bluuebunny/crossref_metadata_2025 huggingface dataset:
Single-photon lidar used in extreme imaging scenarios
Authors: Buller Gerald S. , McCarthy Aongus , Maccarone Aurora , Tobin Rachael , Wade Ewan , Steinlehner Ulrich , Halimi Abderrahim , Altmann Yoann
Published: August 2021

The high detection sensitivity and timing resolution afforded by single-photon lidar has made this approach a candidate for a range of challenging applications such as imaging in turbid underwater scenarios and free-space imaging through obscurants.
Multiple pulse-mode Bell states heralded via entanglement swapping
Authors: Merkouche Sofiane , Thiel Valerian , Davis Alex O.C. , Smith Brian J.
Published: August 2021

A novel scheme is presented for simultaneous heralding of multiple distinct pulse-mode entangled states via frequency-resolved Bell-state measurements. The heralded states are verified using spectral measurements and two-photon interference.
Gauge Field Optics using Magneto-Electric Media
Authors: Chandra Nitish , Litchinitser Natalia M.
Published: August 2021

A moving dielectric material at low velocities produces the same effect for light as vector potential for charged particles. We investigate the interaction of light with vortices, which can be reproduced using stationary magneto-electric media.
3D Speckle Intensity Correlations in Propagation of Optical Vortex Beams
Authors: Acevedo Cristian Hernando , Batarseh Mahed , Dogariu Aristide
Published: August 2021

We developed an analytical model for 3D spatial cross-correlations in speckles fields generated by scattering of structured beams. Specific properties identified for different types of optical vortices can guide their use in remote sensing applications.
Reconfigurable nanophotonic circuitry enabled by direct-laser-writing
Authors: Gehring Helge , Blaicher Matthias , Grottke Thomas , Pernice Wolfram H. P.
Published: August 2021

Passive integrated nanophotonic circuits mass-produced by lithographic means offer limited customizability after nanofabrication. Here we present an approach for reconfiguring nanophotonic circuitry after lithography by using direct-laser-writing for application-specific tasks.
State Tomography of Space-Time “Entangled” Ultrafast Optical Pulses
Authors: Shen Yijie , Zdagkas Apostolos , Pidishety Shankar , Papasimakis Nikitas , Zheludev Nikolay I.
Published: August 2021

We introduce state tomography as a quantitative methodology for the characterization of ultrafast optical pulses and report on its application to the propagation of isodiffracting single-cycle toroidal pulses and non-isodiffracting wideband Laguerre-Gauss beams.
Modification of emission rate in broadband deterministic micropillar cavities
Authors: Ginés Laia , Moczała-Dusanowska Magdalena , Hošák Radim , Ježek Miroslav , Höfling Sven , Schneider Christian , Predojevic Ana
Published: August 2021

We investigate the efficient generation of photons in broadband deterministic quantum dot-micropillar cavities. The quantum-dot cavity coupling leads to Purcell factors above 2 for both exciton and biexciton photons.
Achromatic flat lenses: do they really improve imaging performance?
Authors: Engelberg Jacob , Levy Uriel
Published: August 2021

Despite the many achromatic flat lenses demonstrated in recent years, improvement in imaging performance under ambient illumination compared to conventional flat lenses has not been shown. Why is it so? Here we explain.
High-purity free-electron momentum states prepared by three-dimensional optical phase modulation
Authors: Feist Armin , Yalunin Sergey V. , Schäfer Sascha , Ropers Claus
Published: August 2021

We demonstrate a laser-based and femtosecond-switchable inelastic electron beam splitter. Coherent optical phase modulation of 200-keV electrons at a thin electron-transparent membrane prepares a high-purity three-dimensional momentum superposition state, characterized in energy and momentum space.
Tunable magneto-optics in hyperbolic nanoparticles
Authors: Kuttruff Joel , Gabbani Alessio , Petrucci Gaia , Zhao Yingqi , Iarossi Marzia , Pedrueza-Villalmanzo Esteban , Parracino Antonietta , Strangi Giuseppe , Dmitriev Alexandre , Brida Daniele , De Angelis Francesco , Pineider Francesco , Maccaferri Nicolo
Published: August 2021

We study magnetic circular dichroism of type II hyperbolic nanoparticles. Experiments and numerical simulations reveal a broadband response that is analytically described via coupling of electric and magnetic dipole modes with a static magnetic field.
Strong Coupling between ADT Molecules and a 2D Nanohole Ag-Grating
Authors: Tanyi E. K. , Giesbers G. , Van Schenck J. D. B. , Puro G R. L. , Ostroverkhova O. , Cheng L.-J.
Published: August 2021

We demonstrate strong coupling between ADT molecules and surface plasmon polaritons supported by a 2D-nanohole Ag-gratings; observed splitting in the dispersion curve at specific k- vectors, corresponded to multiples of the grating's lattice vectors.
Gas dynamics effect on laser filamentation THz sources at high repetition rates
Authors: Lanara Christina , Koulouklidis Anastasios D. , Daskalaki Christina , Fedorov Vladimir Yu. , Tzortzakis Stelios
Published: August 2021

We report on the impact of laser pulse repetition rate on two-color filamentation based terahertz sources. A 50% decrease on the terahertz energy is observed when the repetition rate increases from 0.6 to 6 kHz.
Perfect soliton crystal in an AlN microresonator
Authors: Weng Haizhong , Liu Jia , Afridi Adnan Ali , Li Jing , Dai Jiangnan , Zhang Yi , Lu Qiaoyin , Donegan John F. , Guo Weihua
Published: August 2021

Near octave-spanning perfect soliton crystal (1150-2100 nm) is successfully demonstrated in an AlN microring resonator, at an on-chip power of 250 mW. A measured 60-fs ultra-short pulse confirms the high coherence of the soliton crystal.
Quantitative analysis by nanoelectromechanical photothermal infrared spectroscopy with picogram sensitivity
Authors: Luhmann Niklas , Pliessnig Raphael , Lafleur Josiane P. , Schmid Silvan
Published: August 2021

We demonstrate an advanced approach for quantitative spectral analysis of volatile chemical compounds with nanoelectromechanical infrared spectroscopy. We present high resolution infrared spectra of caffeine with a sensitivity of 7 pg obtained with SiN trampoline resonators.
Fabrication of polymeric grating layers and their integration into optoelectronic devices using dip-pen nanolithography
Authors: Zohar Moshe , Avrahamy Roy , Milgrom Benny , Fradkin Zeev , Auslender Mark
Published: August 2021

Two-dimensional optical nanostructures grating based on polymers were fabricated using dip-pen nanolithography. We investigated the influence of both the ink composition and dwell-time. Prototypes of phase masks were manufactured, and their main characteristics were analyzed.
Photon-pair generation in silica microbubble resonators
Authors: Challinor Ross , Mosley Peter J.
Published: August 2021

We present progress towards silica microbubble whispering gallery mode resonators as viable sources of high-quality, narrow-band single photon pairs at widely- separated wavelengths through spontaneous four-wave mixing.
Detection techniques for Orbital Angular Momentum states
Authors: Suprano Alessia , Giordani Taira , Polino Emanuele , Zia Danilo , Spagnolo Nicoló , Sciarrino Fabio , Innocenti Luca , Ferraro Alessandro , Paternostro Mauro
Published: August 2021

We experimentally demonstrate a machine-learning-based protocol to char- acterize orbital angular momentum states. Moreover, a more accurate formalization of the state engineering process allows increasing both its performance and that of a quantum state discrimination process.
Large Range Athermalisation of Multi-Section Surface Grating Lasers for DWDM-PONs
Authors: Mickus Dovydas , McKenna Robert , Donegan John F
Published: August 2021

A multi-section, high order surface grating laser is continuously athermalised with wavelength variation of only ±0.003 nm (± 375 MHz) from 20 to 102 °C. In discontinuous mode this range is extended to 116 °C.
Witnesses of coherence and dimension from multiphoton indistinguishability tests
Authors: Giordani Taira , Esposito Chiara , Hoch Francesco , Carvacho Gonzalo , Spagnolo Nicolò , Sciarrino Fabio , Brod Daniel J. , Galvão Ernesto F.
Published: August 2021

We experimentally demonstrate the validity of witness tests on suitable inter- ferometers designed for the purpose. Our findings confirm the effectiveness of this novel family of witness tests for capturing the quantum properties of high-dimensional systems.
Wavelength-dependent modification of silicon by femtosecond pulses
Authors: Richter Roland A. , Kalashnikov Vladimir , Sorokina Irina T.
Published: August 2021

Numerical analysis of non-paraxial sub-µJ ultra-short pulse propagation at 1550–2350 nm up to NA=0.25 shows that longer wavelengths are advantageous to avoid surface damage for low-depth bulk silicon modifications
Towards Sub-10-fs Pulses at 1 MHz Repetition Rate From an Optical Parametric Amplifier in the Visible Spectral Range
Authors: Kleinert Sven , Tajalli Ayhan , Zuber David , Andrade José R.C. , Morgner Uwe
Published: August 2021

We present a compact optical parametric amplification system operating in the visible spectral range. It delivers pulses with a Fourier-transform-limited pulse duration below 7 fs at 1 MHz repetition rate with an energy larger than 2 µJ.
Modelling Propagation Loss of PECVD Silicon Nitride Strip Waveguides: Evaluation andAssessment of Width Dependency
Authors: Buchberger Anton , Pulko Jozef , Morecroft Deborah , Basso Omar , Kraft Jochen , Bergmann Alexander
Published: August 2021

Measurements of the width-dependent propagation loss of 250 nm thick silicon nitride strip waveguides at 850 nm wavelength indicate good agreement with the theoretical model. The waveguides were fabricated by plasma-enhanced chemical vapor deposition (PECVD).
Ultrafast currents in two dimensional hexagonal semiconductors
Authors: Oliaei Motlagh S. A. , Apalkov V. , Stockman M.
Published: August 2021

In two-dimensional hexagonal semiconductors, we show that an applied ultrafast strong optical pulse results in a finite conduction band population and generates both longitu- dinal and transverse electric currents during and after the pulse.
Controlled Spectral Shape and Enhanced Photoluminescence in Perovskite by Hyperbolic Metamaterial Nanocavity Arrays
Authors: Chaitanya Indukuri S. R. K. , Kessel Amit , Frydendahl Christian , Edrei Eitan , Halder Saswata , Mazurski Noa , Levy Uriel
Published: August 2021

We demonstrate experimentally nano-scale hyperbolic metamaterial cavities and use them to tune the spectral shape (e.g. Fano lineshape and spectral splitting) and enhance the photoluminescence from an organic- inorganic perovskite. ~80 fold enhancement is observed.
Integrated Ultra-Narrow Linewidth Ultra-Stable Brillouin Lasers and their Application to PNT Applications
Authors: Blumenthal Daniel J.
Published: August 2021

We describe a new class of photonic integrated ultra-narrow linewidth, ultra-stable Brillouin laser that enables precision spectrally-pure lasers at the chip-scale and their use in atomic clocks, quantum sensing, and optical gyros.
Tracking of individual Nano-objects inside Hollow Core Fibers on the example SARS-CoV-2
Authors: Förster Ronny , Wieduwilt Torsten , Nissen Mona , Schmidt Markus A
Published: August 2021

We tracked unlabeled SARS-CoV-2 viruses inside a hollow core optical fiber by elastic light scattering. The simultaneous confinement of particles and light leads to intense scattering, long trajectories and consequently a precise nanoparticle tracking analysis.
High contrast reporter cleavage detection for enhancing porous silicon sensor sensitivity
Authors: Layouni Rabeb , Dubrovsky Michael , Bao Mengdi , Chung Haejun , Du Ke , Boriskina Svetlana V. , Weiss Sharon M. , Vermeulen Diedrik
Published: August 2021

We show the first experimental implementation of biosensing using high contrast reporter cleavage detection (HCRCD). HCRCD makes use of dramatic signal amplification caused by cleavage of high-contrast nanoparticle labeled reporters instead of the capture of low-index bio- molecules.
High-Power, Narrow-Band PPLN Non-Resonant Optical Parametric Oscillator
Authors: Wang Li , Chen Weidong , Schirrmacher André , Büttner Edlef , Boyko Andrey A. , Ye Ning , Zhang Ge , Petrov Valentin
Published: August 2021

We report on power scaling of a PPLN non-resonant optical parametric oscillator reaching an average output power of 8.63 W at 35 kHz with spectral bandwidths not exceeding 2 nm for both signal and idler.
Controllable Pure Dephasing Pathways in Single Site- Controlled Pyramidal Quantum Dot – Nanocavity System
Authors: Huang Jiahui , Liu Wei , Miranda Alessio , Dwir Benjamin , Rudra Alok , Kapon Elyahou , Wong Chee Wei
Published: August 2021

We demonstrate the controllable exciton-cavity mode interaction mediated by pure dephasing in a single site-controlled quantum dot-nanocavity system. With varying detuning, Purcell enhanced dynamics and phonon-assisted cavity feeding sequentially dominate the exciton-cavity mode interaction.
A Deep Mixture Density Network for On-Demand Inverse Design of Thin Film Reflectors
Authors: Unni Rohit , Yao Kan , Zheng Yuebing
Published: August 2021

We report a mixture density neural network trained for on-demand inverse design of thin film reflectors, able to retrieve accurate designs and independently reproduce conventional design methods based on physical principles.
Silicon Photonic Optical-Electrical-Optical Modulator Neuron Verilog-A Model
Authors: Rubio Rivera Hector A. , van Niekerk Matthew , Preble Stefan F.
Published: August 2021

An Optical-Electrical-Optical silicon photonic neuron is modeled using Verilog-A. The neuron realizes nonlinear activation without electrical amplification. The model (using experimental data) enables the implementation of scalable deep silicon pho- tonic neural networks.
Fiber Interferometers for Time-domain Quantum Optics
Authors: MacLellan Benjamin , Roztocki Piotr , Islam Mehedi , Reimer Christian , Fischer Bennet , Sciara Stefania , Helsten Robin , Jestin Yoann , Cino Alfonso , Chu Sai T. , Little Brent , Moss David J. , Kues Michael , Morandotti Roberto
Published: August 2021

A novel method for stabilizing fiber interferometers based on frequency- and polarization-multiplexing enables unambiguous phase retrieval, long-term stability, and phase-independent performance. These capabilities allow for precise manipulation of time-bin quantum states in a low-complexity setup.
Experimental measurement of phase distributions in disordered systems
Authors: Mondal Sandip , Kumar Randhir , Kamp Martin , Khare Kedar , Mujumdar Sushil
Published: August 2021

The phase distributions of Anderson localized modes are measured in 2D disordered photonic crystals, using single-shot interferograms. The distribution closely follows the theoretical prediction.
Sampling sub-THz phase noise in frequency microcombs via fiber interferometry
Authors: Wang Wenting , Jiang Xinghe , Vinod Abhinav Kumar , Su Xinzhou , Yang Jinghui , Yu Mingbin , Kwong Dim-Lee , Wong Chee Wei
Published: August 2021

We characterized the phase jitter of frequency microcomb with μrad phase resolution through fiber interferometry. The measured phase fluctuation PSD and integrated phase jitter are 2.588 mrad2/Hz at10 kHz and 0.126 rad at 100 μs.
Reflective Fourier Ptychographic Microscopy Using the Scheimpflug Scheme
Authors: Hasanzade Mojde , Hussain Nazabat , Breiby Dag Werner , Akram Muhammad Nadeem
Published: August 2021

We report a new approach for reflection mode Fourier ptychographic microscopy using the Scheimpflug geometry. Successful recovery of a USA resolution target is shown with 2NAb synthetic aperture.
High-Power Broadband Single-Mode ASE Source Near 2 μm Based on Thulium-doped Fiber
Authors: Sun Y. , Khan F. , Ng J. , Nicholson J.W.
Published: August 2021

We demonstrate a thulium doped fiber amplified spontaneous emission sources pumped by a Raman fiber laser at 1579 nm and 1693 nm. A single mode, maximum output power of 550 mW at the center wavelength of 1880 nm with FWHM of 140 nm has been achieved.
Dual-comb gas detection using single optical reference error correction
Authors: Yu Haoyang , Zhou Qian , Li Xinghui , Wang Xiaohao , Wu Guanhao , Ni Kai
Published: August 2021

We present a simplified single optical reference error correction method for dual-comb gas detection. Standard deviation of measured H13C14N transmittance spectrum is merely 1% compared to conventional method over 4 THz spectral range.
OSBERT: Towards Megahertz Scan Rates Using Optical Sampling By Electronic Repetition-Rate Tuning
Authors: Bajek D. , Cataluna M. A.
Published: August 2021

We present OSBERT – Optical Sampling By Electronic Repetition-Rate Tuning. OSBERT is a novel optical sampling technique whose potential is shown to approach highly competitive megahertz scan rates, using a single mode-locked two-section laser diode.
Another ultra-fast phenomena, superluminal propagation of pulse, and its application
Authors: zhang Zihua , zhang Huaan , zhang Su , Zhong Zhiying
Published: August 2021

Another kind of ultra fast phenomenon, superluminal transmission of light puls, ewas proposed, its velocity can faster than the infinite that was proved in theory and experiment based on two kinds of epistemology and world, both deeply effects on Science and technology and open new application of Laser discussed briefly.
Exploring field correlation measurements on the electromagnetic ground state in non-local regime
Authors: Settembrini Francesca Fabiana , Herter Alexa Marina , Benea-Chelmus Ileana-Crsitina , Lindel Frieder , Scalari Giacomo , Faist Jérȏme
Published: August 2021

In the terahertz range, electric field correlations on the electromagnetic ground state have been measured exploiting electrooptic sampling and femtosecond pulses. We investigate the dependence of these correlations on the probed space-time volume.
Bending-Insensitive Broadband-Guiding Anti-Resonant Hollow-Core Fiber at Two-Micron
Authors: Hassan Muhammad Rosdi Abu , Wang Yuxi , Chang Wonkeun
Published: August 2021

We report a bending-insensitive anti-resonance hollow-core fiber that guides in the two-micron region. The fiber can be bent to a radius as small as 2 cm with the bending-induced loss of <0.53 dB/m.
On-Chip Universal and Scalable Silicon-Based Mode-Order Converters by Depositing Tapered Metal Layers
Authors: Xu Yin , Liu Luping , Hu Xin , Dong Yue , Zhang Bo , Ni Yi
Published: August 2021

We develop a universal and scalable silicon-based mode-order conversion scheme that can realize the mode-order conversion from fundamental mode to arbitrary higher-order mode in a compact size (conversion length <3 µm) with bandwidth > 200 nm.
Isolating solitons from the resonant continuous wave by using nonlinear Fourier transform
Authors: Wang Yutian , Fu Songnian , Zhang Chi , Tang Xiahui , Kong Jian , Lee Ju Han , Zhao Luming
Published: August 2021

Pure solitons are isolated from the resonant continuous wave background arising in a fiber laser by utilizing nonlinear Fourier transform, which is great helpful to investigate the soliton interaction correctly.
Squeezed state generation in a dual-pumped integrated microring resonator: the effects of parasitic processes
Authors: Seifoory H. , Vernon Z. , Mahler D. H. , Menotti M. , Sipe J. E.
Published: August 2021

We theoretically investigate the effects of parasitic quantum nonlinear optical processes on the generation of squeezed light in a dual-pumped integrated microring resonator coupled to a waveguide.
Cryogenic Optical Transitions in 77Se+ Implanted Si for On-Chip Spin-Photon Interfaces
Authors: Sarihan Murat Can , Liu Wei , Huang Jiahui , Tang Ke , McMillan James F. , Goorsky Mark S. , Jiang Hong-Wen , Pomeroy Joshua M. , Wong Chee Wei
Published: August 2021

We examine and verify the mid-infrared transitions of 77Se+ deep donors in Silicon. We aim to use implanted Se ions as nuclear-spin/photon interfaces for on-chip quantum repeater structures.
Valley-Polarization in Biased Bilayer Graphene Using Circularly Polarized Light
Authors: Friedlan Alex , Dignam Marc M.
Published: August 2021

We theoretically examine valley-polarization induced in biased bilayer graphene using circularly polarized light. We find that a very strong valley-polarization can be achieved (> 97%) with careful choice of bias and pulse frequency.
Echoes in unidirectionally rotating moleculesa
Authors: Xu Long , Tutunnikov Ilia , Zhou Lianrong , Lin Kang , Qiang Junjie , Lu Peifen , Prior Yehiam , Averbukh Ilya Sh. , Wu Jian
Published: August 2021

Molecular unidirectional rotation echoes have been induced using a pair of time-delayed polarization-twisted ultrashort laser pulses. The echoes are imaged using Coulomb explosion-based technique, and the experimental findings are supported by a de- tailed theoretical analysis.
Extreme absorption in the bulk of dielectrics with femtosecond Bessel pulses
Authors: Ardaneh Kazem , Meyer Remi , Morel Benoit , Giust Remo , Courvoisier Francois
Published: August 2021

High absorption and high energy density deposition are experimentally measured during illumination of dielectrics by femtosecond Bessel pulses. Using particle-in-cell simulations, we explain this process by resonance absorption on a nanoscale plasma rod.
Group Theory Guided Symmetry Coupling between Cylindrical Vector Beams and Localized Surface Plasmon Resonances
Authors: Xu Bo , Heffernan Brendan M. , Bae Kyuyoung , Siemens Mark , Gopinath Juliet T. , Park Wounjhang
Published: August 2021

This paper reports a rigorous group theoretical method to selectively excite dark mode plasmons of any axially symmetric structures with cylindrical vector beams, based on symmetry analysis of the single V-point cylindrical vector beams basis.
CLONETS-DS – Clock Network Services-Design Study Strategy and innovation for clock services over optical-fibre networks in Europe
Authors: Vojtěch Josef , Altmannová Lada , Smotlacha Vladimír , Velc Radek , Vohnout Rudolf , Schnatz Harald , Liebisch Tara Cubel , Capone Vincenzo , Chiotis Tryfon , Roberts Guy , Vicinanza Domenico , Binczewski Artur , Bogacki Wojbor , Turza Krzysztof , Pottie Paul-Eric , Tuckey Philip , Calonico Davide , Holzwarth Ronald , Sprenger Benjamin , Číp Ondřej , Pravdová Lenka , Řeřucha Šimon , Alonso Javier Díaz , Vidal Eduardo Ros , García Trinidad , Kodet Jan , Schreiber Ulrich , Kusche Jürgen , Meschede Dieter , Schröder Stefan , Stellmer Simon , Nogas Pawel , Urbaniak Robert , Krehlik Przemysław , Śliwczyński Łukasz , Amy-Klein Anne , Quintin Nicolas , Seeds Alwyn , Desruelle Bruno , Lautier-Gaud Jean , Ménoret Vincent , Rabault Martin
Published: August 2021

Long-distance time and frequency transfer methods based on optical fibre links have evolved rapidly in recent years, demonstrating excellent performance for frequency transfer and considerable promise for accurate time transfer. CLONETS-DS is a European Union-funded research and innovation action intended to facilitate the vision of a sustainable, pan-European optical fibre network for precise time and frequency reference dissemination.
Nanoparticle Trapping in Symmetry-breaking System
Authors: Yang Sen , Hong Chuchuan , Jiang Yuxi , Ndukaife Justus
Published: August 2021

We propose an all-dielectric nanotweezer for low laser power optical trapping combined with negligible heating effect. A new way to harness the self-induced back-action (SIBA) force is also presented.
Optoelectronic Readout of STT-RAM Memory Cells Using Plasmon Drag Effect
Authors: Sadri-Moshkenani Parinaz , Khan Mohammad Wahiduzzaman , Islam Md Shafiqul , Shi Dan , Montoya Eric , Krivorotov Ilya , Bagherzadeh Nader , Boyraz Ozdal
Published: August 2021

An optoelectronic readout method for reading the state of STT-RAM cells based on plasmon drag effect is proposed. Our simulations show that the proposed scheme can achieve up to 29.6 Gbit/sec readout speed.
Faithful Simulation of the XY Hamiltonian with Laser Networks
Authors: Honari-Latifpour Mostafa , Miri Mohammad-Ali
Published: August 2021

We introduce a Lyapunov function for a network of dissipatively coupled lasers and show that this cost function reduces to the classical XY Hamiltonian in the large gain limit.
Using Plasma Structures to Control the Polarization of High-Intensity Laser Beams
Authors: Kur Eugene , Lazarow Malcolm , Wurtele Jonathan S. , Divol Laurent , Chapman Thomas , Michel Pierre
Published: August 2021

Overlapped laser beams in plasma interact via the density grating they generate. We demonstrate how to use this phenomenon to control the polarization of high-intensity laser beams that would damage traditional optical elements.
A Deep Learning Approach to Explore the Mutual Coupling Effects in Metasurfaces
Authors: An Sensong , Zheng Bowen , Shalaginov Mikhail Y. , Tang Hong , Li Hang , Zhou Li , Haerinia Mohammad , Dong Yunxi , Agarwal Anuradha Murthy , Rivero-Baleine Clara , Kang Myungkoo , Richardson Kathleen A. , Gu Tian , Hu Juejun , Fowler Clayton , Zhang Hualiang
Published: August 2021

We propose a deep learning approach that predicts the performance of meta-atoms placed among different neighbors. It provides a fast way to explore the impact of mutual coupling to metasurfaces’ performance and conduct further optimizations.
Fabrication of Photonic Crystal Surface Emitting Lasers (PCSELs) by Epitaxial Regrowth
Authors: Reilly Kevin James , Kalapala Akhil , Song Alex , Rotter Thomas , Liu Zhonghe , Renteria Emma , Fan Shanhui , Zhou Weidong , Balakrishnan Ganesh
Published: August 2021

Epitaxial regrowth is investigated as a method of PCSEL fabrication and is compared to non-regrowth methods. The influence of regrowth to photonic crystal morphology is explored and optically pumped and electrically injected devices are demonstrated.
Single-shot Double-pulse Method for Determination of Detonation Energy in Laser Ablation Plasmas
Authors: Skrodzki Patrick J. , Nagel Lauren A. , Finney Lauren A. , Burger Milos , Nawara Robert , Nees John , Jovanovic Igor
Published: August 2021

We demonstrate a novel single-shot approach to determine the detonation energy of laser-induced plasmas. The method employs a double-pulse shadowgraphy scheme coupled with analysis of shock expansion rates using the Sedov blast model.
Emerging Materials Based Electro-Optic Phase Modulators
Authors: Amin Rubab , Maiti Rishi , Khurgin Jacob B. , Sorger Volker J.
Published: August 2021

We conduct an ab-initio analysis of modulator performance based on heterogeneously integrating emerging materials validating a small modal cross section availed by plasmonic modes which enables high-performance operation, physically realized by arguments on charge-distribution.
High-Resolution, High-Sensitivity Time-Stretch Spectroscopy based on Optical Sampling by Cavity Tuning
Authors: Soundararajan Srikamal J. , Duan Lingze
Published: August 2021

We report experimental demonstration of sub-GHz spectral resolution and 10-18-J power sensitivity with a time-wavelength optical sampling spectrometer based on optical sampling by laser cavity tuning.
Edge-Resolved Transient Imaging
Authors: Saunders Charles , Rapp Joshua , Tachella Julián , Murray-Bruce John , Altmann Yoann , Tourneret Jean-Yves , McLaughlin Stephen , Dawson Robin M. A. , Wong Franco N. C. , Goyal Vivek K
Published: August 2021

We demonstrate 2.5-dimensional, 180
◦
field-of-view non-line-of-sight recon- structions of large-scale scenes using time-correlated single-photon detection and pulsed illumination along an arc at a small opening where a vertical wall edge meets a floor plane.
1.23-Tb/s per Wavelength Single-Waveguide On-Chip Optical Interconnect Enabled by Mode-division Multiplexing
Authors: Huang Hanzi , Huang Yetian , He Yu , Chen Haoshuo , Zhang Yong , Zhang Qianwu , Fontaine Nicolas K. , Ryf Roland , Song Yingxiong , Su Yikai
Published: August 2021

We experimentally demonstrate a net capacity per wavelength of 1.23 Tb/s over a single silicon-on-insulator (SOI) multimode waveguide for optical interconnects employing on-chip mode-division multiplexing and 11×11 multiple-in-multiple-out (MIMO) digital signal processing.
25.6a Tbps Pre-compensated Waveform Propagation Using Optical Frequency Comb Synthesizer/Analyzer
Authors: Sultana Nasrin , Tada Hiroaki , Imai Hayate , Shioda Tatsutoshi
Published: August 2021

A scanless dispersion pre-compensation system for an ultrafast 25.6 waveform using multilevel 8-ary amplitude and 32-ary phase modulation was controlled and compensated by a 200 GHz optical frequency comb synthesizer with a 6.4 THz bandwidth.
Dynamic-Widefield-Magnetometry using Nitrogen-Vacancy Defects in Diamond
Authors: Parashar Madhur , Shishir Dasika , Gokhale Alok , Bathla Anuj , Bandyopadhyay Sharba , Saha Kasturi
Published: August 2021

Widefield magnetometers based on nitrogen-vacancy defects in diamond are temporally static requiring few to several minutes of acquisition time. Here, employing per pixel frequency lock-in detection, we demonstrate widefield magnetic field images in few-seconds timescale.
Intelligent breathing dissipative soliton generation utilizing an evolutionary algorithm
Authors: Wu Xiuqi , Peng Junsong , Zeng Heping
Published: August 2021

Breathing dissipative solitons are automatically generated in a mode-locked fiber laser utilizing an evolutionary algorithm. Intelligent control over their parameters is realized including breathing periods, breathing ratios, and the number of breathers.
Femtosecond non-collinear optical parametric oscillator in the visible (VIS-NOPO)
Authors: Mevert Robin , Binhammer Yuliya , Dietrich Christian M. , Andrade R.C. José , Beichert Luise , Binhammer Thomas , Fan Jintao , Morgner Uwe
Published: August 2021

In this work, we present a femtosecond, fast tunable non-collinear optical parametric oscillator (NOPO) pumped by the third harmonic of a Yb-fiber laser. The NOPO covers nearly the complete visible spectral range from 440-720 nm.
The Ultimate Precision of Rangefinders and LiDARs based on Time-of-Flight Measurements
Authors: Donati Silvano , Martini Giuseppe , Pei Zingway , Cheng Wood-Hi
Published: August 2021

We analyze the ultimate timing precision of schemes for time-of-flight measurements with rangefinders and LiDARs, based on short-pulse, sine-wave modulated, and long-pulse techniques, and consider both random and systematic contributions to the total error. When quantum noise of detected photons prevails, the random error is given by a characteristic time of the waveform divided by the square root of detected photons. When the detector is thermal-noise limited, the random error is increased by the square root of the ratio thermal-equivalent power to detected power. The systematic error may become much larger than the random one, but an appropriate choice of parameters can reduce it below the random error.
Enhanced Second Harmonic Generation from a Dielectric Encapsulated Multilayer Gallium Selenide
Authors: Biswas Rabindra , Chatterjee Suman , Deka Jayanta , Advaitha M , Majumdar Kausik , Raghunathan Varun
Published: August 2021

We experimentally demonstrate a simple approach to enhance second-harmonic generation (SHG) from multilayer Gallium Selenide by encapsulating with an optimized thickness of low-index dielectric layers. 46-times enhancement is observed showing good agreement with nonlinear wave propagation simulation.
Temporal Cavity Soliton in an Active Fiber Resonator
Authors: Englebert Nicolas , Arabí Carlos Mas , Parra-Rivas Pedro , Gorza Simon-Pierre , Leo François
Published: August 2021

We demonstrate the existence of temporal solitons in a coherently driven laser, pumped below its lasing threshold. We study how the gain saturation impacts this new localized structure, both theoretically and experimentally.
20-W, 168 fs Yb:CALGO regenerative amplifier with 1-MHz repetition rate
Authors: Wang Geyang , Bai Chuan , Xu Rui , Zheng Li , Lv RenChong , Liu Han , Tian Wenlong , Zhang Dacheng , Zhu Jiangfeng , Wei Zhiyi
Published: August 2021

We report on a 1-MHz repetition rate regenerative amplifier based on single Yb:CALGO crystal. It delivers 168 fs pulses with 20 W average power, centered at 1040 nm with a spectral bandwidth of 11 nm.
Disentangling Charge Transfer, Heat Conduction, and Strain Effects at WS2/Graphene Interface
Authors: Zhang Ruiling , Gan Lin , Zhang Danyang , Wang Zhen , Ning Cun-Zheng
Published: August 2021

Combined micro-photoluminescence and Raman spectroscopies were used to disentangle charge transfer, heat conduction and strain effects at WS2/Graphene interface through pump-power and temperature controls, allowing the first accurate determination of thermal conductance at the interface.
Timing Jitter of Fractal Superconducting Nanowire Avalanche Photodetectors in the 2-Micrometer Wavelength Range
Authors: Xu Liang , Meng Yun , Zou Kai , Hu Nan , Cai Yu , Gyger Samuel , Steinhauer Stephan , Zwiller Val , Hu Xiaolong
Published: August 2021

We developed a femtosecond, mode-locked thulium-doped fiber l aser t o characterize fractal superconducting nanowire single-photon detectors at 1993 nm. The lowest timing jitter was 64.8 ps, which should be compared with 29.2 ps at 1560 nm.
Combining PM-IRRAS with optical imaging techniques for operando studies of CO oxidation
Authors: Rämisch Lisa , Gericke Sabrina , Pfaff Sebastian , Lundgren Edvin , Zetterberg Johan
Published: August 2021

To bridge the pressure gap in heterogeneous catalysis and maximize the gain of operando information, we have combined PM-IRRAS with the imaging techniques SOR and PLIF and measured CO oxidation on a Pd(100) crystal.
Experimental Comparison of Conventional and Femtosecond Optical Tweezers
Authors: Singh Ajitesh , Bandyopadhyay Soumendra Nath , Singh Krishna Kant , Kumar Deepak , Goswami Debabrata
Published: August 2021

Systematic study of conventional and femtosecond optical tweezers demonstrates an interplay of thermal and optical nonlinearity due to tight focusing. Specifically, Brownian motion of the 250nm radius trapped bead is measured using a quadrant photodiode.
PT-symmetric double ridge semiconductor lasers emitting at 980 nm
Authors: Fu Ting , Wang Yufei , Zhou Xuyan , Du Fangling , Fan Jian , Wang Xueyou , Chen Jingxuan , Qi Aiyi , Zheng Wanhua
Published: August 2021

Electrically injected Parity-time (PT)-symmetric double ridge semiconductor laser lasing at 980 nm range is fabricated. The side mode suppression ratio (SMSR) of the spectrum of the laser is 37.97 dB at current of 91 mA.
Cascaded Mach-Zehnder interferometer and ring resonator with MXene for temperature sensing
Authors: Song J. , Zhang M. , Wu Q. , Jiang X. , Zhang H. , Zheng Z.
Published: August 2021

Wdeemonstrate an all-fiber temperature sensor utilizing a cascaded Mach- Zehnder interferometer and ring resonator with MXene Ti3C2T
x
, showing a high conversion efficiency of 0.159 π/°C and sensitivity of 1.03 nm/°C.
Polarization Sensitive Photodetection using Semiconducting Monolayers
Authors: Sankararaman Sreejyothi , Balasubramanian Krishna , Padmanabhan Revathy
Published: August 2021

Localized plasmon resonance in metallic nanoparticles can enable polarization-dependent electric field enhancement. Semiconducting monolayers are used in conjunction with polarization-sensitive plasmonic structures, to maximize the field overlap and promote polarization-sensitive photon detection.
Learning-based cell detection in digital pathology
Authors: Ren Zhenbo , Lam Edmund Y. , Zhao Jianlin
Published: August 2021

In blood testing, knowing the ratio and throughput of blood cells is crucial to help doctors make a clinical diagnosis. Here we propose a deep transfer learning strategy for accurate cell detection for digital pathology.
Influence of Nanoparticle Dimensions on Rabi Splitting Strength
Authors: Lawless Julia , Hrelescu Calin , Elliott Carolyn , Peters Lisanne , McEvoy Niall , Bradley A. Louise
Published: August 2021

Strong coupling was detected between single gold nano-bipyramids and mono-layer MoS2. It was demonstrated that the coupling strength increases with nanoparticle size, even without increasing the number of excitons coupled into the system.
Replica Symmetry Breaking in Brillouin Random Fiber Laser
Authors: Zhang Jilin , Qiu Zenghuan , Xiao Zhelan , Xie Haoran , Jiang Yikun , Pang Fufei , Zhang Liang
Published: August 2021

This paper reported the experimental evidence of replica symmetry breaking in a random fiber laser incorporating nonlinear Brillouin gain and distributed Rayleigh random feedback.
Spectrally Purified Brillouin Random Fiber Laser via Self-tracking Dynamic Fiber Grating
Authors: Qiu Zenghuan , Xiao Zhelan , Zhang Jilin , Xie Haoran , Jiang Yikun , Pang Fufei , Zhang Liang
Published: August 2021

We demonstrated spectral purification of random lasing emission in a Brillouin random fiber laser by employing a self-tracking dynamic fiber grating with unpumped Erbium doped fibers.
Controlling the Extinction Ratio of Microring Resonators by Perovskite Nonlinearity
Authors: Wang Feifan , Zhao Lianfeng , Lee Hwaseob , Xiao Yahui , Li Tiantian , Wang Yixiu , Soman Anishkumar , Kananen Thomas , Hu Xiaoyong , Rand Barry P. , Gu Tingyi
Published: August 2021

We demonstrate a low power all-optical switch in hybrid silicon resonator at room temperature, utilizing exceptionally high nonlinearity in solution integrated perovskite.
Experimental Demonstration of a Practical Bidirectional Multiple Access Scheme for VLC Networking
Authors: Chen Qiguan , Zhang Min , Han Dahai , Zhang Zhiguo , Xu Weishu
Published: August 2021

Experimental demonstration of a practical multiple access scheme for VLC networking with both optical downlink and uplink. System normalized throughput and user access delay were measured to be feasible for bidirectional VLC networking applications scenario.
Image restoration of undersampled two-photon microscopy with conditional generative adversarial network
Authors: Chan Ryan K. Y. , He Hongsen , So W. L. , Fok Hiu Ka , Ren Yu-Xuan , Lai Cora S. W. , Wong Kenneth K. Y.
Published: August 2021

We demonstrate the use of conditional generative adversarial network in restoring undersampled two-photon microscopic image. Image resolution and contrast can be substantially improved without noticeable artefacts with a 4-fold increase in imaging speed.
Phase noise reduction of a dissipative Kerr-microresonator soliton comb by a sideband cooling
Authors: Kuse Naoya , Nishimoto Kenji , Yasui Takeshi , Minoshima Kaoru
Published: August 2021

We demonstrate the reduction of the phase noise of a dissipative Kerr-microresonator soliton comb by putting a sideband generated from a pump CW laser to a microresonator, where the thermorefractive noise is mitigated.
Backward Pump and Signal Combiner with Negligible Beam Quality Degradation for 5KW-level Fiber Lasers
Authors: Liu Yu , Wu Wenjie , Huang Shan , Li Min , Feng Xi , Shen Benjian , Song Huaqing , Zhang Chun , Xie Lianghua , Li Haokun , Tao Rumao , Lin Honghuan , Wang Jianjun , Jing Feng
Published: August 2021

A backward (6+1)×1 pump and signal combiner has been presented, which can combine >5kW pump power in brightness-loss operation mode. By optimizing the fabrication technology, the beam quality (M2) degradation has been controlled to be less than 0.1.
Waveguide Superlattice-based Optical Phased Array: Balancing Superlattice Lobe and Crosstalk Suppression
Authors: Leng Lemeng , Shao Yue , Wu Guihan , Jiang Wei
Published: August 2021

The crucial factors governing the behavior of waveguide superlattice-based optical phased arrays are investigated. The superlattice-induced extra lobes can be minimized with sophisticated supercells while the inter-waveguide crosstalk still needs to be judiciously balanced.
Femtosecond synchronization of three mode-locked lasers and a microwave oscillator with multi-color timing detection
Authors: Kwon Dohyeon , Jeon Chan-Gi , Kim Dohyun , Jeon Igju , Kim Jungwon
Published: August 2021

We synchronize three mode-locked lasers and a microwave oscillator with few-femtosecond residual jitter and drift using phase-locked loops with a single multi-color electro-optic sampling-based timing detector.
Dynamic Control of Plasmonic Colors by Voltage Actuation MEMS Cantilevers
Authors: Han Zhengli , Frydendahl Christian , Mazurski Noa , Levy Uriel
Published: August 2021

We propose a dynamic control of plasmonic colors by using MEMS (micro electro mechanical system) cantilevers. The nano hole structures provide plasmonic colors, while the MEMS cantilevers are built on top to switch the colors.
All-Optical Coherent Lifting of Spin-Degeneracy in CsPbBr3 Nanocrystals
Authors: Shrivastava Megha , Krieg Franziska , Bodnarchuk Maryna I , Kovalenko Maksym , Adarsh K. V.
Published: August 2021

We coherently lift the spin-degeneracy in CsPbBr3 nanocrystals by breaking time-reversal symmetry all-optically without external magnetic field. Huge polarization-selective lifting ~50meV observed, corresponding to Rabi energy >100meV, is highest ever reported in semiconductors at room-temperature.
Effect of Thickness of a Dye-doped Polymeric Film on the Concentration Quenching of Luminescence
Authors: Rout S. , Koutsares S. R. , Courtwright D. , Mills E. , Shorter A. , Prayakarao S. , Bonner C. E. , Noginov M. A.
Published: August 2021

We have studied the dependence of concentration quenching of luminescence on the thickness d of dye-doped polymeric films (HITC:PMMA) and found a strong inhibition of the donor-acceptor energy transfer (concentration quenching) at small values of d.
Existence of a fundamental tradeoff between absorptivity and omnidirectionality in metasurfaces
Authors: Shastri Kunal , Monticone Francesco
Published: August 2021

Perfect absorptivity coupled with omnidirectionality is a design goal for many absorbers and emitters used in sensing. We report the existence of a fundamental tradeoff between these two quantities in thin metasurface based absorbers.
Tuning Metastable Light-Induced Superconductivity in K3C60 with a Hybrid CO2-Ti:Sapphire Laser
Authors: Budden Matthias , Gebert Thomas , Buzzi Michele , Jotzu Gregor , Wang Eryin , Matsuyama Toru , Meier Guido , Laplace Yannis , Pontiroli Daniele , Riccò Mauro , Schlawin Frank , Jaksch Dieter , Cavalleri Andrea
Published: August 2021

High power mid-infrared light pulses of tunable pulse length were generated to stabilize light-induced superconductivity in K3C60 for nanoseconds. This metastable state showed a vanishing electrical resistance at five times the material’s equilibrium critical temperature.
Propagation-Invariant Space-Time Wave Packets from Free Electron Radiation
Authors: Tan Yi Ji , Wong Liang Jie
Published: August 2021

We present Smith-Purcell radiation as a promising platform for the generation of space-time wave packets that are ultra-broadband and highly tunable from terahertz to X-ray frequencies.
ANTI Hong-Ou-Mandel Interference on a Lossy Beamsplitter
Authors: Vetlugin Anton N. , Guo Ruixiang , Soci Cesare , Zheludev Nikolay I.
Published: August 2021

We experimentally demonstrate for the first time that, in contrast to classical Hong-Ou-Mandel experiment performed with a dissipation-free beamsplitter, pairs of photons with fermionic spatial wavefunction ‘coalesce’ while bosonic pairs anti-coalesce on a lossy beamsplitter.
Experimental violation of n-locality in a star quantum network[1]
Authors: Poderini Davide , Agresti Iris , Marchese Guglielmo , Polino Emanuele , Giordani Taira , Suprano Alessia , Valeri Mauro , Milani Giorgio , Spagnolo Nicolò , Carvacho Gonzalo , Chaves Rafael , Sciarrino Fabio
Published: August 2021

Using a flexible and scalable photonic platform, we implement a star-shaped quantum network with five nodes and truly independent sources, and we violate a n-locality inequality to device-independently witness nonlocal correlations in the whole network.
Ultrafast photo-induced melting of the trimer superstructure in TaTe2
Authors: Siddiqui K. M. , Durham D. B. , Cropp F. , Rajpurohit S. , Ophus C. , Zhu Y. , Carlström J. D. , Stavrakas C. , Mao Z. , Raja A. , Musumeci P. , Tan L. Z. , Minor A. M. , Filippetto D. , Kaindl R. A.
Published: August 2021

We report the first ultrafast study of TaTe2, utilizing MeV-scale ultrafast electron diffraction to reveal rapid photo-induced melting of its low-temperature trimer superstructure. Density-functional calculations indicate intra-trimer charge transfer as a trigger of this transformation.
BaFe2As2 Investigated by Pump-Probe Spectroscopy under High Pressures
Authors: Fotev Ivan , Aswartham Saicharan , Büchner Bernd , Schneider Harald , Helm Manfred , Pashkin Alexej
Published: August 2021

We utilize pump-probe spectroscopy at pressures in the GPa range to measure the quasiparticle relaxation dynamics of BaFe2As2. The results reveal the pressure dependences of the spin-density wave condensate energy and the photoexcited quasiparticle lifetimes.
High-dimensional frequency-bin tomography with random measurements
Authors: Lu Hsuan-Hao , Weiner Andrew M. , Lukens Joseph M.
Published: August 2021

Utilizing electro-optic modulation and pulse shaping for random measurements, we reconstruct the full density matrix of biphoton frequency combs for entangled qudits up to d = 5. Our method relies on simple experimental settings and can be applied to any frequency-bin quantum system.
Tree-Type Photonic Cluster State Generation with a Single Quantum Emitter
Authors: Zhan Yuan , Sun Shuo
Published: August 2021

We propose to deterministically generate photonic tree states and repeater graph states of arbitrary size with a single quantum emitter. Photonic entanglement is established through emission and rescattering from the same emitter.
Enhanced third-harmonic dichroism in chiral all-dielectric metasurfaces driven by quasi-BIC
Authors: Gandolfi Marco , Tognazzi Andrea , Rocco Davide , Carletti Luca , De Angelis Costantino
Published: August 2021

We develop a new approach based on quasi-BICs to develop chiral metasurfaces exhibiting nonlinear circular dichroism (up to 99.9%) and high conversion efficiency (10−2 W−2). Tuning mode interference allows selective linear and nonlinear circular dichroism.
Testing a New Strong No-Go Theorem for the Wigner’s Friend Scenario
Authors: Pryde Geoff J. , Bong Kok-Wei , Utreras-Alarcón Aníbal , Ghafari Farzad , Liang Yeong-Cherng , Tischler Nora , Cavalcanti Eric , Wiseman Howard M.
Published: August 2021

The Wigner’s friend paradox illuminates the quantum measurement problem. We derive—and study, in a series of entangled-photon experiments—a new and robust no-go theorem based on the paradox, with stronger constraints than Bell's theorem.
Ultra-Thin Reflective Light Modulators Enabled by Electro-Optical Tunable Gap Plasmons
Authors: Yulaev Alexander , Haffner Christian , Lezec Henri J. , Aksyuk Vladimir
Published: August 2021

We demonstrate compact reflective light modulators based on coupling to gap plasmons electro-optically modulated at radiofrequencies. Modulation is enabled by ultra-fast electro-optic organic polymers that pave the way for high-speed spatial control of light fields.
Control of photons with the effective magnetic flux in synthetic dimensions with rings including GVD
Authors: Yuan Luqi , Yu Danying , Shan Qingrou , Li Guangzhen , Chen Xianfeng
Published: August 2021

We explore the synthetic space with rings including GVD, where effective magnetic flux is constructed to manipulate photons. We find photons can be precisely controlled in two different designs even with the waveguide dispersion included.
Coherent backscattering from randomly distributed ions inside crystals
Authors: Nandi Arindam , An Haechan , Hosseini Mahdi
Published: August 2021

We observed collective atomic resonances and coherent backscattering of light from rare-earth doped crystals by spatio-spectral tailoring of atomic absorption. The observation enables creation of efficient solid-state subradiant quantum memories and superradiant photon sources.
Highly-efficient entanglement storage of light in cold-atom quantum memories
Authors: Hoffet Felix , Cao Mingtao , Qiu Shuwei , Sheremet Alexandra S. , Mamann Hadriel , Nieddu Thomas , Laurat Julien
Published: August 2021

Highly-efficient entanglement storage in quantum memories is a critical requirement for quantum networks. We present an experiment where we stored single-photon entanglement into two atomic-ensemble based quantum memories with an overall efficiency of 87%.