for single extracellular vesicle analysis with high throughput.
Rainbow dielectric metasurfaces for tunable resonant generation of high harmonics
Authors: Jangid Piyush , Richter Felix Ulrich , Tseng Ming Lun , Kivshar Yuri , Kruk Sergey , Altug Hatice
Published: July 2023

We design high-Q metasurfaces with resonant wavelengths in mid-IR varying continuously along the sample. We demonstrate tunable rainbow generation of high harmonics as we vary the pump wavelength and the coordinate along the metasurface.
Deterministic device integration of separate quantum dots for scalable on-chip photonics quantum circuits
Authors: Yang Yuhui , Li Shulun , Schall Johannes , von Helversen Martin , Palekar Chirag , Roche Léo , Liu Hanqing , Rodt Sven , Ni Haiqiao , Niu Zhichuan , Reitzenstein Stephan
Published: July 2023

We report on a prototype quantum photonic integrated circuit consisting of two quantum dots deterministically integrated into nanobeam cavities at the input ports of a 2x2 multimode interference beam-splitter featuring high single-photon purity and indistinguishability.
Quantum-level Storage of Telecom Light in a Fiber-Integrated Memory
Authors: Bonsma-Fisher Kent , Hnatovsky Cyril , England Duncan , Bustard Philip J. , Grobnic Dan , Mihailhov Stephen J. , Sussman Benjamin J.
Published: July 2023

We demonstrate the storage and retrieval of single-photon-level telecom pulses in a fiber cavity formed by fiber Bragg gratings at either end. We demonstrate storage beyond 1 μs, and show retrieved photons maintain a high fidelity with the input.
In Situ Control of Kerr Nonlinear Coefficient by Cascaded Pockels Effect in Micro-Ring Resonator
Authors: Cui Chaohan , Zhang Liang , Fan Linran
Published: July 2023

We report the in situ control of the integrated Kerr nonlinear coefficient through its interplay with the cascaded Pockels nonlinear process. The effective Kerr nonlinearity can be tuned over 10 dB without redesigning photonic structures.
Time reflection and refraction in synthetic frequency dimension
Authors: Long Olivia Y. , Wang Kai , Dutt Avik , Fan Shanhui
Published: July 2023

We demonstrate that time reflection and refraction can be observed in a two-band model centered around a non-zero reference energy. Our model can be physically implemented as a system of two coupled dynamically-modulated ring resonators.
Annihilation of k-gap Solitons in Photonic Time Crystals
Authors: Cohen Moshe-Ishay , Pan Yiming , Segal Ohad , Segev Mordechai
Published: July 2023

We study interaction between two k-gap solitons in Photonic-Time-Crystals. We show that they always annihilate each other, regardless of initial power, phase, and direction. The residuals of interaction strongly affect proceeding solitons as cascaded collision.
Spatiotemporal observation and manipulation of nonlinear optical waves in single-shot using a recirculating fiber loop
Authors: Copie François , Suret Pierre , Randoux Stéphane
Published: July 2023

We present experiments realized in a synchronously phase-modulated recirculating fiber loop demonstrating the possibility to manipulate the spatiotemporal dynamics of nonlinear waves. Temporal quadratic phase modulations are shown to either expulse or trap solitons.
From Static to Dynamic Modulation of Second Harmonic Generation from Plasmonic Hotspots
Authors: Meier Jessica , Zurak Luka , Locatelli Andrea , Feichtner Thorsten , Kullock René , Hecht Bert
Published: July 2023

We demonstrate modulation of second harmonic generation by systematically inducing field asymmetry in the gap of gold nanoantennas via controlled geometric symmetry breaking. The concept is extended to electrical tuning of the nonlinear signal.
Enhanced Inverse Faraday Effect in Nonmagnetic Plasmonic Monolayers of Nanodisks
Authors: González-Alcalde Alma K. , Ortiz Víctor H. , Shi Xinping , Feng Ji , Wilson Richard B. , Vuong Luat T.
Published: July 2023

With time-resolved measurements, we investigate the inverse Faraday effect of gold nanodisks in random monolayers. Order-of-magnitude enhancements are observed for 3.9% fill-factor samples (compared to gold film) which increases with proximity to the plasmonic resonance.
Photonic Space-Time Topological Edge States
Authors: Segal Ohad , Plotnik Yonatan , Lustig Eran , Cohen Moshe-Ishay , Dikopoltsev Alex , Segev Mordechai
Published: July 2023

We introduce topological edge states in photonic space-time crystals. We show that photonic space-time crystals support propagating edge states and find a unique edge state that grows exponentially in energy whilst following the spatio-temporal edge.
Photonic Time Quasi-Crystals
Authors: Nemirovsky-Levy Liat , Konforty Noa , Segal Ohad , Cohen Moshe-Ishay , Lubarov Mark , Plotnik Yonatan , Segev Mordechai
Published: July 2023

We study light propagation of electromagnetic waves in a medium with a homogeneous refractive index varying quasi-periodically in time. We study two types of time-varying quasi-crystals: Andrey Aubrey and Fibonacci sequence.
Bipartite Dirac solitons in vernier-coupled microresonators
Authors: Yuan Zhiquan , Gao Maodong , Yu Yan , Wang Heming , Jin Warren , Ji Qing-Xin , Feshali Avi , Paniccia Mario , Bowers John , Vahala Kerry
Published: July 2023

Femtosecond pulse pairs are formed in coupled-resonators featuring normal dispersion. The pairs collectively obey the optical Dirac equation and through their coherent interaction induce net round-trip anomalous dispersion. The asymmetrical Dirac comb spectrum is observed.
Ultralow Dissipation Mechanical Resonators for Cavity-Free Quantum Control
Authors: Engelsen Nils J. , Arabmoheghi Amirali , Bereyhi Mohammad J. , Beccari Alberto , Fedorov Sergey A. , Xia Yi , Huang Guanhao , Zicoschi Alessio , Kippenberg Tobias J.
Published: July 2023

We fabricate nanomechanical resonators with Q > 109 at room temperature and show efficient optical readout of their motion. With an improved interferometer, these devices can be cooled close to the ground state without a cavity.
Photon-counting detection of microwave signals via coherent transduction enabled by Rydberg atoms
Authors: Borówka Sebastian , Pylypenko Uliana , Mazelanik Mateusz , Parniak Michał
Published: July 2023

We present a room-temperature atomic system used as a microwave-to-optical transducer operating in the single-photon regime. Coherence of the phase-matched conversion and photon-counting detection of microwave blackbody radiation are demonstrated.
Kramers-Kronig relation in ultrafast XUV transient absorption spectroscopy
Authors: Leshchenko Vyacheslav , Hageman Stephen J. , Cariker Coleman , Smith Gregory , Camper Antoine , Agostini Pierre , Argenti Luca , DiMauro Louis F.
Published: July 2023

We study the validity of the Kramers-Kronig relation (KKR) in attosecond transient absorption spectroscopy, which is enabled by a new phase-resolved technique dubbed Complex Attosecond Transient-absorption Spectroscopy (CATS). Our results provide a solid basis for KKR application in a broad range of attosecond experiments.
Probing Vibrational Dephasing Dynamics in Crystalline Defects with Different Environments
Authors: Keat T.J. , Dale M.W. , Stavros V.G. , Newton M.E. , Lloyd-Hughes J.
Published: July 2023

Ultrafast infrared spectroscopy was used to unveil the rates at which different vibrational modes of atomic-scale defects in diamond interact with their environment. We adopted the N3VH0 defect as a model system, and studied perturbed free induction decay (PFID) and population decay features. The faster dephasing times of the fundamental stretch mode in comparison to the observed bend mode (first overtone) was a result of its more direct perturbation of the crystal lattice. We further demonstrate the versatility of ultrafast spectroscopy by investigating the energy level structure and dynamics of an unknown defect that is infrared active at 3237 cm−1.
Soliton Pair Dynamical Transition in Mode-locked Lasers
Authors: Sulimany Kfir , Tziperman Offek , Bromberg Yaron , Gat Omri
Published: July 2023

We report a dynamical transition between steady states of optical solitons in a mode-locked fiber laser. We model the transition theoretically using a Haus equation-based numerical simulation and a simplified analytical model.
Lorentz Reciprocity’s Constraints on Reflection
Authors: Guo Cheng , Fan Shanhui
Published: July 2023

We reveal Lorentz reciprocity’s constraints on reflection. We determine all attainable reflection coefficients of n-port scattering matrices with prescribed singular values, with and without assuming reciprocity. Their difference establishes the reciprocity constraints.
Inverse Design of High Efficiency Large Angle Polarization Insensitive Retroreflecting Metasurface for Magneto-Optical Traps
Authors: Heki Larry , Mohtashami Yahya , Schuller Jon A.
Published: July 2023

Metasurface retroreflectors can dramatically reduce the size and weight of chip-based magneto-optical traps. However, large-angle optical-frequency metasurface retroreflectors suffer from low efficiency and polarization distortions. Using inverse-design we demonstrate a high-efficiency large-angle polarization-maintaining metasurface retroreflector.
Light transport beyond diffusion in correlated scattering media
Authors: Dawda Shubham , Jimenez-Villar Ernesto , Dogariu Aristide
Published: July 2023

We demonstrate that direct measurements of photon pathlengths reveal extended ranges of sub-diffusive transport in 3D random media. This anomalous transport is associated to the hyperuniform structure generated by the Coulomb interaction between core-shell particles.
Inverse Design of Nonlocal Metasurfaces Using Augmented Partial Factorization
Authors: Li Shiyu , Lin Ho-Chun , Hsu Chia Wei
Published: July 2023

Topology optimization of nonlocal metasurfaces requires the objective-function gradient considering all angles of interest. We generalize the recent “augmented partial factorization” method to compute such gradient efficiently and inverse design a broad-angle metasurface beam splitter.
Computing the Optical Response of Metasurfaces Under Partially Coherent Illumination
Authors: Jun Revin , Lim Soon Wei Daniel , Hazineh Dean , Capasso Federico
Published: July 2023

We show that the approximate optical response of a periodic nanostructure with respect to normally incident partially coherent illumination can be reconstructed by a single electromagnetic simulation.
Electrically Reconfigurable Index Tuning Metasurface
Authors: Ni Jimmy H. , Zhou Weimin
Published: July 2023

We are reporting electrically tunable metasurface working in the range covering C-band to O-band. ENZ condition is enabled at/around optical telecommunications wavelength, which permits the design of new opto-electronic devices.
Faraday-Ramsey rotation measurement in a thin cell as analogy to atomic beam
Authors: Dikopoltsev Mark , Talker Eliran , Barash Yefim , Mazurski Noa , Levy Uriel
Published: July 2023

By confining Rubidium atoms in a micron scale vapor cell and illuminating them with two laterally displaced beams we mimic the behavior of an atomic beam and observe the Faraday-Ramsey effect at the micron scale.
Entangling X-rays through high harmonic down conversion
Authors: Sloan Jamison , Gorlach Alexey , Tzur Matan Even , Rivera Nicholas , Kaminer Ido , Soljačić Marin
Published: July 2023

We present a method to produce entangled photon pairs in the extreme ultraviolet (EUV) and X-ray regime, using a new highly nonperturbative nonlinear optical process which we term “high harmonic down conversion” (HHDC).
Direct imaging of valley-polarized excitons in a van der Waals heterostructure
Authors: Bacon David R. , Zhu Xing , Pareek Vivek , Karni Ouri , Barré Elyse , Man Michael K. , Madéo Julien , Hu Jenny , O’Beirne Aidan L. , Ribeiro Henrique B. , Heinz Tony F. , Dani Keshav M.
Published: July 2023

We directly image valley-polarized excitons in a WSe2/MoS2 heterostructure using time- and angle-resolved micro photoemission spectroscopy, before and after interlayer exciton formation.
Exciton-driven Floquet-Bloch states in Van der Waals semiconductors
Authors: Pareek Vivek , Bacon David , Zhu Xing , Chan Yang-Hao , Bussolotti Fabio , Chan Nicholas S , Urquizo Joel Pérez , Watanabe Kenji , Taniguchi Takashi , Man Michael K. , Madéo Julien , Qiu Diana , Goh Kuan Eng Johnson , da Jornada Felipe H. , Dani Keshav M.
Published: July 2023

We observe Floquet states driven by the time-periodic oscillations in self-energy due to an exciton in a monolayer Van der Waals semiconductor.
Symbol Rate Tolerance of Geometric Parameter Extraction-based Receiver IQ imbalance Correction
Authors: Mir Sameer Ahmad , Xu Chuang , Fan Qirui , Venkatasubramani Lakshmi Narayanan , Barry Liam , Lau Alan Pak Tao , Venkitesh Deepa
Published: July 2023

In this paper, we demonstrate the symbol rate tolerance of Geometric Parameter Extraction-based receiver IQ imbalance correction for PM-16QAM signals. Through experiments, we show that the algorithm can tolerate a wide range of imbalance values for data rates upto 640 Gbps.
Hardware Realization of Nonlinear Activation Functions for NN-based Optical Equalizers
Authors: Srivallapanondh Sasipim , Freire Pedro J. , Napoli Antonio , Turitsyn Sergei K. , Prilepsky Jaroslaw E.
Published: July 2023

To reduce the complexity of the hardware implementation of neural network-based optical channel equalizers, we demonstrate that the performance of the biLSTM equalizer with approximated activation functions is close to that of the original model.
III-V-on-Silicon-Nitride Mode-Locked Lasers
Authors: Cuyvers Stijn , Poelman Stijn , Reep Tom , Hermans Artur , de Beeck Camiel Op , Roelkens Gunther , Billet Maximilien , Kuyken Bart
Published: July 2023

Here, we will discuss the latest results on the integration of mode-locked lasers on a silicon nitride platform.
Feedback Enhanced Phonon Lasing in Cavity Optomechanics
Authors: Parsa Peyman , Shandilya Prasoon K. , Barclay Paul E.
Published: July 2023

We demonstrate an enhanced phonon lasing using measurement-based feedback. Our scheme results in a ∼50% increase in phonons for a GHz frequency diamond microdisk and expands the toolbox for spin-optomechanics with solid-state defect qubits.
Statistical Characteristics of Distributed Modal Crosstalk for Weakly-Coupled FMF Transmission
Authors: Qiao Gang , Zuo Mingqing , Zhang Jiarui , Long Chengbin , He Yongqi , Chen Zhangyuan , Li Juhao
Published: July 2023

We experimentally show that noise induced by the distributed modal crosstalk in weakly-coupled FMFs is well approximated by Gaussian distribution. Its impact on weakly-coupled MDM transmission systems is experimentally compared with ASE noise.
Spectral Broadening of 150 mJ From a Yb-Doped Thin-Disk Amplifier at 5 kHz Using a Gas-Filled Multipass Cell
Authors: Pfaff Y. , Barbiero G. , Rampp M. , Wang H. , Klingebiel S. , Teisset C. Y. , Jung R. , Woldegeorgis A. H. , Brons J. , Maier A. R. , Saraceno C. J. , Metzger T.
Published: July 2023

We report nonlinear spectral broadening of 150 mJ from a Yb-doped thin-disk amplifier at 5 kHz repetition rate using a Herriott-type multipass cell and show its compressibility, close to the Fourier-transform limit, to 37 fs.
Integrated Photonics using Transparent Conductive Oxides
Authors: Wang Alan X.
Published: July 2023

This paper reviews recent research progress of photonic integrated circuits using transparent conductive oxides. Especially, the heterogeneous integration of transparent conductive oxides with silicon photonics shows great potential for energy-efficient optical interconnects.
Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in Silicon Electronic-Photonic Platform
Authors: Kress Christian , Schwabe Tobias , Silberhorn C. , Scheytt J. Christoph
Published: July 2023

A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse bandwidths up to fopt = 100 GHz and repetition rates equal to fopt/9, fabricated in an electronic-photonic co-integrated platform utilizing linear on-chip drivers.
Photon Dynamics in Chip-Scale High-Peak-Power Semiconductor/Solid-state Vertically Integrated Laser
Authors: Yue Jianglin , Tanaka Kenji , Hirano Go , Yonezawa Gen , Shimizu Misaki , Iwakoshi Yasunobu , Tobita Hiroshi , Futagawa Noriyuki , Kamata Masanao
Published: July 2023

We experimentally verified the temporal dynamics of photons during passively Q-switched oscillation in semiconductor/solid-state vertically integrated laser cavities, which agrees well with the results predicted theoretically by a simultaneous rate equations model.
Generation of Multiple Obstruction-Free Channels for Free Space Optical Communication
Authors: Bin Ali Reza Saad , Burger Milos , Bassène Pascal , Nutting Tanner , Jovanovic Igor , N’Gom Moussa
Published: July 2023

Plasma filaments generated by ultrafast beams with orbital angular momentum can simultaneously clear two cylindrical transmission channels, within which an annular beam can propagate free of obstructions.
Non-Reciprocity-Based Integrated Biosensing In PT Symmetric Coupled Resonators
Authors: Darcie Todd , Aitchison J Stewart
Published: July 2023

We propose an EP-based biosensor which uses non reciprocal transmission measurements in PT-symmetric microring resonators. This approach only requires a single frequency probe and provides tunable dynamic range.
Flow-through Photonic Crystal Biosilica Optofluidic Device: a Platform for Ultra-Sensitive SERS Detection
Authors: Zhang Boxin , Juneja Subhavna , Wang Alan X.
Published: July 2023

We present a flow-through optofluidic SERS device with parts-per-quadrillion (10-15) sensitivity towards fentanyl. High density silver nanoparticles on photonic crystal bio-silica and enhanced mass transfer kinetics consequent to 104× improved sensitivity and rapid sensing time.
Tunable opto-electronic synthesizer at 10 GHz with ultralow phase noise
Authors: Kudelin Igor , Shirmohammadi Pedram , Groman William , Hanifi Samin , Kelleher Megan , Lee Dahyeon , McLemore Charles , Lind Alexander , Bowers Steven , Quinlan Franklyn , Diddams Scott
Published: July 2023

We introduce partial optical frequency division to generate 10 GHz microwaves with -147 dBc/Hz phase noise at 20 kHz offset. Electronic tuning covers the 8-12 GHz frequency range, while preserving low phase noise.
High-Sensitivity Time Error Detection of Pulse Repetition-Rate Multiplier Using Electro-Optic Sampling-Based Timing Detection
Authors: Hyun Minji , Ahn Changmin , Kim Jungwon
Published: July 2023

We demonstrate high-sensitivity measurement of delay time error in pulse repetition rate multiplier using electro-optic sampling-based timing detector. The proposed method showed 12- times higher sensitivity compared to radio-frequency spectrum measurement method.
Analysis of Non-Saturable Absorption for Optimization of L-Band EDF Performance
Authors: Jalilpiran Saber , Lefebvre Jacques , Wang Lixian , Messaddeq Younès , LaRochelle Sophie
Published: July 2023

Non-saturable absorption is revisited to characterize L-band EDFs, co-doped with either Yttrium or Ytterbium as de-clustering agents. Measurements in the C-band allow to evaluate erbium pair content that correlates with measured and simulated amplifier performance.
Near-Field Terahertz Emission Spectroscopy of Non-Linearities using Free Electrons
Authors: Rustomji Kaizad , Yannai Michael , Adiv Yuval , Dahan Raphael , Fishman Tal , Sivan Yonatan , Brener Igal , Mitrofanov Oleg , Kaminer Ido
Published: July 2023

The interaction of free-electron pulses with THz near-fields imprints a rich structure on the electron spectrum. We exploit this interaction in an ultrafast electron microscope distinguishing THz-generating non-linear mechanisms of optical rectification and photo-Dember effect.
High-speed Electro-optic Modulation in Silicon Nitride
Authors: Zhang Yi , Nauriyal Juniyali , Song Meiting , Granados-Baez Marissa , He Xiaotong , MacDonald Timothy , Cardenas Jaime
Published: July 2023

We demonstrate electro-optic modulation up to 15GHz (3dB bandwidth) in a silicon nitride ring resonator by electrically poling the silicon nitride at a high temperature to engineer an electro-optic effect.
Ultra-Efficient Foundry-Fabricated Resonant Modulators with Thermal Undercut
Authors: Rizzo Anthony , Deenadayalan Venkatesh , van Niekerk Matthew , Leake Gerald , Tison Christopher , Novick Asher , Coleman Daniel , Bergman Keren , Preble Stefan , Fanto Michael
Published: July 2023

We demonstrate highly efficient vertical junction microdisk modulators with selective substrate undercut in a 300 mm CMOS foundry. The devices achieve record thermo-optic efficiency for sub-5 µm radius, enabling next-generation low-energy, highly-parallel DWDM links.