bluuebunny/crossref_metadata_2025 huggingface dataset:
Millimeter-range Optical Trapping and Manipulation in Suspensions via Asymmetric Potentials
Authors: Lialys Justinas , Lialys Laurynas , Salandrino Alessandro , Fardad Shima
Published: August 2022

The well-known counter-propagating optical traps require the beams to be symmetrical for 3D trapping, resulting in a highly-sensitive system. Here, we study an easy-to-align counter-propagating trap with a broken symmetry, demonstrating stable trapping over millimeter-range.
Network analysis of Weyl semimetal photogalvanic systems
Authors: Luo Haokun , Jia Yufei , Tian Fugu , Khajavikhan Mercedeh , Christodoulides Demetrios
Published: August 2022

We develop a general methodology capable of analyzing the response of Weyl semimetal photogalvanic networks. To illustrate our approach, we carry out transport simulations in arbitrarily shaped configurations involving pertinent Weyl semimetals.
Eigenvalue Topology of Non-Hermitian Band Structures in Two and Three Dimensions
Authors: Wojcik Casey , Wang Kai , Dutt Avik , Zhong Janet , Fan Shanhui
Published: August 2022

In one dimension, eigenvalue topology of non-Hermitian photonic systems is classified by the braid group. Here, we give a complete description of the much richer eigenvalue topology in two and three dimensions.
Photonic Chern insulators from two-dimensional atomic lattices interacting with a single surface plasmon polariton
Authors: Rituraj  , Orenstein Meir , Fan Shanhui
Published: August 2022

We study the interaction of two-dimensional atomic lattices with a single surface plasmon polariton. We propose a general framework to realize photonic Chern insulators with an arbitrary Chern number. This enables us to design robust non-reciprocal photonic devices including unidirectional single-photon sources.
Strolling through a NISQ processor
Authors: Munro W. J. , Gong M. , Wang S. , Zha C. , Chen M.-C. , Huang H.-L. , Wu Y. , Zhu Q. , Zhao Y. , Li S. , Guo S. , Qian H. , Ye Y. , Chen F. , Ying C. , Yu J. , Fan D. , Wu D. , Su H. , Deng H. , Rong H. , Zhang K. , Cao S. , Lin J. , Xu Y. , Sun L. , Guo C. , Li N. , Liang F. , Bastidas V. M. , Nemoto Kae , Huo Y.-H. , Lu C.-Y. , Peng C.-Z. , Zhu X. , Pan J.-W.
Published: August 2022

We demonstrate high fidelity multi-particle quantum walks on an 8x8 two-dimensional square superconducting qubit NISQ processor with 62 functional qubits. Further we implement a Mach-Zehnder interferometer where quantum walkers can coherently traverse the circuit.
Machine Learning Detection of Quantum Many-Body Localization Phase Transition
Authors: Ziv Ron , Rubio-Abadal Antonio , Keselman Anna , Talmon Ronen , Bloch Immanuel , Segev Mordechai
Published: August 2022

We propose a scheme for detection of quantum many-body phase transitions using unsupervised machine learning. We validate it on simulated 1D Bose-Hubbard model, and then use it on an experimental 2D system undergoing many-body localization.
Spatiotemporal quantum parametric mode sorter
Authors: Kumar Santosh , Garikapati Malvika , Zhang He , Sua Yong Meng , Huang Yu-Ping
Published: August 2022

We demonstrate a spatio-temporal quantum parametric mode sorter that can achieve high extinction by selectively upconverting the signal modes with an optimized pump. This could serve as a viable resource for photon-efficient quantum communication and computation.
Transverse-Mode-Entangled Photon-Pair Generation in Optical Fiber
Authors: Kim D.-B. , Hu X.-Y. , Li S. , Carpenter J. , U’Ren A. B. , Garay-Palmett K. , Lorenz V. O.
Published: August 2022

We present our experimental results on generating photon pairs entangled in a transverse-mode Bell state in few-mode optical fiber by controlling the transverse mode of the pump to selectively excite spontaneous four-wave mixing processes.
Photon Trapping for Increased Efficiency of Cascaded Downconversion
Authors: Leger Alexandre , Gambhir Samridhi , Légère Julien , Hamel Deny R.
Published: August 2022

Cascaded spontaneous parametric downconversion is used to produce entangled photon triplets, although poor efficiency limits rates. As a solution, we propose trapping photons in an active cavity, giving them many chances at downconversion.
Telecom-Wavelength Bright Single Photon Sources with Post-Selected Indistinguishability
Authors: Lee Chang-Min , Buyukkaya Mustafa Atabey , Harper Samuel , Aghaeimeibodi Shahriar , Richardson Christopher J. K. , Waks Edo
Published: August 2022

We demonstrate a bright telecom-wavelength single photon source based on a tapered nanobeam containing InAs/InP quantum dots. We obtain a first-lens brightness of 21.0% and a post-selected Hong-Ou-Mandel visibility of 0.91 in the telecom O-band.
Polarization-Entangled Photons From Ultrathin Nonlinear Layers
Authors: Sultanov Vitaliy , Santiago-Cruz Tomás , Chekhova Maria V.
Published: August 2022

We report on the first-time generation of polarization-entangled photons via spontaneous parametric down-conversion in ultrathin nonlinear layers. Relaxed phase matching leads to an unprecedented tunability of the two-photon polarization state, not achievable in bulk sources.
Phase conjugation of orbital angular momentum in cylindrical vector beams by stimulated Brillouin scattering
Authors: Bisson Jean-François
Published: August 2022

We show experimentally and theoretically that the phase conjugation of orbital angular momentum (OAM) in cylindrical vector beams does not happen in most regions of the higher-order Poincaré sphere, except near the poles where the beam reduces to a scalar beam and conjugation of OAM may take place.
Brillouin amplification of helical Bloch modes carrying optical vortices
Authors: Zeng X. , Chen Y. , Frosz M. H. , Roth P. , Wong G. K. L. , Russell P. St.J. , Stiller B.
Published: August 2022

We observe Brillouin amplification of circularly polarized vortex modes in chiral photonic crystal fiber. Angular momentum conservation means that the pump and backward Stokes signals have opposite topological charge and spin.
Quantum-Coherent Light-Electron Interaction in an SEM
Authors: Chlouba T. , Shiloh R. , Hommelhoff P.
Published: August 2022

Quantum-coherent light-free-electron interaction was shown more than a decade ago in a transmission electron microscope leading to a variety of applications. We now show the quantum-coherent interaction in a scanning electron microscope, offering substantial advantages over TEMs.
Observing the Modification of Quantum Statistics of Plasmonic Systems
Authors: You C. , Hong M. , Bhusal N. , Chen J. , Quiroz-Juárez M. A. , Fabre J. , Mostafavi F. , Guo J. , De Leon I. , de J. León-Montiel R. , Magaña-Loaiza O. S.
Published: August 2022

We demonstrate that quantum statistics are not always preserved in plasmonic systems and report the observation of their modification. We show the potential of optical near fields to modify the statistics of multiparticle systems.
Fluorescence enhancement of Er3+-ions using reverse hybrid plasmonic nano-focusing
Authors: Güsken Nicholas A. , Fu Ming , Zapf Maximilian. , Nielsen Michael P. , Dichtl Paul , Röder Robert , Maier Stefan A. , Ronning Carsten , Brongersma Mark L. , Oulton Rupert F.
Published: August 2022

We report the broadband fluorescence enhancement of erbium ions embedded in a single non-resonant reverse nano-focusing waveguide. We measure a large radiative Purcell enhancement of a total emission rate enhancement of > 250 across the entire measured spectrum including the prominent telecoms C-band. Further, we observe the enhancement of single electric dipole transitions from Stark-split levels at room temperature.
Tunable optical switches based on spin valley quantum coherence in hybrid WS2-metallic nanoantenna systems
Authors: Sadeghi Seyed M.
Published: August 2022

A tunable optical switching process based on spin valley quantum coherence in a hybrid system consisting of a WS2 monolayer and a metallic nanoantenna is investigated. This process is induced by plasmonically-mediated intervalley exciton-plasmon coupling which is shown to be quite resilient against ultrafast valley decoherence.
Magneto-optical Nonreciprocity without 3D Chirality: Archimedean Spirals on InSb
Authors: Peng Peisong , Thapa Grija , Zhou Jiangfeng , Talbayev Diyar
Published: August 2022

We achieve tunable nonreciprocal directional dichroism at terahertz frequencies without breaking the spatial inversion symmetry by combining an Archimedean spiral metasurface and the magneto-optical effect in indium antimonide (InSb) in one hybrid metamaterial.
Chiral-Symmetric Higher-Order Topological Phases Protected by Multipole Winding Number Invariants
Authors: Benalcazar Wladimir A. , Cerjan Alexander
Published: August 2022

We introduce novel higher-order topological phases in chiral-symmetric systems protected by multipole winding numbers, bulk integer topological invariants that can yield multiple topological states per corner.
Metasurface based Orbital Angular Momentum Multiplexing and Demultiplexing at E-band frequency
Authors: Chung Hyeongju , Kim Daeik , Choi Eunmi , Lee Jongwon
Published: August 2022

We demonstrate orbital-angular-momentum (OAM) multiplexing and demultiplexing at E-band frequency using a metasurface. With off-axis integration, two Gaussian beams are converted to two orthogonal OAM beams, which are in turn demultiplexed into two off-axis directions.
Tailoring the Spectral Response of Multilayered Chiral Mid-Infrared Metamaterials
Authors: Barnard H. R. , Nash G. R.
Published: August 2022

A simulation and experimental study of multilayered chiral metamaterial stacks, optically active in the important mid-IR region of the spectrum. We demonstrate the ability to tune the spectral response based on layer configuration.
Quantum information processing of spatially entangled photons with a programmable light converter
Authors: Lib Ohad , Sulimany Kfir , Bromberg Yaron
Published: August 2022

We demonstrate a reconfigurable and scalable processor of entangled photons based on multi-plane light conversion and perform key tasks of quantum information processing including high-dimensional entanglement certification, arbitrary state transformations, and mode conversion.
8-Channel Quantum Photonic Network Switch
Authors: Dong Mark , Palm Kevin , Clark Genevieve , Golter D. Andrew , Chen Kevin C. , Li Linsen , Leenheer Andrew J. , Dominguez Daniel , Zimmermann Matthew , Heim David , Witte Alex , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: August 2022

We report a reconfigurable quantum photonic network switch with sub-μs rise times operating at visible wavelengths. Using hardware error correction, this system enables high-fidelity access to eight channels connected to spin memories.
Electric-Field Programmable Spin Arrays for Scalable Quantum Repeaters
Authors: Wang Hanfeng , Trusheim Matthew E. , Kim Laura , Englund Dirk
Published: August 2022

We introduce an electric-field programmable spin array (FPSA) for scalable quantum repeaters. We analyze the FPSA scheme for arrays of nitrogen vacancy color centers in a slow-light diamond waveguide.
A Phase-Coherent On-Chip Single-Photon SWAP Gate
Authors: Cheng Xiang , Xie Zhenda , Chang Kai-Chi , Sarihan Murat Can , Lee Yoo Seung , Li Yongnan , Yu Mingbin , Kwong Dim-Lee , Shapiro Jeffrey H. , Wong Franco N. C. , Wong Chee Wei
Published: August 2022

We demonstrate a single-photon SWAP gate between polarization and spatial-momentum qubits on a silicon-on-oxide chip. Phase coherence of the SWAP gate operation is confirmed via single-photon self-interference, with visibility up to 98.89%.
Magnetic Field Amplification in Relativistic Laser-Driven Implosion of a Gas-Density Structured Target
Authors: Griff-McMahon J. , Mikhailova J. M.
Published: August 2022

We demonstrate significant magnetic field amplification by injecting a relativistic beam along the axis of a preformed gas channel. The induced plasma implosion is found to be the main amplification mechanism.
Telecom Quantum Network Node via Atom-Nanophotonic Coupling
Authors: Glachman Noah , Menon Shankar , Chai Yuzhou , Singh Kevin , Dibos Alan , Borregaard Johannes , Bernien Hannes
Published: August 2022

We propose neutral atoms coupled to telecom nanophotonic cavities as quantum network nodes. Our novel protocol for generating atom-telecom photon entanglement enables a scalable network architecture featuring identical qubits and direct telecom operation.
Entanglement-enhanced Optomechanical Sensing
Authors: Xia Yi , Agrawal Aman R. , Pluchar Christian M. , Zhuang Quntao , Wilson Dalziel J. , Zhang Zheshen
Published: August 2022

We experimentally demonstrate entanglement-enhanced optomechanical sensing in which entangled optical probes jointly read out the displacements of two mechanical membranes, enabling enhanced force sensitivities and enlarged measurement bandwidths.
Towards a Fully Connected Many-User Entanglement Distribution Quantum Network Within Deployed Telecommunications Fibre-Optic Infrastructure
Authors: Clark M. J. , Alia O. , Wang R. , Bahrani S. , Aktas D. , Kanellos G. T. , Loncaric M. , Samec Ž. , Peranić M. , Radman A. , Stipcevic M. , Nejabati R. , Simeonidou D. , Rarity J. G. , Joshi S. K.
Published: August 2022

We present developments in entanglement distribution quantum networks towards a fully connected, scalable, many-user network, which is not limited to simple quantum key distribution protocols.
Supersensitive Optical Phase Measurement Using a Novel Deterministic Multi-Photon Noon State
Authors: Cogan D. , Su Z.-E. , Peniakov G. , Gershoni D.
Published: August 2022

On demand generated Noon state is used for optical phase measurement with precision which is better than the standard noise limit, depending only on the detectors’ efficiency.
Tailoring spontaneous emission rates from atomic systems with shaped free-electron wavepackets
Authors: Lim Jeremy , Ang Yee Sin , Ang Lay Kee , Wong Liang Jie
Published: August 2022

We show that electron-photon and atom-photon interactions can be engineered to interfere with each other, allowing us to tailor the total spontaneous emission rate through the shape of quantum electron wavepackets.
Light-induced tunable optical properties of 1T-TaS2 at different temperatures
Authors: Li Weijian , Naik Gururaj V.
Published: August 2022

The c-axis permittivity of 1T-TaS2 – a quasi-2D charge-density-wave material – changes upon illumination due to light-induced reorganization of CDW stacking. Here we probe the mechanism of this reorganization and find a nucleation mechanism at work.
Complete Coupling of Light into Surface Polaritons
Authors: Dias Eduardo J. C. , de Abajo F.J. García
Published: August 2022

We show that a small scatterer placed at a suitable distance from a given surface can couple light completely into the surface modes supported by the surface, under illumination by an adequately modulated field.
Long-range dipole-dipole interactions in a plasmonic lattice
Authors: Boddeti Ashwin K. , Guan Jun , Sentz Tyler , Juarez Xitali , Newman Ward , Cortes Cristian , Odom Teri W. , Jacob Zubin
Published: August 2022

We observe long-range dipole-dipole interactions in a plasmonic lattice mediated by collective plasmonic lattice modes. Fluorescence lifetime measurements show density-dependent non-exponential decay dynamics that commensurate to over 800 nm mean nearest-neighbor separation between interacting emitters.
Observation of a Bimorphic Floquet Topological Insulator
Authors: Beck Julius , Pyrialakos Georgios G. , Heinrich Matthias , Maczewsky Lukas J. , Khajavikhan Mercedeh , Kantartzis Nikolaos V. , Szameit Alexander , Christodoulides Demetrios N.
Published: August 2022

We introduce a novel class of Floquet topological insulators simultaneously hosting Chern-type and anomalous edge states. The driving mechanism is implemented in a chained honeycomb lattice, allowing us to observe its different chiral edge states.
Augmenting the Sensing Performance of Entangled Photon Pairs through Asymmetry
Authors: Michael Yoad , Jonas Isaac , Bello Leon , Rosenbluh Michael , Pe’er Avi
Published: August 2022

We explore experimentally the squeezing enhanced phase-sensing performance of an SU(1,1) interferometer and optimize its detection scheme under realistic conditions of loss and coherent seeding. We demonstrate improvement in the interference contrast and phase sensitivity.
Remotely Establishing Polarization Entanglement by Entanglement Transfer
Authors: Bohmann Martin , Ecker Sebastian , Sohr Philipp , Bulla Lukas , Ursin Rupert
Published: August 2022

We experimentally establish polarization entanglement between photon pairs distributed over noisy polarization channels. We exploit energy-time entanglement for transmission, and then transfer the entangled state at the receivers to the polarization domain.
Monolithic integration of single-photon detectors with low-loss reconfigurable LNOI optical circuits
Authors: Lomonte Emma , Wolff Martin A. , Beutel Fabian , Ferrari Simone , Schuck Carsten , Pernice Wolfram H.P. , Lenzini Francesco
Published: August 2022

We integrate electro-optic modulators and superconducting nanowire single-photon detectors on a single low-loss Lithium-Niobate-On-Insulator device. We show single photon detection at modulation frequency up to 1 GHz and static reconfigurability with an optimal bias-drift-free operation.
Ultra-broadband quadrature squeezing with thin-film lithium niobate nanophotonics
Authors: Chen Pao-Kang , Briggs Ian , Hou Songyan , Fan Linran
Published: August 2022

We demonstrate squeezed light generation with parametric down-conversion single-pass configuration on thin-film lithium niobate nanophotonics. We measure 0.56 dB quadrature squeezing (∼2.6 dB inferred on-chip) with 7 THz bandwidth.
Cascaded Second Order Optical Nonlinearities in a Dielectric Metasurface
Authors: Gennaro Sylvain D. , Doiron Chloe , Karl Nicholas , Iyer Prasad P. , Sinclair Michael B. , Brener Igal
Published: August 2022

In this work, we prove the existence of cascaded second-order nonlinearities in a dielectric metasurface by analyzing the second and third wave mixing signal in conjunction with crystal symmetry and polarization selection rules.
Time Domain Modeling of Inhomogeneous Broadening in Nonlinear Optics
Authors: Prokopeva Ludmila J. , Jaffray Wallace , Mkhitaryan Vahagn , Ferrera Marcello , Kildishev Alexander V.
Published: August 2022

Currently, only material models with homogeneous broadening are implemented in time domain computational photonics, while modeling inhomogeneous broadening remains a challenge. We present an efficient approach to time-domain modeling of Gauss-Lorentz absorption in linear/nonlinear materials.
Enhancing polariton nonlinearity via interlayer excitons in bilayer MoS2
Authors: Datta Biswajit , Khatoniar Mandeep , Deshmukh Prathmesh , Bushati Rezlind , De Liberato Simone , Cohen Stephane Kena , Menon Vinod M.
Published: August 2022

We report the first demonstration of strong coupling of an interlayer exciton (IE). This results in an order of magnitude enhancement in nonlinear optical response compared to the more common intralayer exciton-polaritons.
Nonlinearity-Induced Nonreciprocity in Passive Silicon Gratings Supporting Quasi-Bound States in the Continuum
Authors: Cotrufo Michele , Cordaro Andrea , Polman Albert , Alù Andrea
Published: August 2022

Optical nonlinearities, combined with structural asymmetry, can break reciprocity and realize devices that transmit light asymmetrically. We show the first experimental implementation of this concept for free-space radiation, using silicon metasurfaces supporting asymmetric quasi-bound states.
White Rabbit-assisted quantum network node synchronization with quantum channel coexistence
Authors: Gerrits T. , Burenkov I. A. , Li-Baboud Y.S. , Rahmouni A. , Anand D. M. , Hala  , Slattery O. , Battou A. , Polyakov S. V.
Published: August 2022

We show that the Ethernet-based time transfer protocol ‘White Rabbit’ can synchronize two distant quantum-networked nodes to within 4 ps, enabling HOM interference at >90 % visibility using 17.6 ps FWHM single-photons coexisting with White Rabbit.
Noise Rejection Through An Improved Quantum Illumination Protocol
Authors: Gregory T. , Moreau P.-A. , Mekhail S. , Wolley O. , Padgett M.J.
Published: August 2022

We demonstrate an improved full-field quantum illumination protocol that achieves the rejection of 99.9% of background light. This imaging protocol has applications in covert imaging and quantum LIDAR schemes.
Synchronizing a quantum local area network with White Rabbit
Authors: Alshowkan Muneer , Evans Philip G. , Williams Brian P. , Rao Nageswara S. V. , Marvinney Claire E. , Pai Yun-Yi , Lawrie Benjamin J. , Peters Nicholas A. , Lukens Joseph M.
Published: August 2022

We demonstrate a scalable quantum local area network architecture using White Rabbit timing components. Synchronizing three distant nodes with ultralow timing jitter, we obtain significantly improved entanglement distribution fidelity over previous results with GPS clocks.
Ultrafast Dynamics of Photochromic Molecules Coupled to Anisotropic Plasmon Nanoantennas
Authors: Kuttruff Joel , Romanelli Marco , Pedrueza-Villalmanzo Esteban , Allerbeck Jonas , Fregoni Jacopo , Saavedra-Becerril Valeria , Andreasson Joakim , Brida Daniele , Dmitriev Alexandre , Corni Stefano , Maccaferri Nicolò
Published: August 2022

We study coupling of merocyanine to aluminum nanoantennas in weak and strong interaction regimes. Experiments reveal modification of the molecular dynamics induced by the plasmons as verified by quantum modelling of the hybrid system.
Longitudinally Structured Light Sheets for 3D Holography
Authors: Dorrah Ahmed H. , Bordoloi Priyanuj , de Angelis Vinicius S. , de Sarro Jhonas O. , Zamboni-Rached Michel , Ambrosio Leonardo A. , Capasso Federico
Published: August 2022

We demonstrate a new holographic technique which projects target 3D scenes constructed from parallel multi-sheets oriented perpendicular to the hologram plane. Our holograms provide high axial resolution and realistic depth perception for AR/VR applications.
A Robust and Non-Interleaved Full-Color Metasurface Hologram with Suppressed Color Crosstalk
Authors: Ding Yimin , Duan Yao , Zhang Lidan , Ni Xingjie
Published: August 2022

We developed and experimentally demonstrated a full-color metasurface hologram based on phase optimization, with neither pixel interleaving nor Fourier space multiplexing of three primary color channels.
Diffractive Networks All-Optically Reconstruct Holograms
Authors: Rahman Md Sadman Sakib , Ozcan Aydogan
Published: August 2022

We present a new framework for computer-free, all-optical reconstruction of inline holograms through a passive diffractive network that is trained with holographic image data using deep learning.
Super resolution imaging through opacity based on auto-modulated speckle illumination
Authors: Wang Zhao , Wang Shan Shan , Ma Rui , Liu You Wei , Zhu Hong Yang , Zhang Yong , Zhang Wei Li
Published: August 2022

Imaging through opacity is proposed based on auto-modulated multimode fiber speckle illumination. The imaging resolution is improved by making use of the intrinsic characteristics of the speckle illumination and a localization strategy.
The Transition from Linear to Quadratic Flux Scaling in Nonlinear Optical Processes with Variable Brightness Broadband Squeezed Vacuum
Authors: Landes Tiemo , Merkouche Sofiane , Allgaier Markus , Smith Brian J. , Raymer Michael G.
Published: August 2022

We characterize broadband parametric down conversion at low and high gain regimes. Two-photon absorption is measured at high gain, and sum-frequency generation is used to investigate the transition to high gain, and spectrally resolve two-photon interactions.
Generating Quantum Light: New Prospects from Superradiance
Authors: Baranes Gefen , Gorlach Alexey , Ruimy Ron , Faran Michael , Pizzi Andrea , Kaminer I.
Published: August 2022

We discover a property universal to all superradiant processes: the radiation undergoes a transition from classical to quantum, distinguished by a negative Wigner function, opening new avenues toward the generation of engineered quantum light states.
Chiral Perfect Absorption on Exceptional Surfaces
Authors: Soleymani S. , Zhong Q. , Mokim M. , Rotter S. , El-Ganainy R. , Özdemir Ş. K.
Published: August 2022

We demonstrate an exceptional surface in a waveguide-coupled resonator by establishing unidirectional coupling between its frequency-degenerate counterpropagating modes. When operated on the ES, the system chiral perfect absorption with quartic lineshape.
Linear Response of Optical Systems With Exceptional Points
Authors: Hashemi A. , Busch K. , Christodoulides D. N. , Ozdemir S. K. , El-Ganainy R.
Published: August 2022

We develop a linear theory for non-Hermitian optical systems having exceptional points. In contrast to previous studies, our analysis results in an exact expression for the resolvent operator without the need to use perturbation expansions.
Dissipative Kerr solitons in a photonic dimer on both sides of an exceptional point
Authors: Tikan A. , Komagata K. N. , Tusnin A. , Riemensberger J. , Churaev M. , Guo H. , Kippenberg T. J.
Published: August 2022

We study experimentally and theoretically dissipative Kerr soliton formation in a driven photonic dimer on both sides of exceptional points. We describe a diversity of nonlinear coherent states emerging from the additional dimensionality.
Large-area SNSPDs for up to 7.4 μm wavelengths
Authors: Colangelo Marco , Walter Alexander B. , Korzh Boris , Schmidt Ekkehart , Bumble Bruce , Lita Adriana E. , Beyer Andrew D. , Allmaras Jason P. , Briggs Ryan M. , Kozorezov Alexander , Wollman Emma E. , Shaw Matthew D. , Berggren Karl K.
Published: August 2022

We demonstrate large-area superconducting nanowire single-photon detectors (SNSPDs) for operation in the mid-IR band, up to 7.4 μm.
Event-Driven SPAD Array for Quantum-Enhanced Imaging
Authors: Madonini Francesca , Cusini Iris , Severini Fabio , Villa Federica
Published: August 2022

We present a novel Single Photon Avalanche Diode (SPAD) imager optimized to detect and map temporally coincident photons in quantum-enhanced imaging with a modular TDC-free event-driven architecture, seamlessly scalable to large format arrays.
A Single-Photon-Sensitivity Spectrometer Based on Metasurfaces
Authors: Zheng Jingyuan , Xiao You , Hu Mingzhong , Li Hao , You Lixing , Zhang Wei , Huang Yidong
Published: August 2022

We demonstrate a single-photon-sensitivity spectrometer based on metasurfaces and superconducting nanowire single-photon detectors with 1.5% ~ 9.5% total detection efficiency at 1100 nm ~ 1700 nm.
Optimal purification of a spin ensemble by quantum-algorithmic feedback
Authors: Haeusler Urs , Jackson Daniel M. , Zaporski Leon , Bodey Jonathan H. , Shofer Noah , Clarke Edmund , Hugues Maxime , Atatüre Mete , Le Gall Claire , Gangloff Dorian A.
Published: August 2022

We present a coherent quantum feedback algorithm to purify a mesoscopic spin ensemble at the ultimate level of a single spin. Applying it to a quantum dot narrowed nuclear-spin fluctuations by two orders of magnitude.
Quantum Entanglement in a Double-Resonant Optical Parametric Oscillator (OPO) based on Hot Rubidium Vapour
Authors: Guerrero A. Montaña , Rincon Celis R. L. , Nussenzveig P. , Martinelli M. , Marino A. M. , Florez H. M.
Published: August 2022

We demonstrate the first measurement of entanglement between the twin beams generated by an OPO based on four-wave mixing in 85Rb above the threshold. We reconstruct the covariance matrix by using the method of resonator detection.
Lightweight Long-Wave Infrared Camera via a Single 5-Centimeter-Aperture Metalens
Authors: Hou Mingming , Chen Yan , Yi Fei
Published: August 2022

We present a lightweight long-wave infrared camera via a single 5cm-aperture, 0.5mm-thick, and 3.7g-weight metalens fabricated by standard semiconductor technology. Imaging experiments with an uncooled FPA are conducted to evaluate the performances of the metalens.
Wafer-Scale Functional Metasurfaces on Free-Standing Membranes
Authors: Tseng Ming Lun , Leitis Aleksandrs , John-Herpin Aurelian , Kivshar Yuri S , Altug Hatice
Published: August 2022

We demonstrate free-standing metasurfaces made by a new wafer-scale and CMOS compatible nanofabrication method and produce nanostructures over large-area transparent oxide membranes. Applications include narrow-band spectral filtering, efficient light focusing, polarization control and optofluidic biosensors.
Metasurface-Enabled Hyperspectral Polarimetric Camera
Authors: Zhang Lidan , Ding Yimin , Chang Shengyuan , Duan Yao , Chen Xi , Ni Xingjie
Published: August 2022

We theoretically and experimentally demonstrate a metasurface capable of processing multidimensional optical information, including light intensity distribution, spectrum, and polarization, which can be used for hyperspectral polarimetric camera.
Engineering Long-Range Coupling in Metasurfaces
Authors: Palei Milan , Haug John , Hoffman Anthony J.
Published: August 2022

The far-field diffraction pattern of subwavelength ridge-like plasmonic metasurfaces is measured. Secondary diffractions peaks arise due to propagating surface modes, providing an additional degree of freedom for tailoring metasurfaces.
Enhanced Chiroptical Sensing through Coherent Perfect Absorption in a Parity-Time Symmetric System
Authors: Wu Hsin-Yu , Vollmer Frank
Published: August 2022

We report how a coherent perfect absorber (CPA) enabled by an achiral optical system obeying parity-time (PT) symmetry has an enhanced ability to effectively sense molecular chirality of monolayered substances with unprecedented sensitivities.
Seeing through unknown, random diffusers using diffractive optical networks
Authors: Luo Yi , Zhao Yifan , Li Jingxi , Çetintaş Ege , Rivenson Yair , Jarrahi Mona , Ozcan Aydogan
Published: August 2022

Diffractive deep neural networks composed of spatially-engineered transmissive layers were designed and experimental demonstrated to see through unknown, random phase diffusers, instantaneously reconstructing images of unknown objects without the need for a digital computer.
Nonlinear nano-imaging of few-fs coherent dynamics in 2D graphene-semiconductor heterostructures
Authors: Luo Wenjin , Song Renkang , Whetten Benjamin , Jiang Tao , Cheng Xinbin , Belyanin Alexey , Raschke Markus B.
Published: August 2022

Using correlative adiabatic plasmonic nanofocused four-wave mixing and two-photon photoluminescence we image nanoscale heterogeneity, resolve few- to 10’s fs coherent dynamics, and model underlying interlayer coupling in 2D graphene/WSe2 heterostructures.
Ultrafast nanoscopy of an excitonic insulator-metal transition in twisted bilayer WSe2
Authors: Zizlsperger Martin , Siday Thomas , Sandner Fabian , Brem Samuel , Perea-Causin Raul , Schiegl Felix , Nerreter Svenja , Plankl Markus , Merkl Philipp , Mooshammer Fabian , Huber Markus A. , Malic Ermin , Huber Rupert
Published: August 2022

Many-body interactions between excitons in a transition-metal dichalcogenide bilayer drive a transition into an electron-hole liquid at high densities. Using ultrafast polarization nanoscopy, we unveil spatiotemporal dynamics of this continuous Mott transition on the nanoscale.
Probing Free Carrier and Exciton Dynamics in Bulk Gallium Selenide with Two-Dimensional Electronic Spectroscopy
Authors: Deckert Thomas , Allerbeck Jonas , Spitzner Laurens , Brida Daniele
Published: August 2022

Ultrafast two-dimensional electronic spectroscopy with phase-locked pump pulses provides a unique method to disentangle exciton and free carrier dynamics in the prototypical semiconductor gallium selenide with sub-10 fs temporal and 4 meV spectral resolution.
A Floquet Topological Phase Induced by PT-symmetry in 2D Photonic Lattices
Authors: Pyrialakos Georgios G. , Beck Julius , Heinrich Matthias , Khajavikhan Mercedeh , Szameit Alexander , Christodoulides Demetrios N.
Published: August 2022

We show that a judicious modulation of gain and loss can generate a non-trivial topological phase in a honeycomb photonic lattice, demonstrating unidirectional edge states with real eigenvalues.
Parity-time Symmetric Optical Neural Networks
Authors: Deng Haoqin , Khajavikhan Mercedeh
Published: August 2022

An optical neural network architecture is proposed that utilizes parity-time symmetric couplers as its building blocks. Gain–loss contrasts across the array are adjusted as a means to train the network.
Vortex laser arrays with topological charge control and self-healing of defects
Authors: Piccardo Marco , de Oliveira Michael , Toma Andrea , Aglieri Vincenzo , Forbes Andrew , Ambrosio Antonio
Published: August 2022

We present a non-Hermitian metasurface laser generating 100 strongly coupled vortices. The internal coupling mechanism allows to tune their charges as well as to heal defects in the system, opening new perspectives in topological optics.
Dynamics of Chiral State Transfer in the Vicinity of a Non-Hermitian Singularity
Authors: Nasari H. , Lopez-Galmiche G. , Lopez-Aviles H. E. , Schumer A. , Hassan A.U. , Zhong Q. , Rotter S. , LiKamWa P. L. , Christodoulides D. N. , Khajavikhan M.
Published: August 2022

The parametric steering of a non-Hermitian Hamiltonian on closed loops excluding the exceptional point is studied. It is shown that a combination of topology and shape of the Riemann surfaces governs the topological state transfer.
Multimode optical field reconstruction from higher-order nonclassicality parameters
Authors: Knoll Laura , Petrini Giulia , Piacentini Fabrizio , Traina Paolo , Moreva Ekaterina , Polyakov Sergey V. , Degiovanni Ivo Pietro , Genovese Marco
Published: August 2022

We experimentally demonstrate a multimode field reconstruction technique combining the N
th
-order correlation functions (g(
N
)’s) and the recently proposed θ (
N
) parameters, resilient to Poissonian noise. Our technique is best-suited for characterizing single-photon emitters with background noise.
Nuclear Spin-wave Quantum Register for a Rare-earth Ion Qubit
Authors: Ruskuc Andrei , Wu Chun-Ju , Rochman Jake , Choi Joonhee , Faraon Andrei
Published: August 2022

We implement a nuclear spin-wave quantum register for optically-addressable 171Yb3+ qubits in YVO4 using a local ensemble of 51V5+ lattice ions. This quantum mem-ory is a critical demonstration for future rare-earth ion-based quantum repeater networks.
Coherent Optical Control of Single Ytterbium Ions in a GaAs Hybrid Photonic Crystal Cavity on Yb:YVO4
Authors: Wu Chun-Ju , Ruskuc Andrei , Riedel Daniel , Faraon Andrei
Published: August 2022

We demonstrate coherent optical control of single Yb3+ ions in YVO4 coupled evanescently to a GaAs photonic crystal cavity.
Magnetic Control and Entanglement of Electron Spins with Bunched Electron Beams
Authors: Black Dylan S. , Grzesik Jakob , Vuckovic Jelena , Solgaard Olav
Published: August 2022

We investigate longitudinally structured electron beam interaction with two-level spin quantum systems. Deriving a semi-classical and fully quantum model, we demonstrate entanglement generation of two spins and independent control of system spin and energy states.
Spatially Asymmetric Hot-Carrier Transport for Ultrafast Generation of Electromagnetic Waves
Authors: Taghinejad Mohammad , Lee Kyutae , Kim Andrew S. , Brongersma Mark L. , Cai Wenshan
Published: August 2022

We demonstrate the ultrafast conversion of statically passive dielectrics (e.g., amorphous TiO2) to transient second-order nonlinear media following the femtosecond transfer of hot electrons, enabling active control of nonlinear interactions, envisioned for terahertz functionalities.
Subwavelength Color Router
Authors: Catrysse Peter B. , Zhao Nathan , Jin Weiliang , Fan Shanhui
Published: August 2022

We introduce a subwavelength color router for solid state image sensors. Our design achieves perfect red-green-blue color routing without loss of photons in a subwavelength footprint and has broadband, polarization-independent, and angular robust response.
Tunable Metasurface using thin film lithium-niobate in the telecom regime
Authors: Weiss Aharon , Frydendahl Christian , Bar-David Jonathan , Zektzer Roy , Edrei Eitan , Engelberg Jacob , Mazurski Noa , Desiatov Boris , Levy Uriel
Published: August 2022

We demonstrate a tunable metasurface made of aluminum nanodisk array coated with ITO on a thin film of lithium niobate. A spectral resonant shift of few nanometers and modulation contrast of ~40% are observed.
Sum-frequency generation in high-Q GaP metasurfaces
Authors: Camacho-Morales Rocio , Xu Lei , Zhang Haizhong , Ha Son Tung , Krivitskiy Leonid , Kuznetsov Arseniy I. , Rahmani Mohsen , Neshev Dragomir
Published: August 2022

We demonstrate enhanced visible sum-frequency generation in doubly resonant GaP metasurfaces. Record conversion efficiency is achieved in the metasurface by the excitation of high-Q waveguide-type bound state in the continuum resonances with non-trivial polarization dependence.
Terahertz Generation from GaAs Metasurfaces: Role of Surface Nonlinearity
Authors: Hale Lucy L , Jung Hyunseung , Gennaro Sylvain , Briscoe Jayson , Harris Charles Thomas , Luk Ting Shan , Addamane Sadhvikas J , Reno John L , Brener Igal , Mitrofanov Oleg
Published: August 2022

We show that a GaAs metasurface can generate THz radiation with comparable efficiency to a bulk GaAs crystal. We attribute the enhanced generation to second order nonlinearity with the surface making a strong contribution.
Mid-Infrared SEIRA Sensors Employing Liquid-Metal-Based Nanophotonic Structures
Authors: Miao Xianglong , Luk Ting Shan , Liu Peter Qiang
Published: August 2022

We demonstrate mid-infrared SEIRA sensors employing an unconventional liquid-metal-based nanophotonic structure, which allows for convenient delivery of thin film analyte into the sensing hot spots. State-of-the-art SEIRA sensing performance was demonstrated for sensing monolayer 1-octadecanethiol.
Terahertz conductivity of nanograined bulk Bi2Te3
Authors: Han Jeong Woo , Izadi Sepideh , Salloum Sarah , Wolff Ulrike , Schnatmann Lauritz , Bhattacharya Ahana , Asaithambi Aswin , Matschy Sebastian , Schlörb Heike , Reith Heiko , Perez Nicolas , Nielsch Kornelius , Schulz Stephan , Schierning Gabi , Mittendorff Martin
Published: August 2022

Nanograined Bi2Te3 offers a large surface-to-volume ratio, making it an interesting material to employ the high mobility surface states for devices. We present THz spectroscopic measurements to reveal the role of the surface carriers.
Experimental Demonstration of 3D Inverse Designed Metaoptics in Mid-Infrared
Authors: Roberts Gregory , Ballew Conner , Foo Ian , Hon Philip , Faraon Andrei
Published: August 2022

Practical realizations of 3-dimensional inverse designed photonics at optical wavelengths have been limited by fabrication and measurement challenges. We present experimental results for mid-infrared multilayer nanophotonics fabricated using two photon lithography for advanced imaging applications.
Visualizing exciton coupling dynamics in transition metal dichalcogenide heterostructures in space and time
Authors: Purz Torben L. , Martin Eric W. , Rivera Pasqual , Holtzmann William G. , Xu Xiaodong , Cundiff Steven T.
Published: August 2022

We demonstrate coherent coupling between excitons in a MoSe2/WSe2 heterostructure, as well as rapid interlayer electron and hole transfer. We visualize the spatial homogeneity of the coupling in the presence of significant sample inhomogeneities.
Large Scale Deterministic Creation of Single Photon Emitters in Silicon Nitride Nanopillars
Authors: Peana Samuel , Yesilyurt Omer , Mkhitaryan Vahagn , Senichev Alexander , Martin Zachariah O. , Lagutchev Alexei S. , Boltasseva Alexandra , Shalaev Vladimir M.
Published: August 2022

We demonstrated large scale deterministic creation of single photon emitters in annealed silicon nitride on silicon oxide pillars. The estimated single photon emitter yield is approximately 50% with a lateral accuracy of ±85nm.
All-optical Scalable Spatial Coherent Ising Machine
Authors: Strinati Marcello Calvanese , Pierangeli Davide , Conti Claudio
Published: August 2022

We propose an all-optical spatial coherent Ising machine with a parametric cavity and spatial light modulator (SLM). We discuss how different SLM configurations realize different couplings, and then study the performance of the proposed machine.
Degenerate multi-frequency radiation of two-color pulse compounds
Authors: Melchert Oliver , Willms Stephanie , Oreshnikov Ivan , Yulin Alexey , Babushkin Ihar , Morgner Uwe , Demircan Ayhan
Published: August 2022

We discuss emission of multi-frequency radiation by oscillating two-frequency soliton molecules in nonlinear waveguides. We demonstrate that subpulse dynamics can cause unexpected degenerate spectral bands with complex structure that can be precisely predicted theoretically.
An optical parametric Bragg amplifier on a CMOS-chip
Authors: Choi Ju Won , Sohn Byoung-Uk , Sahin Ezgi , Chen George F. R. , Xing Peng , Ng Doris K. T. , Eggleton Benjamin J. , Tan Dawn T. H.
Published: August 2022

We demonstrates the first optical prametric amplification using nonlinear Bragg grating where enhanced phase matching is enabled by utilizing the rapid increase and decrease in effective index near the stopband. An on/off parametric gain of 20dB is achieved in a 3-mm ultra-silicon rich nitride Bragg grating at a low peak power of 1.6W.
Efficient Third-harmonic Generation Control with Ultrathin Dielectric Geometric-phase Metasurface
Authors: Liu Bingyi , Huang Lingling , Zentgraf Thomas
Published: August 2022

Efficient third-harmonic generation control is theoretically studied. Dielectric nanostructures placed on the metallic substrate could offer effective geometric-phase modulation on third-harmonic signals by selecting proper structure rotational symmetry.
Photonic resonators with hybrid standing-traveling waves
Authors: Zhong Q. , Zhao H. , Feng L. , Busch K. , Ozdemir S.K. , El-Ganainy R.
Published: August 2022

We introduce a new class of photonic resonators with resonant modes that feature hybrid standing-travelling waves.
Multimode dynamics in an anomalous-dispersion fiber laser
Authors: Wu Yuhang , Sidorenko Pavel , Wise Frank W.
Published: August 2022

Spatiotemporal mode-locking in a laser with anomalous dispersion is observed. Experimental results are compared to numerical simulation, which show strong temporal breathing.
Second-order nonlinear optics in CMOS silicon
Authors: Heydari David , Cătuneanu Mircea , Ng Edwin , Mishra Jatadhari , Hamerly Ryan , Gray Dodd J. , Jankowski Marc , Fejer Martin M. , Mabuchi Hideo , Jamshidi Kambiz
Published: August 2022

We demonstrate electric-field-induced second-harmonic generation from 2.4 μm to 1.2 μm in 3 μm-thick silicon ridge waveguides integrated with alternating p-n diodes. Second-harmonic generation as a function of fundamental wavelength tuning is characterized.
Multimode Mamyshev Oscillator
Authors: Haig Henry , Sidorenko Pavel , Dhar Anirban , Choudhury Nilotpal , Sen Ranjan , Christodoulides Demetrios , Wise Frank W.
Published: August 2022

Spatiotemporal mode-locking (STML) is demonstrated in a Mamyshev Oscillator. We observe a variety of STML states with different degrees of spatiotemporal coupling. The design allows some control over the multimode output beam profile.
4-GW Few-Cycle Visible Pulse Generation via Fiber Mode Mixing
Authors: Piccoli R. , Brown J. M. , Jeong Y.-G. , Rovere A. , Zanotto L. , Gaarde M. B. , Légaré F. , Couairon A. , Travers J. C. , Morandotti R. , Schmidt B. E. , Razzari L.
Published: August 2022

Starting from 175-fs-long pulses at 1035 nm, we directly generate 20 μJ, 4.6 fs visible pulses through the nonlinear mixing between the spatial modes of a 3-m-long Ar-filled hollow-core fiber, without any pulse post-compression.
Ultra-High-Q Multi-Resonant Metasurface using Plasmonic Lattice in Inhomogeneous Medium
Authors: Saad Bin-Alam M. , Zahirul Alam M. , Dolgaleva Ksenia , Boyd Robert W.
Published: August 2022

We demonstrate excitation of guided lattice resonances inside a semiconductor thin-film in a inhomogeneous metasurface enabled by a lossy plasmonic lattice reso-nanances with a record Q-factor value over 10,000.
Second-order transient photo-induced reflectivity changes for retrieval of plasmonic nanostructures’ dynamics
Authors: Hershkovitz D. , Arieli U. , Sinha S. S. , Suchowski H. , Cheshnovsky O.
Published: August 2022

By utilizing a novel experimental pump-probe method, we measure simultaneously the first- and second-order transient reflectivity in plasmonic nanostructures. We find that the additional information imposes strong constraints on the interpretation of the ultrafast dynamics.
Thermally Reconfigurable Nonlocal Metalenses
Authors: Malek Stephanie C. , Tsai Cheng-Chia , Yu Nanfang
Published: August 2022

We experimentally demonstrate a thermally-controlled wavefront-shaping nonlocal metasurface on a simple device platform.
1T-TaS2 based dynamically tunable plasmonic metasurface
Authors: Li Weijian , Naik Gururaj V.
Published: August 2022

We demonstrate a dynamically tunable plasmonic metasurface enabled by light-tunable optical constants of a quantum material - 1T-TaS2. We observe a relative reflectance change of 10% under low-intensity incoherent illumination.
Transmission-Reflection Terahertz Spatial Light Modulator Using Electrically Tunable Dual-Mode Metamaterial
Authors: Lee Wonwoo , Jo Hyunwoo , Kang Moon Sung , Lee Hojin
Published: August 2022

Transmission-reflection terahertz spatial light modulator is introduced using electrically tunable dual-mode metamaterial. Simultaneous transmissive and reflective imaging technique for differential respective objects was demonstrated using single SLM with high accuracy compared to real object.
Dependence of a direct THz driven Stark effect on the energy band alignment in heterostructure Quantum Dots
Authors: Gollner Claudia , Jutas Rokas , Kreil Dominik , Dirin Dmitry N. , Boehme Simon C. , Baltuška Andrius , Kovalenko Maksym V. , Pugžlys Audrius
Published: August 2022

We report on direct ultrafast electro-absorption switching in colloidal CdSe/CdS core/shell quantum dots driven by intense THz pulses without a field enhancing structure, and suggest a route to optimize electro-absorption modulators with respect to the energy band alignment of the heterostructure material.
Tunable Table-Top X-Rays from Tilted Van Der Waals Crystals
Authors: Pramanik Nikhil , Huang Sunchao , Duan Ruihuan , Boothroyd Chris , Liu Zheng , Wong Liang Jie
Published: August 2022

We theoretically predict and experimentally demonstrate unprecedented versatility in free electron-driven X-ray sources based on van der Waals (vdW) materials. By controlling the crystal tilt, we broaden the accessible X-ray photon range by over 100%.
Restoration of Gas Dynamics on Laser Filamentation at High Repetition Rates
Authors: Koulouklidis Anastasios D. , Lanara Christina , Fedorov Vladimir Yu. , Tzortzakis Stelios
Published: August 2022

We demonstrate that thermal effects limiting femtosecond laser filamentation in gases can be addressed using a simple gas replenishment method. This enables high average power filamentation applications like THz sources.
Free-electron-driven X-ray caustics from strained van der Waals materials
Authors: Shi Xihang , Kurman Yaniv , Shentcis Michael , Wong Liang Jie , de Abajo F. Javier García , Kaminer Ido
Published: August 2022

We show that X-ray caustics and specifically X-ray Airy beams can be created from free-electron interactions with strained van der Waals materials.
Atomic Floquet Physics Revealed by Free Electrons
Authors: López Eduardo Arqué , di Giulio Valerio , de Abajo F. Javier García
Published: August 2022

We theoretically investigate the ability of free electrons to probe the nonlinear Floquet dynamics of atoms under intense illumination. We observe multiple features in the electron energy-loss spectra associated with electron-photon exchanges and Floquet resonances.
Superscattering empowered by the physics of bound states in the continuum
Authors: Valero Adrià Canós , Shamkhi Hadi K. , Kupriianov Anton S. , Tuz Vladimir R. , Bobrovs Vjaceslavs , Kivshar Yuri S. , Shalin Alexander S.
Published: August 2022

We propose and verify experimentally a novel mechanism for achieving superscattering from subwavelength dielectric resonators empowered by the physics of bound states in the continuum.