bluuebunny/crossref_metadata_2025 huggingface dataset:
Generation of spatial photon entanglement from lithium niobate nonlocal metasurfaces
Authors: Ma Jinyong , Zhang Jihua , Parry Matthew , Cai Marcus , Morales Rocio Camacho , Xu Lei , Neshev Dragomir N. , Sukhorukov Andrey A.
Published: August 2022

We propose and demonstrate experimentally, for the first time to our knowledge, that strongly enhanced generation of spatially entangled photon pairs can be achieved from metasurfaces supporting nonlocal double resonances at the signal and idler wavelengths.
Photonic Integrated Full-Color Holograms for Visible Light Based on Meta-Waveguides
Authors: Ding Yimin , Zhang Lidan , Chen Xi , Duan Yao , Rahman Md Tarek , Ni Xingjie
Published: August 2022

We experimentally demonstrate photonic integrated visible full-color meta-holograms based on guided wave-driven metasurfaces with complete phase-and-amplitude control capability. Our lightweight and compact meta-holograms can be potentially used for virtual/augmented/mixed reality near-eye displays.
An Eigenchannel Theory for Super-Resolution Sensing with a Randomly Scattering Analyzer
Authors: Patel Justin A. , Luo Qiaoen , Webb Kevin J.
Published: August 2022

It has been established that a randomly scattering analyzer can give increased sensitivity to a changing incident field. We propose an explanation using random matrix theory and an eigenvalue decomposition of the transmission matrix.
3D Imaging Using Extreme Dispersion in Optical Metasurfaces
Authors: Lach Rosemary , Tan Shiyu , Li Weijian , Prasad Ciril S. , Yang Frank , Boominathan Vivek , Zhao Xuan , Veeraraghavan Ashok , Naik Gururaj V.
Published: August 2022

We exploit strong chromatic dispersion of metasurfaces by combining it with computational imaging to enable compact, single-shot, large field-of-view, and passive 3D imaging. We employ a dielectric metasurface with interleaved RGB meta-elements in this demonstration.
High Harmonic Generation Driven by Quantum Light: General Formalism and Extended Cutoff
Authors: Gorlach Alexey , Tsur Matan Even , Birk Michael , Krüger Michael , Rivera Nicholas , Cohen Oren , Kaminer Ido
Published: August 2022

We find that high harmonic generation strongly depends on the photon statistics of the driving field. Specifically, squeezed light exhibits a strongly extended cutoff relative to classical light, creating high harmonics at far greater efficiency.
Hidden Four-Mode Entanglement in a Single-pass Stimulated FWM
Authors: Celis Rauĺ L. R. , Guerrero A. Montaña , Nirala G. , Meirelles T. L. , Nussenzveig P. A. , Martinelli M. , Marino A. , Florez H. M.
Published: August 2022

We present a hidden entanglement between four-modes generated by stimulated FWM. Theoretically, we show the violation of DGCZ inequality for different sideband bipartitions. Experimentally we present previous results of the auto-homodyne detection and the asymmetry in the sidebands.
Generation of Squeezed Light from Non-Degenerate Backwards Four-Wave Mixing in Warm Rubidium
Authors: DiMario Matthew T. , Zhao Jie , Zhou Zhifan , Anderson Brielle E. , Jones Kevin M. , Lett Paul D.
Published: August 2022

We report the generation of squeezed light from phase conjugation using backwards four-wave mixing in warm rubidium vapor. We observe a squeezing bandwidth of ~3MHz and achieve 1dB of intensity difference squeezing at 1MHz.
Hot-Band Absorption Can Mimic Entangled Two-Photon Absorption
Authors: Wilson Ryan N. , Mikhaylov Alexander , Parzuchowski Kristen M. , Mazurek Michael D. , Camp Charles H. , Stevens Martin J. , Jimenez Ralph
Published: August 2022

While searching for entangled two-photon absorption in LDS798, we instead observe fluorescence signals originating from hot-band absorption. This process could lead to overestimating entangled two-photon absorption cross sections by several orders of magnitude.
Cryogenic Optical Biasing of a Superconducting Nanowire Single Photon Detector with a Photodiode
Authors: Thiele Frederik , Hummel Thomas , Protte Maximilian , Bartley Tim J.
Published: August 2022

We present a method to provide the bias current for an SNSPD via the photocurrent of a photodiode at 0.8K. This offers the prospect for noise reduction, heat load reduction, and bias current pulsing.
Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale
Authors: Chew Y. , Tomita T. , Mahesh T. P. , Sugawa S. , de Léséleuc S. , Ohmori K.
Published: August 2022

We observed a nanosecond-scale dynamics between two single atoms trapped in optical tweezers separated by ~ 1 µm and excited to Rydberg state with picosecond laser pulses. This opens the path for ultrafast quantum computation.
Experimental Realization of the Kicked Aubry-André-Harper Hamiltonian
Authors: Shimasaki Toshihiko , Kondakci H. Esat , Prichard Max , Pagett Jared , Bai Yifei , Dotti Peter , Cao Alec , Lu Tsung-Cheng , Grover Tarun , Weld David M.
Published: August 2022

We report an experimental study investigating transport phenomena of ultracold atoms loaded in a primary optical lattice and periodically-kicked with an incommensurate optical lattice. We observe signatures of an extended multifractal phase.
Meta-Holograms for Optical Trapping of Cold Atoms
Authors: Huang Xiaoyan , Yuan Weijun , Will Sebastian , Yu Nanfang
Published: August 2022

We propose metasurface holograms as a platform to efficiently and faithfully generate designer optical traps for cold atoms.
Evidence for Collective Vibrational Quantum Coherence in Spontaneous Raman Scattering
Authors: Velez Santiago Tarrago , Vento Valeria , Pogrebna Anna , Galland Christophe
Published: August 2022

We measure Stokes–anti-Stokes coincidence under two-pulse excitation of a molecular liquid in the regime of spontaneous Raman scattering. We observe quantum beats that are signatures of vibrational quantum coherence across billions of molecules.
Focusing free-electron radiation with source-embedded metalenses
Authors: Karnieli Aviv , Roitman Dolev , Liebtrau Matthias , Tsesses Shai , van Nielen Nika , Kaminer Ido , Arie Ady , Polman Albert
Published: August 2022

We experimentally study simultaneous generation and focusing of free-electron radiation by a metalens, and explore theoretically metasurface lenses showing polarization control. Our work paves the way towards versatile and tunable free-electron metasurface light sources.
Exciton-Enhanced Light Scattering in Atomically-Thin Metasurfaces
Authors: Guarneri Ludovica , Li Qitong , Song Jung-Hwan , Brongersma Mark L. , van de Groep Jorik
Published: August 2022

We demonstrate temperature-dependent and dynamic control over light scattering by exciton resonances in atomically-thin optical elements by carving them directly out of monolayer WS2. Using electrostatic ion-liquid gating we dynamically manipulate the material’s exciton resonance.
Single-shot characterization of two-photon distinguishability with dielectric metasurfaces
Authors: Zhang Jihua , Ma Jinyong , Li Neuton , Sukhorukov Andrey A.
Published: August 2022

We propose and fabricate a static dielectric metasurface grating that enables single-shot characterization of the distinguishability between two photons in multiple degrees of freedom including time, spectrum, and polarization.
Metaphotonic Color-Routing Nanostructures for Sub-micron Scale CMOS Image Sensors
Authors: Lee Sangyun , Roh Sookyoung , Park Hongkyu , Lim Minwoo , Ahn Sungmo , Choo Hyuck , Yun Seokho
Published: August 2022

We design color-routing nanostructures that can spectrally guide light into a Bayer array. To demonstrate, we fabricated 1.0-0.5 um pixel Bayer arrays composed of TiO2 nanoposts and imaged the color-routing focal plane under white light illumination.
Generation of Light Transverse Spin with a Vectorial Field Controlling Metasurface
Authors: Terekhov Pavel , Rahman Md Tarek , Ding Yimin , Zhang Xingwang , Ni Xingjie
Published: August 2022

We demonstrate the direct generation of focused transverse spin of light with a metasurface fully controlling the vectorial properties of the transmitted light field through sub-wavelength pixelized manipulation of phase, polarization, and amplitude independently.
Outcoupling Hyperbolic Modes from Aligned Carbon Nanotube Films
Authors: Jerome Bryant , Prasad Ciril S. , Doumani Jacques , Dewey Oliver S. , Baydin Andrey , Pasquali Matteo , Kono Junichiro , Gao Weilu , Alabastri Alessandro , Naik Gururaj V.
Published: August 2022

Aligned carbon nanotube films make an excellent hyperbolic material platform in the infrared. Here, we experimentally demonstrate the presence of high-k modes in aligned carbon nanotube films and outcouple them to free-space via gratings.
Revisiting Single-Particle Lineshapes in a Perovskite Nanoplatelet Ensemble
Authors: Liu Albert , Cundiff Steven T. , Nagamine Gabriel , Zagonel Luiz F. , Almeida Diogo B. , Padilha Lazaro A. , Bonato Luiz G. , Nogueira Ana F.
Published: August 2022

We study CsPbI3 perovskite nanoplatelets using 2D coherent spectroscopy at cryogenic temperatures. Their homogeneous lineshapes are revealed despite the presence of ensemble inhomogeneous broadening, which inform the determining factors in their transition linewidths.
Terahertz Shockwave Spectroscopy: Probing Free Electrons in a Narrow-Band Semiconductor
Authors: Tenne Ron , Fischer Peter , Fitzky Gabriel , Bossini Davide , Leitenstorfer Alfred
Published: August 2022

Separating the contribution of free and bound charge carriers is a fundamental challenge in pump-probe spectroscopy. We present a novel optical-pump broadband-terahertz-probe technique that addresses free electrons specifically by capturing the full electron plasma feature.
Attosecond core-level spectroscopy reveals the flow of excitation in a material between light, carriers and phonons
Authors: Sidiropoulos T.P.H. , Di Palo N. , Rivas D.E. , Severino S. , Reduzzi M. , Nandy B. , Bauerhenne B. , Krylow S. , Vasileiadis T. , Danz T. , Elliott P. , Sharma S. , Dewhurst K. , Ropers C. , Joly Y. , Garcia K. M. E. , Wolf M. , Ernstorfer R. , Biegert J.
Published: August 2022

We use attosecond core-level X-ray spectroscopy to disentangle the spectral and dynamical signatures of energy conversion pathways between photons, charge carriers and the lattice in graphite with attosecond precision and across a picosecond range.
Non-Hermitian Skin Effect in Laser Arrays
Authors: Liu Yuzhou G. N. , Hemmatyar Omid , Christodoulides Demetrios N. , Khajavikhan Mercedeh
Published: August 2022

We report on the first realization of the Hatano-Nelson model in photonics by using an array of active unidirectional resonators that exhibit asymmetric nearest neighbor couplings. Non-Hermitian skin effect and laser phase locking is observed.
Loading short pulses into long lifetime cavities
Authors: Hinney Jakob , Dave Utsav D. , Molina Andres Gil , Ji Xingchen , Lipson Michal
Published: August 2022

We demonstrate the loading of very short optical pulses into a high-Q cavity with linewidth much narrower than the pulse frequency envelope. We show that loading into the cavity is significantly enhanced if the pulse is combined with a cw-field, thus altering the pulse frequency profile to better match the cavity profile.
Optical Energy-difference Conservation in a Synthetic Anti-PT Symmetric System
Authors: Park Sebae , Lee Dongjin , Park Kyungdeuk , Choi Youngsun , Yoon Jae Woong , Shin Heedeuk
Published: August 2022

We create an optical APT-symmetric system in the synthetic frequency do-main using a conventional fiber without intrinsic gain/loss and observed the optical energy-difference conservation. Our results provide a robust framework connecting non-Hermitian physics with nonlinear interactions.
Generation and all-optical measurement of few-cycle vacuum squeezing in lithium niobate nanophotonics
Authors: Nehra Rajveer , Sekine Ryoto , Ledezma Luis , Guo Qiushi , Gray Robert M. , Roy Akradev , Marandi Alireza
Published: August 2022

We demonstrate 4.2 dB (∼11 dB inferred) of few-cycle vacuum squeezing over more than 25 THz of bandwidth in lithium niobate nanophotonics enabling practical paths towards scalable photonic quantum information systems with THz clock rates.
On-chip Reconfigurable Entangled Photon-pair Sources for Quantum Parallel Processing
Authors: Zhang Liang , Cui Chaohan , Fan Linran
Published: August 2022

We performed the generation and manipulation of the optical high-dimensional hyper-entanglement based on the on-chip reconfigurable Sagnac configuration. Our work provides the critical step for the efficient parallel processing of quantum information with integrated photonics.
Propagation-Invariant Two-Photon Coincidence Patterns Induced by Polarization-Mediated Artificial Gauge Fields
Authors: Ehrhardt Max , Dittel Christoph , Heinrich Matthias , Szameit Alexander
Published: August 2022

We construct artificial gauge fields in waveguide lattices with customized birefringence and experimentally demonstrate that, for a net phase of π, two-photon interference patterns remain static during photon propagation in square lattices.
Versatile quantum enabled telecom receiver
Authors: Jabir M.V. , Annafianto N. Fajar R. , Burenkov I. A. , Battou A. , Polyakov S. V.
Published: August 2022

We demonstrate a time-resolving quantum receiver at a telecom wavelength. We show state discrimination errors below the shot noise limit for legacy, novel telecommunication protocols with long alphabets.
Correlated optical-spin coherence spectroscopy on telecom-wavelength epitaxial rare-earth qubits
Authors: Huang Yizhong , Gupta Shobhit , Tomm Natasha , Warburton Richard J. , Zhong Tian
Published: August 2022

We perform correlated optical-spin coherence spectroscopy on epitaxial rare-earth qubits in an oxide thin film. Single Er3+ ions are optically addressed and used to probe coupling to two-level-systems as a simultaneous optical-spin decoherence mechanism.
Statistics of multiphoton photoemission under coherent and non-classical illumination
Authors: Heimerl Jonas , Mikhaylov Alexander , Meier Stefan , Höllerer Henrick , Kaminer Ido , Chekhova Maria , Hommelhoff Peter
Published: August 2022

We investigate experimentally how the photon statistics of light gets imprinted on multiphoton electron emission from needle tips. Coherent and bright squeezed vacuum light lead to entirely different electron statistics, matching with a quantum-optical analysis.
Conversion of unpolarized to fixed-polarization light with topology-optimized metasurfaces
Authors: Li Neuton , Zhang Jihua , Neshev Dragomir N. , Sukhorukov Andrey A.
Published: August 2022

We design and fabricate topologically optimized metasurfaces that can achieve almost complete conversion of unpolarized light to the same pure polarization in several outputs, exceeding the fundamental 50% transmission limit of conventional polarizers.
Inverse Design of Oblique Angle Metaoptics for Mid-Infrared Wavelength and Polarization Splitting
Authors: Foo Ian , Roberts Gregory , Ballew Conner , Faraon Andrei
Published: August 2022

Practical implementations of volumetric nanophotonics require acceptance of oblique angles of incidence. We use an inverse design approach to optimize metaoptic devices for central angles up to 15° with minimal performance loss.
Minimal memory differentiable FDTD for inverse design
Authors: Tang Ruijie , Lim Soon Wei Daniel , Yin Xinghui , Capasso Federico
Published: August 2022

We construct a reverse mode automatic differentiation FDTD that reduces the memory requirement, a typical bottleneck, by two orders of magnitude, and employ it to produce meta-atoms with specified phase responses and group delays.
Ultra-Fast Scattering Matrix Solver for Disordered Media
Authors: Lin Ho-Chun , Wang Zeyu , Hsu Chia Wei
Published: August 2022

Using the Schur complement scattering analysis (SCSA) method, we accelerate the scattering matrix computation for large-scale disordered media by many orders of magnitude and realize full-wave simulations of classical and quantum coherent backscattering.
Simulation of large-area metasurfaces with a distributed transition matrix method
Authors: Skarda Jinhie , Trivedi Rahul , Su Logan , Ahmad-Stein Diego , Kwon Hyounghan , Han Seunghoon , Fan Shanhui , Vučković Jelena
Published: August 2022

We present a method to accurately compute simulations and gradients of large-area metasurfaces. Our distribution strategy gives a linear simulation time reduction proportional to number of compute nodes, opening the door to accurate large-scale inverse-design.
Inverse Design of Free-Form Metasurfaces with Deep Neural Networks
Authors: Gahlmann Timo , Tassin Philippe
Published: August 2022

We show that the free-form inverse design of nanophotonic matasurfaces can be solved with a modified CGAN machine learning method that balances the accuracy of desired optical properties with experimental feasibility.
Diffractive networks form cascadable all-optical NAND gates
Authors: Luo Yi , Mengu Deniz , Ozcan Aydogan
Published: August 2022

A cascadable, all-optical NAND gate based on diffractive networks is presented. The resulting NAND design was cascaded by projecting the output field of one diffractive gate onto another, all-optically performing logical operations, e.g., a half-adder.
Observation of the spinful higher-order topology in multilayer Td-WTe2
Authors: Lee Jekwan , Kwon Jaehyeon , Lee Eunho , Park Jiwon , Cha Soonyoung , Watanabe Kenji , Taniguci Takashi , Jo Moon-Ho , Choi Hyunyong
Published: August 2022

We propose evidence that the multilayer Td-WTe2 is a higher-order topological insulator. By measuring the Kerr effect using the graphene/WTe2 heterostructure, we revealed the existence of spinful topological hinge states protected by the time-reversal symmetry.
Nearly-Resonant Crystalline-Phononic Coupling in Quantum Spin Liquid Candidate CsYbSe2
Authors: Pai Yun-Yi , Marvinney Claire E. , Liang Liangbo , Xing Jie , Scheie Allen , Puretzky Alexander A. , Halasz Gabor , Li Xun , Sefat Athena S. , Parker David , Lindsay Lucas , Lawrie Benjamin J.
Published: August 2022

We study crystal field-phonon interactions in quantum spin liquid candidates CsYbSe2 with variable temperature, polarization, and magnetic-field dependent Raman microscopy. Complex interplay between phonon modes and CEF modes is observed in real space.
Bright zero-phonon transition from point defect-stacking fault complexes in silicon carbide nanowires
Authors: Lee Jin Hee , Jeon Woong Bae , Moon Jong Sung , Lee Junghyun , Han Sang-Wook , Bodrog Zoltán , Gali Adam , Lee Sang-Yun , Kim Je-Hyung
Published: August 2022

We investigate a new type of quantum emitters, point defect-stacking fault complexes in silicon carbide nanowires. It record-high bright single-photon emission in silicon carbide and strong zero-phonon transition at even room temperature.
Bright, narrow-linewidth color centers in Silicon Carbide-on-Insulator microresonators
Authors: Lukin Daniil M. , Guidry Melissa A. , Yang Joshua , Mishra Sattwik Deb , Ghezellou Misagh , Abe Hiroshi , Ohshima Takeshi , Ul-Hassan Jawad , Vuckovic Jelena
Published: August 2022

An outstanding challenge for color center-based quantum information processing is the integration of optically-coherent, stable emitters into a scalable thin-film photonics platform. Here, we show bright, narrow optical emission from silicon vacancy defects in 4H-silicon carbide-on-insulator microdisk resonators.
Strong Phase Modulation of Single Photons with Surface Acoustic Wave Cavities
Authors: Wang Zixuan , Imany Poolad , DeCrescent Ryan A. , Boutelle Robert C. , McDonald Corey A. , Autry Travis M. , Mirin Richard P. , Silverman Kevin L.
Published: August 2022

We demonstrate modulation of the light scattered from a quantum emitter enhanced by surface acoustic wave cavities etched into the surface of GaAs, with the half-wave voltage V
π
as low as 44 mV.
Optical Two-Dimensional Coherent Spectroscopy of Cold Atoms
Authors: Liang Danfu , Zhu Yifu , Li Hebin
Published: August 2022

We report the first implementation of optical two-dimensional coherent spectroscopy of cold atoms. The experiment opens a new avenue to study many-body interac-tions and correlations in cold atoms/molecules.
Dissipative Kerr solitons in a warm atomic vapor system
Authors: Zhou Zhifan , Zhao Jie , DiMario Matthew , Anderson B. E. , Jones Kevin M. , Lett Paul D.
Published: August 2022

Dissipative Kerr solitons generated by four-wave mixing in hot rubidium atoms within a phase conjugate resonator are presented. The solitons are tunable with pump detuning and laser power and exhibit Turing rolls and dark-soliton formation.
Periodic Localization in Homogeneous Photonic Lattices with Temporal Coupling Gradients
Authors: Steinfurth A. , Weidemann S. , Kremer M. , Heinrich M. , Szameit A.
Published: August 2022

We theoretically describe and experimentally realize periodic spatial wave packet recurrence in homogeneous lattices under the action of a temporal coupling gradient. We observe these dynamics in photonic mesh lattices.
Theory and Applications of Temporal Reflection in a Dispersive Medium
Authors: Zhang Junchi , Donaldson William R. , Agrawal Govind P.
Published: August 2022

An optical pulse can be reflected at a moving boundary of refractive index change formed by a strong pump pulse. We discuss the theory and possible applications of this effect.
All-optical Kerr Polarization Controller
Authors: Moroney N. , Del Bino L. , Zhang S. , Woodley M. T. M. , Hill L. , Wildi T. , Wittwer V. J. , Südmeyer T. , Oppo G.-L. , Vanner M. , Brasch V. , Herr T. , Del’Haye P.
Published: August 2022

We demonstrate an all-optical polarization controller in a high-finesse Fabry-Pérot microresonator. Kerr-nonlinearity-induced symmetry breaking splits linear polarized input light into left- and right-circular polarized components, enabling all-optical polarization control with mW-level threshold.
In-fiber Nonlinear Silicon Photonics
Authors: Peacock A. C.
Published: August 2022

This paper reviews recent advances in the application of silicon core fibers for nonlinear photonics. Particular focus will be placed on novel device designs that benefit from the fiber geometry.
Role of Phase-matching on Raman-enhanced FWM in Silicon Core Fibers
Authors: Sun Shiyu , Huang Meng , Wu Dong , Shen Li , Hawkins Thomas W. , Ballato John , Gibson Ursula J. , Mashanovich Goran Z. , Peacock Anna C.
Published: August 2022

Raman-enhanced four-wave mixing is investigated in silicon core fibers that have been tapered to control the phase-matching conditions. The large estimated conversion efficiencies (~1 dB) will be useful for high-power amplification of telecom signals.
Dispersion in Reflection and Emission of Dye Molecules Strongly Coupled to Surface Plasmon Polaritons
Authors: Chowdhury Md G. R. , Howard S. , Khabir K. , Noginov M. A.
Published: August 2022

We have studied coupling of dye molecules with surface plasmon polaritons in the Kretschmann geometry and found that the coupling strength and the multi-segment dispersion curves in reflection are strongly different from those in emission.
Excitation of Surface Plasmon Polaritons by Space Time Wave Packets
Authors: Krishna Krishangi , Diouf Mbaye , Burrow Joshua A. , Odessey Rachel , Toussaint Kimani C.
Published: August 2022

Current nanoplasmonic applications are limited due to surface plasmon polariton (SPP) attenuation. Here, we experimentally demonstrate additional means to excite a larger area of SPPs by expanding the extent of 1D Space-Time wave packets.
A Bayesian approach to nanoparticle characterization
Authors: Lukens Joseph M. , Passian Ali
Published: August 2022

We introduce and numerically validate a Bayesian method for plasmonic nanometrology. Applicable to any system described by a scattering cross section, our approach quantifies uncertainty automatically and enables model comparison through Bayes factors.
Mode-selective imaging and control of nano-plasmonic near-fields
Authors: Lourenço-Martins Hugo , Sivis Murat , Geese Andre , Harvey Tyler R. , Danz Thomas , Sarhan Radwan M. , Bargheer Matias , Feist Armin , Ropers Claus
Published: August 2022

We demonstrate how ultrafast electron microscopy can be used to quantitavely analyse the modal structure of plasmonic nano-resonators and to coherently manipulate the optical near-field by multicolor laser pumping scheme - enabling the generation of complex beating patterns between different plasmonic modes.
Reconfigurable Metasurfaces Based on Low-Loss Phase Change Material Sb2Se3
Authors: Wang Mengyun , Lee June Sang , Aggarwal Samarth , Farmakidis Nikolaos , Tan James , Bhaskaran Harish
Published: August 2022

In this study, we propose reconfigurable metasurfaces based on a low-loss chalcogenide phase-change material, antimony triselenide (Sb2Se3). The developed metasurfaces exhibit tunable focusing properties along with transformation of the Sb2Se3 between amorphous and crystalline states.
Terahertz Generation and Acceleration
Authors: Kärtner Franz X.
Published: August 2022

Laser based multi-cycle THz generation by difference frequency mixing has been pushed to optical to THz conversion efficiencies close to 1%. This opens up the possibility to implement THz driven electron and X-ray sources.
Photon Pair Generation from Bound States in the Continuum in Nonlinear Metasurfaces
Authors: Santiago-Cruz Tomás , Gennaro Sylvain D. , Mitrofanov Oleg , Vabishchevich Polina P. , Addamane Sadhvikas , Bethke Don , Reno John , Brener Igal , Chekhova Maria V.
Published: August 2022

We report, for the first time, the generation of non-degenerate photon pairs via spontaneous parametric down-conversion driven by Bound States in the Continuum resonances in semiconductor metasurfaces.
Deterministic double DKS generation in an 88 GHz single-mode Si3N4 microring with controlled spacing
Authors: Liu Hao , Wang Wenting , Yu Mingbin , Kwong Dim-Lee , Wong Chee Wei
Published: August 2022

Here we report double soliton spectrum generation in an 88 GHz tapered Si3N4 microring deterministically with dual-pump. The mode-locking nature is verified by both amplitude noise and FROG measurement. The deterministic azimuthal angle of the double solitons is directly related to the spacing between pump mode and avoided mode crossing.
Observation of Giant Five-Photon Upconversion Luminescence in Subwavelength AlGaAs Resonators
Authors: Zalogina Anastasia , Tonkaev Pavel , Tripathi Aditya , Lee Hoo-Cheol , Carletti Luca , Park Hong-Gyu , Kruk Sergey , Kivshar Yuri
Published: August 2022

We design and fabricate individual subwavelength AlGaAs nanoantennas supporting Mie resonances in the mid-infrared spectral range. Near the resonant modes, we observe five-photon upconversion photoluminescence in the visible spectral range.
Second-Harmonic Generation from Metasurfaces with Spatially Engineered Nonlinearity
Authors: Fedotova Anna , Younesi Mohammadreza , Arslan Dennis , Pertsch Thomas , Staude Isabelle , Setzpfandt Frank
Published: August 2022

We demonstrate resonant metasurfaces with spatially engineered nonlinearity based on periodically poled lithium niobate. Such spatial control of the nonlinearity unlocks additional degrees of freedom for controlling the properties of second-harmonic radiation from metasurfaces.
An Invariance Property of Dynamic Media in Diffusive Cavities
Authors: Wu Ruitao , Dogariu Aristide
Published: August 2022

We expand Cauchy’s theorem and demonstrate an invariance property for dynamic media. We demonstrate that details of scattering processes do not affect the relationship between measured correlation times and the intrinsic time-scale of medium’s dynamics.
Delayed luminescence from mesoscopic scattering media
Authors: Batarseh Mahed , Shen Zhean , Dogariu Aristide
Published: August 2022

We demonstrate experimentally and numerically that many-body interactions between nanosized colloidal particles lead to subradiant regimes where the lifetime of emission long after the excitation ceases depends on the average particle-particle distance.
Lasers based on time-dependent gain media
Authors: Sloan Jamison , Rivera Nicholas , Soljačić Marin
Published: August 2022

We present a new gain concept based on time-modulated quantum systems. We show “Floquet lasers” incorporating this gain enable phenomena such as single-threshold coherent multimode lasing and even lasing without traditional population inversion.
Constructing active metasurfaces based on phase transition of vanadium dioxide
Authors: Peng Ru-Wen , Shu Fang-Zhou , Wang Jia-Nan , Xiong Bo , Qi Dong-Xiang , Fan Ren-Hao , Wang Mu
Published: August 2022

It is known that most of metastructures cannot dynamically tune the optoelectric properties once their structures are fabricated. Naturally, developing active materials and dynamically tunable devices becomes especially desired and necessary. In this work, we have made several active metasurfaces and dynamically-tunable metadevices based on phase change material VO2, which includes: i) the active nanoantennas from thermal to electrical tuning; ii) the electrically-driven tunable broadband waveplates, and iii) the electrically-tuned flexible active absorbers. The investigations here can be applied in constructing unique dynamically-tuning metamaterials, and are expected to promote the further development of new-generation active optoelectronic devices.
Chalcogenide phase-change material-based, ultrathin, all-dielectric tunable mid-infrared metamaterial perfect absorber
Authors: Avrahamy Roy , Ishaaya Amiel A. , Auslender Mark
Published: August 2022

Ultrathin, all-dielectric, metamaterial design based on an asymmetrical optical micro-/nanocavity, enclosing a 10 nm thick Ge2Sb2Te5 photoabsorber film, is inversely optimized for perfect tunable absorption in the mid-infrared. The absorption can be actively/geometrically pre-/post-fabrication spectrally tuned.
A long-lived spin qubit in an optically active semiconductor quantum dot
Authors: Zaporski Leon , Bodey Jonathan H. , Shofer Noah , Manna Santanu , Jackson Daniel M. , Silva Saimon Covre da , Haeusler Urs , Rastelli Armando , Gangloff Dorian A. , Atatüre Mete , Le Gall Claire
Published: August 2022

We report on the first s pin-control e xperiments i n o ptically active GaAs/AlGaAs quantum dots. Using dynamic decoupling, we retain a quantum superposition for up to 105 μs, a hundred-fold improvement over the state-of-the-art.
First-order all-optical spectral phase transition from coupled optical parametric oscillators
Authors: Roy Arkadev , Langrock Carsten , Fejer Martin , Marandi Alireza
Published: August 2022

We demonstrate first-order p hase t ransition i n c oupled o ptical parametric oscillators corresponding to an abrupt transition from degenerate to non-degenerate oscillation at a critical cavity detuning which can be utilized for enhanced sensing, and information processing.
Subradiant Directional Memory in Cooperative Scattering
Authors: Shen Zhean , Dogariu Aristide
Published: August 2022

Using ensembles of coupled point-like scatterers, we demonstrate long-living, backscattering directional memory in spatially bounded random media. This counter-intuitive phenomenon emerges from subradiant quasi-modes located in the vicinity of medium’s interface.
Ultrafast infrared nano-thermometry: imaging thermal transport at semiconducting heterointerfaces
Authors: Johnson Samuel C. , Hu Shiqian , Nishida Jun , Chabal Peter A. , Li Baowen , Raschke Markus B.
Published: August 2022

We perform ultrafast pump-probe nano-spectroscopic imaging of WSe2-SiO2 interfaces. From transient phonon softening as a local probe of substrate temperature, we resolve heterogeneity in ps thermalization and quantify interfacial boundary conductance.
A Reconfigurable Source of Entangled Frequency bins
Authors: Clementi M. , Sabattoli F. A. , El Dirani H. , Bergamasco N. , Gianini L. , Youssef L. , Petit-Etienne C. , Pargon E. , Liscidini M. , Sciancalepore C. , Galli M. , Bajoni D.
Published: August 2022

We present a highly-efficient integrated reconfigurable source of entangled frequency bins. Leveraging the flexibility offered by the silicon photonics platform, we demonstrate the on-chip generation of all the main two-qubit quantum states.
Scalable Control of Spin Quantum Memories in a Photonic Integrated Circuit
Authors: Golter D. Andrew , Clark Genevieve , Dandachi Tareq El , Krastanov Stefan , Zimmermann Matthew , Greenspon Andrew , Wan Noel , Raniwala Hamza , Chen Kevin , Li Linsen , Leenheer Andrew , Dong Mark , Gilbert Gerald , Eichenfield Matt , Englund Dirk R.
Published: August 2022

Using magnetic field gradients and optimally shaped microwave pulses, we demonstrate selective control of color center spin qubits in a diamond micro-chiplet coupled to a photonic integrated circuit, yielding a platform for scalable qubit control.
Remarkable Improvement of Atomic-Frequency-Comb Memory Efficiency by Comb Transfer Method in 167Er3+:Y2SiO5 under Zero Magnetic Field
Authors: Yasui Shoichiro , Hiraishi Masaya , Ishizawa Atsushi , Omi Hiroo , Inaba Tomohiro , Xu Xuejun , Kaji Reina , Adachi Satoru , Tawara Takehiko
Published: August 2022

We demonstrated atomic frequency comb (AFC) quantum memory in 167Er3+:Y2SiO5 under zero magnetic field by using optical frequency comb (OFC), which enables to quickly and easily produce AFCs with high efficiency over a wide bandwidth.
Ultra-Large Cross-Phase Modulation for Room-Temperature Photon-Number-Resolving Detection
Authors: Zhao Yun , Okawachi Yoshitomo , Gaeta Alexander L.
Published: August 2022

We propose and analyze a room-temperature photon-number-resolving detection scheme based on cascaded sum-frequency generation. We measure an effective |n2| of 6×10−12 cm2/W in lithium niobate, which is 600x larger than the intrinsic value.
Demonstration of Generalised Multi-path Wave-particle Duality on a Quantum Photonic Chip
Authors: Chen Xiaojiong , Deng Yaohao , Liu Shuheng , Pramanik Tanumoy , Mao Jun , Bao Jueming , Zhai Chonghao , Dai Tianxiang , Yuan Huihong , Guo Jiajie , Fei Shao-Ming , Huber Marcus , Tang Bo , Yang Yan , Li Zhihua , He Qiongyi , Gong Qihuang , Wang Jianwei
Published: August 2022

We report the multi-path delayed-choice experiment on a large-scale integrated silicon photonic chip. Wave- and particle-nature in generalised form are characterised experimentally and the generalisation of Bohr’s multi-path duality relation is demonstrated.
Sympathetic Cooling of Nanoparticles Levitated in a Paul Trap
Authors: Bykov Dmitry S. , Dania Lorenzo , Goschin Florian , Northup Tracy E.
Published: August 2022

We demonstrate three-dimensional sympathetic cooling of the center-of-mass motion of a silica nanoparticle. The nanoparticle is coupled to a feedback-cooled particle in an ion trap. We investigate limits of the process and discuss optimum strategies.
Physics-Informed Machine Learning of Optical Modes in Composites
Authors: Ghosh Abantika , Elhamod Mohannad , Bu Jie , Lee Wei-Cheng , Karpatne Anuj , Podolskiy Viktor A.
Published: August 2022

We present machine learning techniques that incorporate physics into the training process. We demonstrate, on example of predicting light propagation in multilayered composites, that physics-informed models are significantly more robust than their black box counterparts.
Anisotropic Dirac cone and slow edge states in a photonic Floquet lattice
Authors: Li Yuan , Sun Xiankai
Published: August 2022

We have proposed a photonic Floquet lattice that supports anisotropic Dirac cones and topological edge states. Under the anisotropic condition, these slow edge states exhibit robustness against disorder, which enable new applications in slow-light systems.
Magnetic Quadrupole Excitation in Meta-atoms Using Structured Light
Authors: Pires Danilo Gomes , Terekhov Pavel , Gao Jiannan , Chandra Nitish , Litchinitser Natalia
Published: August 2022

We investigate how structured light can enhance and alter the excitation of high-order multipole moments in silicon nanocubes due to its complex field gradient.
Quantifying Randomness in a Gain-Switched Laser Diode
Authors: Lovic V. , Marangon D. G. , Lucamarini M. , Yuan Z. , Shields A. J.
Published: August 2022

Using numerical modeling and experimental measurements, we quantify the amount of phase noise randomness produced by a gain-switched laser diode. This has applications in QKD and QRNG where phase randomization is essential to security.
Measurement-Device-Independent Quantum Key Distribution of Frequency-Nondegenerate Photons
Authors: Xue Rong , Liu Xu , Huang Yidong , Zhang Wei
Published: August 2022

Measurement-device-independent quantum key distribution (MDI-QKD) of frequency-nondegenerate photons was proposed and demonstrated based on a frequency-domain beam splitter, which simplified the implementation of MDI-QKD and provided network functions on the relay node.
Photon-assisted interlayer transport in transition-metal dichalcogenide heterostructures
Authors: Han Jeong Woo , Han Peize , Liu Yijing , Barbara Paola , Murphy Thomas E. , Mittendorff Martin
Published: August 2022

Heterostructures of two-dimensional materials are highly interesting for opto-electronic applications as they provide a fast charge transfer between the layers. Here we present photocurrent measurements at photon-energies far below the involved band gaps.
Photonic Topological States: the role played by symmetry and nonlinearity
Authors: Hu Zhichan , Bongiovanni Domenico , Xia Shiqi , Jukić Dario , Song Daohong , Makris Konstantinos G. , Morandotti Roberto , Buljan Hrvoje , Chen Zhigang
Published: August 2022

We discuss our recent demonstrations of nonlinear control of topological states in cw-laser-written photonic lattices of different symmetries, including manipulation of edge and corner states in higher-order topological insulators and dynamically emerging nonlinear topological phenomena.
Sub-symmetry protected topological states in photonic lattices
Authors: Wang Ziteng , Wang Xiangdong , Hu Zhichan , Bongiovanni Domenico , Cheng Ruoqi , Wang Yihan , Tang Liqin , Song Daohong , Jukić Dario , Morandotti Roberto , Chen Zhigang , Buljan Hrvoje
Published: August 2022

We theoretically and experimentally demonstrate the concept of sub-symmetry in symmetry-protected topological systems, wherein the original symmetry is partially broken so bulk topological invariant no longer exists, but some edge states are still topologically protected.
Time-resolved second-order coherence of an integrated biphoton frequency comb
Authors: Myilswamy Karthik V. , Seshadri Suparna , Liu Junqiu , Kippenberg Tobias J. , Weiner Andrew M. , Lukens Joseph M.
Published: August 2022

We perform time-resolved second-order coherence characterization of multiple photon resonances from an integrated 40.5 GHz silicon nitride microring, using electro-optic modulation to observe interference effects otherwise hidden by detector jitter.
Bayesian Optical Heterodyne Tomography
Authors: Chapman Joseph C. , Lukens Joseph M. , Qi Bing , Pooser Raphael C. , Peters Nicholas A.
Published: August 2022

We introduce a complete workflow for Bayesian quantum state tomography of generic continuous-variable states. We also summarize experimental results applying this workflow to the tomographic reconstruction of thermal and coherent states of light.
Scalable Preparation and Measurement of 2N-dimensional Time-bin States in (2N+1) Mutually Unbiased Bases
Authors: Ikuta Takuya , Akibue Seiseki , Yonezu Yuya , Honjo Toshimori , Takesue Hiroki , Inoue Kyo
Published: August 2022

We propose (2
N
+1) mutually unbiased basis measurement for 2
N
-dimensional time-bin states, where the number of devices scales logarithmically with the dimension. We observed average error of only 3.8% for four-dimensional phase bases.
Can electron–hole plasma induce an excitonic ARPES signature?
Authors: Patterson Cody , Kira Mackillo
Published: August 2022

The presented systematic many-body computations demonstrate that angle-resolved photoemission spectra can exhibit an excitonic signature even without the formation of excitons.
Ultrafast Non-Collinear Pump-Probe Spectroscopy of Intersubband Polariton-Polariton Scattering
Authors: Knorr M. , Manceau J.-M. , Mornhinweg J. , Nespolo J. , Biasiol G. , Tran N.L. , Malerba M. , Goulain P. , Lafosse X. , Carusotto I. , Lange C. , Colombelli R. , Huber R.
Published: August 2022

Non-collinear multi-THz pump-probe spectroscopy reveals the intersubband polariton dynamics in a dispersive microcavity. Selective pumping of the lower polariton at finite in-plane momentum leads to coherent polariton-polariton scattering towards the ground state.
Experimental Hamiltonian Reconstruction via Polarimetry of High-order Sidebands in a Semiconductor
Authors: Costello J. B. , O’Hara S. D. , Wu Q. , Pfeiffer L. N. , West K. W. , Sherwin M. S.
Published: August 2022

Accurate knowledge of the parameters of effective Hamiltonians of quasiparticles is critical for designing the next generation of quantum devices. We present a method to reconstruct quasiparticle Hamiltonians of semiconductors by polarimetry of high-order sidebands.
Tailoring interlayer exciton-phonon hybridization in van der Waals heterostructures
Authors: Yong C.-K. , Merkl P. , Liebich M. , Hofmeister I. , Berghäuser G. , Malic E. , Huber R.
Published: August 2022

We introduce proximity-controlled strong-coupling between Coulomb correlations and lattice dynamics in neighboring van der Waals materials, creating new electrically neutral hybrid eigenmodes. We directly trace their spectral fingerprints using phase-locked few-cycle mid-infrared pulses.
Fractal photonic topological insulators
Authors: Heinrich Matthias , Biesenthal Tobias , Maczewsky Lukas , Yang Zhaoju , Kremer Mark , Segev Mordechai , Szameit Alexander
Published: August 2022

We present the first experimental observation of a fractal topological insulator and demonstrate how the self-similar properties of the Sierpinski gasket systematically enhance the transport of light in its topologically protected edge states.
Topological Mode-Locked Laser with Intracavity Couplings
Authors: Leefmans Christian , Parto Midya , Williams James , Dutt Avik , Nori Franco , Marandi Alireza
Published: August 2022

We experimentally realize a topological actively mode-locked laser by coupling the pulses with intracavity delay lines. Our work reveals a new regime of nonlinear topological photonics and has potential applications to short-pulse lasers.
Floquet topological quadrupole in photonic crystals protected by space-time symmetry
Authors: Jin Jicheng , He Li , Lu Jian , Mele Eugene J. , Zhen Bo
Published: August 2022

We present that a space-time screw symmetry can be preserved in periodically driven optical nonlinear materials. Such symmetry can protect a high-order topological phase, which is demonstrated with a photonic crystal.
Localization by Disordered Gauge Fields
Authors: Saiji Shruti Jayaprakash , Tschernig Konrad , Maczewsky Lukas , Szameit Alexander , Perez-Leija Armando , Bandres Miguel A.
Published: August 2022

We show that it is possible to induced Anderson localization in an optical lattice with no disorder in their couplings or index of refraction but by a disordered artificial gauge field generated by periodic driving.
Exotic Topological Edge-states and Bloch Oscillation along the Frequency Dimension in Modulated Waveguide Arrays
Authors: Wu Xiaoxiong , Wang Luojia , Li Guangzhen , Cheng Dali , Yu Danying , Zheng Yuanlin , Yakovlev Vladislav V. , Chen Xianfeng , Yuan Luqi
Published: August 2022

We demonstrate exotic edge states in two-dimensional spatial-frequency space constructed by one-dimensional modulated waveguide arrays, which exhibits a distinct topological protected one-way transmission along spatial boundary, and Bloch oscillation along the frequency dimension.
Topologically Protected Entanglement Emitters
Authors: Dai Tianxiang , Ao Yutian , Bao Jueming , Mao Jun , Chi Yulin , Fu Zhaorong , You Yilong , Chen Xiaojiong , Zhai Chonghao , Tang Bo , Yang Yan , Li Zhihua , Yuan Luqi , Gao Fei , Lin Xiao , Thompson Mark G. , O’Brien Jeremy L. , Li Yan , Hu Xiaoyong , Gong Qihuang , Wang Jianwei
Published: August 2022

We report topologically-protected entanglement emitters, that emit topological Einstein-Podolsky-Rosen state and multiphoton entangled state from a plug-and-play silicon-photonic chip in ambient conditions. The device emulating a photonic anomalous Floquet insulator allows the generation of four-photon topological entangled states at nontrivial edge modes.
Nonlinear Scattering of Dissipative Solitons in a Kerr Microresonator
Authors: Qureshi Pierce C. , Ng Vincent , Azeem Farhan , Trainor Luke S. , Schwefel Harald G. L. , Coen Stephane , Erkintalo Miro , Murdoch Stuart G.
Published: August 2022

We show that nonlinear scattering between a linear wave and a soliton in a Kerr microresonator generates an idler comb at a frequency determined by the linear wave detuning, allowing for spectral manipulation of the soliton comb.
Angular Transmission Response of Symmetry-Breaking All-Dielectric Metasurfaces
Authors: Levanon Nir , Indukuri S.R.K. Chaitanya , Frydendahl Christian , Engelberg Jacob , Bar-David Jonathan , Mazurski Noa , Levy Uriel
Published: August 2022

We study numerically and experimentally symmetry-breaking dielectric metasurfaces and found that the angular response of the localized magnetic dipole resonance for a 1-fold symmetry is blue-shifted, while for a 2-fold symmetry it is red-shifted.
Metamaterial integrated VOx microbolometer for dualband infrared polarization detection
Authors: Jiang Shun , Yi Fei
Published: August 2022

We designed and fabricated a metamaterial-integrated vanadium oxide microbolometer for dualband infrared polarization detection. The experimental spectral and polarization responses agree with the design. Our work paved the way towards multi-spectral infrared polarization imaging detector.
Vortex Beam Generation Directly from a Fiber Laser Incorporating Plasmon Metasurface
Authors: Wang Chuanshuo , Gui Lili , Zhang Tian , Ding Fei , Bozhevolnyi Sergey I. , Xu Kun
Published: August 2022

We propose and demonstrate the high-quality orbital-angular-momentum beam generation directly from a compact metasurface-assisted vortex fiber laser around the wavelength of 1030 nm.
Broadband achromatic metalens design based on artificial neural network
Authors: Wang Feilou , Geng Guangzhou , Wang Xueqian , Li Junjie , Bai Yang , Li Jianqiang , Wen Yongzheng , Li Bo , Sun Jingbo , Zhou Ji
Published: August 2022

We used the backpropagation neural network to design a high performance achromatic metalens at visible range. Experimental demonstration showed that the fabricated achromatic metalens can operate from 420 to 640 nm without the polarization dependence.
Nonlinear compression towards high-energy single-cycle pulses by cascaded focusing and compressing
Authors: Tsai Ming-Shian , Liang An-Yuan , Tsai Chia-Lun , Lai Po-Wei , Lin Ming-Wei , Chen Ming-Chang
Published: August 2022

By cascaded focusing and compressing, we demonstrated 50-fold postcompression of carrier-envelope-phase-stabilized, 157 fs and 1.34 mJ pulses at 1030 nm down to 3.1 fs (single-cycle) with a pulse energy of 0.98 mJ.
Approaching the motional ground state of a 10 kg object
Authors: Whittle Chris , Hall Evan D. , Dwyer Sheila , Mavalvala Nergis , Sudhir Vivishek , LIGO Detector Group
Published: August 2022

Thermal decoherence impedes preparing massive objects in quantum states. Using feedback cooling, we place the center-of-mass motion of a 10kg oscillator in a state with phonon occupation 10.8, bringing it from room temperature to 77 nK.
Ultra-high-Q torsional nanomechanics for quantum experiments and precision measurement
Authors: Agrawal Aman R. , Condos Charles , Pluchar Christian , Pratt Jon , Schlamminger Stephan , Wilson Dalziel
Published: August 2022

We show that torsion modes of strained nanoribbons can have ultrahigh Q-factors, are naturally soft-clamped, and can be mass-loaded without changing their Q. We leverage these insights to realize sub-SQL optical lever measurements and chip-scale torsion pendula with μHz damping rates.
Quantum Interface Based on a Non-Hermitian Magnon-Photon Beamsplitter
Authors: Wang Xingchang , Wang Jianmin , Siviloglou Georgios A. , Chen J. F.
Published: August 2022

We report an atom-light beamsplitter-type interface, in which flying photons and stored atomic coherence can be transformed reversibly. The degree of Hermiticity of this interface can alter the atom-photon quantum interference from bosonic to fermion-like.