bluuebunny/crossref_metadata_2025 huggingface dataset:
A systematic review of the case findings, testing and management of COVID-19
Authors: Susanna Dewi , Pratiwi Dian , Purnama Sang Gede
Published: August 2022

Background: Mass testing and adequate management are essential to terminate the spread of coronavirus disease 2019 (COVID-19). This testing is due to the possibility of unidentified cases, especially ones without COVID-19 related symptoms. This review aimed to examine the outcome of the existing studies on the ways of identifying COVID-19 cases, and determine the populations at risk, symptom and diagnostic test management of  COVID-19.

Methods: The articles reviewed were scientific publications on the PubMed, Science Direct, ProQuest, and Scopus databases. The keywords used to obtain the data were COVID-19, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and case detection, case management or diagnostic test. We applied the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Population, Intervention, Control and Outcomes (PICO) approaches.

Results: A total of 21 articles from 13 countries met the inclusion criteria and were further analyzed qualitatively. However, 62% of the articles used a rapid antibody test for screening rather than a rapid antigen test. According to the rapid antigen test, 51.3% were positive, with men aged above 50 years recording the highest number of cases. Furthermore, 57.1% of patients were symptomatic, while diagnostic tests' sensitivity and specificity increased to 100% in 14 days after the onset.

Conclusions:  Real-time polymerase chain reaction (RT-PCR)  is recommended by the World Health Organization for detection of COVID-19. Suppose it is unavailable, the rapid antigen test is used as an alternative rather than the rapid antibody test. Diagnosis is expected to be confirmed using the PCR and serological assay to achieve an early diagnosis of COVID-19, according to disease progression, gradual rapid tests can be used, such as rapid antigen in an earlier week and antibody tests confirmed by RT–PCR and serological assay in the second week of COVID-19.
Student teachers' perceptions of the collaborative relationships between universities and inclusive elementary schools in Indonesia
Authors: Rasmitadila Rasmitadila , Humaira Megan Asri , Rachmadtullah Reza
Published: August 2022

Background: The collaborative relationship between universities and inclusive elementary schools has not been maximally practiced. The form of collaboration that universities with inclusive elementary schools have carried out is still limited to the need to complete lecture materials during the semester. There is a gap between the theory and practice obtained by student teachers at universities when they have to teach in inclusive elementary schools. As a result, they have not contributed to solving problems that occur in inclusive elementary schools. The collaborative relationship between inclusive elementary schools and universities directly implies that the success of inclusive education is determined by the competence of student teachers whose lecturers have successfully educated them in order to teach in inclusive elementary schools. Compared to the background that the inclusive education system is developing in Indonesia, the researchers investigated student teachers' perceptions at universities regarding inclusive university-inclusive elementary school collaborative relationships.

Methods: During data collection, an online survey and in-depth interviews of student teachers about individual experiences and their ideas about the form of inclusive elementary schools-university partnerships was conducted. The data analysis used was a thematic analysis technique.

Result: The result summarizes student teachers' statements, revealed three main themes: provision of inclusive education needs, research, and field practice. The student teachers revealed that the collaborative relationship between universities and inclusive elementary schools is essential in order to develop holistic, inclusive practices in a collaborative partnership based on input-needs, which has a two-way impact or benefit for both parties.

Conclusions: Furthermore, collaborative relationships must be in the form of long-term programs, such as continuous assistance, and adaptation to the development of inclusive education through lecture materials. To achieve successful inclusive education in Indonesia, we also recommended that the government make policies on multi-sectoral collaboration in order to support inclusive education.
The first report on detecting SARS-CoV-2 inside bacteria of the human gut microbiome: A case series on asymptomatic family members and a child with COVID-19
Authors: Brogna Carlo , Cristoni Simone , Petrillo Mauro , Bisaccia Domenico Rocco , Lauritano Francesco , Montano Luigi , Prisco Marina , Piscopo Marina
Published: August 2022

Many studies report the importance of using feces as source sample for detecting SARS-CoV-2 in patients with COVID-19 symptoms but who are negative to oropharyngeal/ nasopharyngeal tests. Here, we report the case of an asymptomatic child whose family members had negative results with the rapid antigen nasopharyngeal swab tests. The 21-month-old child presented with fever, diarrhea, bilateral conjunctivitis, and conspicuous lacrimation. In this study, analysis for the presence of SARS-CoV-2 in fecal samples by using Luminex technology allowed accurate detection of the presence of the viral RNA in the feces of the child and of all her relatives, which thus resulted to be positive but asymptomatic. It is the first time that SARS-CoV-2- is observed inside bacteria of the human gut microbiome and outside a matrix resembling extracellular bacterial lysates, in agreement with a bacteriophage mechanism with the images obtained by transmission electron microscopy (TEM), post-embedding immunogold, and by fluorescence microscope. In addition to the typical observations of respiratory symptoms, accurate evaluation of clinical gastrointestinal and neurological symptoms, combined with efficient highly sensitive molecular testing on feces, represent an efficient approach for detecting SARS-CoV-2, and for providing the correct therapy in challenging COVID-19 cases, like the one here reported.
The genesis of organisation development in the NHS: part one—origins
Authors: Edmonstone John
Published: August 2022

In this two-part series, John Edmonstone discusses the origins of organisation development in the NHS. This first instalment explores the historical context and early development of this systematic approach to organisational performance and culture.
Magnetic free optical isolator based on light shift in atomic vapor
Authors: Talker Eliran , Sher Illan , Barash Yefim , Mazurski Noa , Levy Uriel
Published: August 2022

We propose and experimentally demonstrate a magnetic field free isolator based on the light shift effect in miniaturized hot vapor cell. This work paves the way into nonmagnetic optical isolator for optical information processing applications.
Sensitive Optoelectronic Detection of Small Molecules Using Metal Nanoparticle Readers
Authors: Ikbal Md Ashif , Kang Shoukai , Chen Xiahui , Gu Liangcai , Wang Chao
Published: August 2022

We demonstrate a highly sensitive plasmonic nanoparticle-based assay for optoelectronic detection of small molecules using a portable optoelectronic readout system, achieving ~100 pM detection limit of cannabidiol with high specificity.
Label-free detection of a novel ovarian cancer biomarker from complex biofluids using microtoroid resonators
Authors: Ge Chang , Tang Yisha , Luu Gordon , Sanchez Laura , Su Judith
Published: August 2022

We combine mass spectrometry with microtoroid resonators to discover and detect a new biomarker for ovarian cancer. Our results show that the biomarker levels increase with time, revealing the progression of tumors implanted in mice.
Screening for effective COVID-19 drugs using microtoroid optical resonators
Authors: Suebka Sartanee , Gin Adley , Tang Yisha , Kim Soo-Kyung , Goddard William A. , Su Judith
Published: August 2022

We virtually screen for effective COVID-19 drugs and test their ability to prevent binding of SARS-CoV-2 and two variants to hACE2 receptors using microtoroids. Three drugs were found to have picomolar inhibitory constants.
Frozen-mode Enabled Photonic Sensing for Label-free Biosensors
Authors: Paul Banaful , Sertel Kubilay , Nahar Niru K.
Published: August 2022

We propose a novel SOI waveguide-based label-free photonic biosensors utilizing coupled Si ridge waveguide stemmed frozen-mode which improves light-matter interaction by slowing the light over 600 times compared to free space for integrated photonic sensing.
Range resolved CO2 measurements over 3 km using a 10-point fiber-based differential-absorption LIDAR (DIAL) system
Authors: Stroud Jasper R. , Plusquellic David F.
Published: August 2022

We present a multi-frequency DIAL system based on a fast-switching wavelength source and fiber optic amplification to acquire range-resolved dry-air CO2 concentrations over the city of Boulder, Colorado USA.(/p)(p)Official contribution of the NIST; not subject to copyright in the United States.
Supercontinuum Lidar for Industrial Process Analysis
Authors: Saleh Abba , Ryczkowski Piotr , Genty Goery , Toivonen Juha
Published: August 2022

We report real-time simultaneous measurement of average water vapor temperature and concentration in a full-scale industrial boiler, and further map the concentration profile in the boiler, by a broadband lidar employing a custom supercontinuum source.
Monolithic Indium Phosphide Photonic Integrated Circuit for Remote Lidar Active Carbon Dioxide Sensing
Authors: Sang Fengqiao , Rosborough Victoria , Fridlander Joseph , Gambini Fabrizio , Brunelli Simone Šuran , Chen Jeffrey R. , Kawa Stephan R. , Numata Kenji , Stephen Mark , Coldren Larry , Klamkin Jonathan
Published: August 2022

A monolithic indium phosphide photonic integrated circuit was designed and fabricated for remote active carbon dioxide sensing. Successful measurement of carbon dioxide in a laboratory setting under pulsed sampling was demonstrated.
Integrated FMCW Lidar with 210-meter Ranging Based on Lens-assisted Beam Steering (LABS) Technology
Authors: Cao Xianyi , Wu Kan , Li Chao , Li Tianyi , Chen Jianping
Published: August 2022

An integrated frequency-modulated continuous-wave Lidar is demonstrated based on lens-assisted beam steering technology at 1550nm. For the first time, the integrated Lidar has achieved a maximum ranging distance up to 210m.
Isotopologue trace gas detection using multipass cavity Raman scattering
Authors: Singh Jaspreet , Muller Andreas
Published: August 2022

Feedback-assisted multipass-cavity spontaneous Raman scattering is demonstrated as an effective method of isotopologue analysis. Deuterium concentration precision near one part-per-million in water was obtained by direct vapor and indirect dihydrogen measurements.
Drone-Based Quantum Key Distribution
Authors: Isaac Samantha , Conrad Andrew , Schroeder AJ , Javid Timur , Sanchez-Rosales Daniel , Cochran Roderick D. , Gutha Akash , Gauthier Daniel , Kwiat Paul G.
Published: August 2022

Current quantum cryptography implementations primarily use fixed free-space or fiber-based communication channels. We seek to broaden this to include mobile platforms. Here we report progress towards optical tracking system stabilization leading to efficient quantum state transmission.
High-Speed Chip-based Measurement-Device-Independent Quantum Key Distribution with Double-Scanning Method
Authors: Cao L. , Luo W. , Hu X. L. , Jiang C. , Jin Y. F. , Wang X. B. , Kwek L. C. , Liu A. Q.
Published: August 2022

Photonic integration offers a practical solution for wider deployment of quantum secure communication. Based on carrier-depletion modulators (CDMs) in silicon photonics, we design and fabricate high-speed transmitter chips and demonstrate its capability to implement measurement-device-independent quantum key distribution (MDI-QKD). In the proof-of-concept experiment, the quantum bit error rate (QBER) is as low as 0.85% in Z basis and 25.5% in X basis, respectively. With a double-scanning method, the optimized system shows a key rate per pulse of 1.65×10−4 over an emulated attenuation of 10 dB (corresponding to 50-km standard fiber) with 80% single photon detection efficiency.
Cloud-Scale Archival Storage Using Ultrafast Laser Nanostructuring
Authors: Diaz Ariel Gomez , Anderson Patrick , Aranas Erika , Armas Jorge Rodriguez , Arslan Ben , Assaf Youssef , Behrendt Raphael , Black Richard , Bucciarelli Stefano , Caballero Marco , Cabara Yoseline , Cameron Pashmina , Chatzieleftheriou Andromachi , Clarke Rebekah , Clegg James , Cletheroe Daniel , Deegan Tim , Donnelly Austin , Drevinskas Rokas , Gaunt Alexander , Gkantsidis Christos , Gupta Gaurav , Haller Istvan , Ilieva Teodora , Joyce Russell , Kunkel William , Lara David , Legtchenko Sergey , Liu Fanglin , Magalhaes Bruno , Marzoev Alana , Mohan Jayashree , Nguyen Truong , Nowozin Sebastian , O'Connell Daniel , Ogus Aaron , Overweg Hiske , Picardi Michela Florinda , Rowstron Ant , Sakakura Masaaki , Scholtz Peter , Schreiner Nina , Silberboim Omer , Skrebels Mark , Smith Adam , Stefanovici Ioan , Sweeney David , Verkes Govert , Wainman Phil , Westcott Jonathan , Weston Luke , Whittaker Charles , Wilke-Berenguer Pablo , Williams Hugh , Winkler Thomas
Published: August 2022

Recent progress in ultrafast laser nanostructuring enables high-density multidimensional volumetric data writing. With exceptional media longevity, this could transform archival cloud storage. We demonstrate peak volumetric densities above 250 MB/mm3 of data write and read.
A Low-cost Fresnel Lens Fluorometer to Detect Fecal Contamination in Drinking Water in Realtime
Authors: Bohora Sanket , Li Kezheng , Waiba Prashant , Gautam Sishir , Martins Augusto , Rodrigues Ricardo A. , Kikstra Peter , van der Horst Marcel , Martins Emiliano R. , Krauss Thomas F. , Dhakal Ashim
Published: August 2022

We report the detection of tryptophan at sub-ppb levels for a fluorometer based on Fresnel lenses and low-cost electronics. These fluorometers can be used to detect fecal contamination in drinking water, indicated by tryptophan-like fluorescence.
Fundamental thermodynamic noise in crystalline optical materials
Authors: Kryhin Serhii , Hall Evan D. , Sudhir Vivishek
Published: August 2022

We have discovered a new thermodynamic noise unique to crystalline materials that will limit their performance in optical metrology. It causes frequency-dependent depolarization of the optical field, which appears as apparent amplitude and phase noise when the field is detected. Our work generalizes all prior descriptions of thermo-optic noises in amorphous materials.
Universality of thermalization in multimoded nonlinear optics
Authors: Zhong Qi , Wu Fan O. , El-Ganainy Ramy , Christodoulides Demetrios N.
Published: August 2022

We demonstrate the universality of Rayleigh-Jeans distribution in nonlinear multimoded optical systems, regardless of the type of nonlinearity or the existence of wave mixing.
Thermalization of orbital angular momentum beams in optical fibers
Authors: Mangini Fabio , Podivilov Evgeniy V. , Ferraro Mario , Sidelnikov Oleg S. , Gervaziev Mikhail , Kharenko Denis S. , Zitelli Mario , Sun Yifan , P. Mikhail , Fedoruk  , Babin Sergey A. , Wabnitz Stefan
Published: August 2022

We experimentally and theoretically study the thermalization of orbital angular momentum beams in nonlinear multimode graded-index optical fibers. Our results shed new light on the physical mechanism of the beam self-cleaning effect.
Topological Lasers with Epitaxially Grown InGaAs Nanowires on a SOI Substrate
Authors: Gong Yongkang , Messina Cristian , Wong Stephan , Abouzaid Oumaima , Ratiu Bogdan-Petrin , Li Qiang , Oh Sang Soon
Published: August 2022

We report a semiconductor laser based on optical cavities formed by topologically distinct honeycomb lattice photonic crystals. Topological lasers, fabricated on SOI wafers by using a selective area epitaxy method, can have edge modes and bulk modes under optical pumping.
Moiré effects in silicon photonic nanowires
Authors: Talukdar Tahmid H. , Hardison Anna , Ryckman Judson D.
Published: August 2022

We implement 1D moiré patterns in silicon photonic nanowires to demonstrate a wide range of effects such as tunable photon transport and localization, high-Q cavities and coupled resonator optical waveguide behavior by modulation of lattice mismatch and crystal length. © 2022 The Author(s)
Tunable bound states in the continuum with high Q factors
Authors: Hu Guiying , Li Zhixin , Yang Shuixian , Xia Di , Wu Jiayue , Huang Jianteng , Zhang Bin , Xu Yi , Li Zhaohui
Published: August 2022

We realized a chalcogenide glass (ChG) photonic crystal supporting bound states in the continuum (BIC) with a Q-factor of ca. 105. With large photosensitivity of ChG, a non-volatile and high precision resonant-wavelength tunability is demonstrated.
Enhanced Smith–Purcell radiation from photonic flatband resonances
Authors: Yang Yi , Roques-Carmes Charles , Kooi Steven E. , Tang Haoning , Beroz Justin , Mazur Eric , Kaminer Ido , Joannopoulos John D. , Soljačić Marin
Published: August 2022

We show in both theory and experiment that flatband photonic resonances can control and boost free-electron radiation, as validated by enhancement, band, and polarization-shaping measurements.
Patch-Type Wireless Power Transfer System Based on Electromagnetic Wave Focusing Metasurface for Bioimplantable Devices
Authors: Jo Semin , Lee Wonwoo , Lee Hojin
Published: August 2022

We propose a patch-type wireless power transfer system for bioimplantable devices using electromagnetic wave focusing metasurface. Simulation and experimental results have been demonstrated that transmitted power was enhanced at specific locations into the tissue.
Fundamental Thickness Bounds for Wide-Field-of-View Metalenses
Authors: Li Shiyu , Hsu Chia Wei
Published: August 2022

We show that any aberration-free wide-field-of-view lens system must have a minimal thickness—depending on the field of view, lens diameter, and numerical aperture—that originates from the Fourier transform relation between space and angle.
Wafer-scale single-aperture near-infrared metalens fabricated by deep UV photolithography
Authors: Zhang Lidan , Chang Shengyuan , Chen Xi , Ding Yimin , Rahman Md Tarek , Yao  , Duan  , Terekhov Pavel , Ni Xingjie
Published: August 2022

We reported a wafer-scale near-infrared metalens with an aperture size of eight centimeters operating around 1.5 µm fabricated using deep UV photolithography. Our measurements show that it has diffraction-limited performance with about 80% focusing efficiency.
Imprinted Barium Titanate Metalenses with broadband Focus
Authors: Weigand Helena , Vogler-Neuling Viola V. , Pitz Oliver , Talts Ülle-Linda , Timpu Flavia , Karvounis Artemios , Winiger Joel , Benedek Peter , Wood Vanessa , Leuthold Jürg , Grange Rachel
Published: August 2022

We present a metalens from barium titanate, a widely transparent and optically nonlinear material. We demonstrate broadband visible to near-infrared focusing using a simple soft nano-imprint fabrication to reach aspect-ratios of up to 8.
Metasurfaces on Silicon Photonics for Simultaneous Emission Amplitude and Phase Control
Authors: Lin Yu-Siang , Hsieh Ping-Yen , Fang Shun-Lin , Chang You-Chia
Published: August 2022

We numerically and experimentally demonstrate simultaneous control of emission amplitude and phase control with amorphous silicon metasurfaces monolithically integrated on silicon waveguides. We generate emission patterns, including a focused Gaussian beam and a Hermite-Gaussian mode.
Quantum Computing Chip with Error-Correction Encoding
Authors: Wan Lingxiao , Zhang Hui , Zhu Huihui , Kwek Leong Chuan , Liu Ai-Qun
Published: August 2022

We design and fabricate a quantum photonic circuit to implement a quantum error correction code. A single logical qubit is encoded with 4 physical qubits to demonstrate its capability of detecting and correcting a single-bit error with an average state fidelity of 86%. We further extend the scheme to demonstrate a fault-tolerant teleportation process.
A Boson Sampling Chip for Graph Perfect Matching
Authors: Wan Lingxiao , Zhu Huihui , Wang Bo , Zhang Hui , Kwek Leong Chuan , Liu Ai Qun
Published: August 2022

We map the perfect matching problem in graph theory to a reconfigurable GBS model with the connection of the Hafnian of a matrix. We configure the linear optical circuit and squeeze parameter of the GBS model according to the decomposed unitary matrix and diagonal matrix of the graph’s adjacency matrix. The perfect matching numbers can be directly acquired from the 4-photon coincidence counts with a distribution similarity of 0.9304.
Generating Gottesman-Kitaev-Preskill Qubits Over Continuous-Variable Cluster States with Photon-Number-Resolving Measurements
Authors: Eaton Miller , González-Arciniegas Carlos , Alexander Rafael N. , Menicucci Nicolas C. , Pfister Olivier
Published: August 2022

We develop a method to embed Schrödinger Cat states in continuous-variable cluster states with high probability using photon-number-resolving detection. Embedded cat states can then be bred into Gottesman-Kitaev-Preskill qubits with Gaussian measurements on the cluster.
Engineering Joint Spectral Densities with Orbital Angular Momentum States in Optical Fibers
Authors: Liu Xiao , Kim Dong Beom , Lorenz Virginia O. , Ramachandran Siddharth
Published: August 2022

We exploit the large modal space available in ring-core fibers supporting orbital angular momentum modes to demonstrate a versatile means to control the shape of photon-pair joint-spectral densities generated by spontaneous four-wave mixing.
Towards high purity heralded single photon generation in thin-film lithium niobate
Authors: Xin C. J. , Mishra Jatadhari , Shams-Ansari Amirhassan , Langrock Carsten , Fejer Martin M. , Lončar Marko
Published: August 2022

We design and fabricate dispersion-engineered thin-film lithium niobate waveguides for high-purity heralded single-photon generation in the telecommunications band, characterize the phase-matching function via sum-frequency generation, and estimate the joint spectral intensity separability.
Measuring n-photon Indistinguishability
Authors: Pont Mathias , Albiero Riccardo , Thomas Sarah E. , Spagnolo Nicolò , Ceccarelli Francesco , Corrielli Giacomo , Brieussel Alexandre , Somaschi Niccolo , Belabas Nadia , Huet Hêlio , Harouri Abdelmounaim , Lemaître Aristide , Sagnes Isabelle , Sciarrino Fabio , Osellame Roberto , Senellart Pascale , Crespi Andrea
Published: August 2022

Abstract: We propose a scalable measurement of the indistinguishability of a n-photon state harnessing a multi-port interferometer. We demonstrate this method using four photons from a quantum dot single-photon source with an integrated cyclic interferometer.
Joint Spectral Characterization of Cryogenic Spontaneous Parametric Down-Conversion
Authors: Lange Nina Amelie , Höpker Jan Philipp , Ricken Raimund , Quiring Viktor , Eigner Christof , Silberhorn Christine , Bartley Tim J.
Published: August 2022

We demonstrate, to the best of our knowledge, the first functional cryogenic SPDC source. This proof-of-principle experiment represents a starting point for interfacing SPDC with integrated components requiring cryogenic operation conditions, such as superconducting detectors.
Computational and Theoretical Modeling of Acoustoelectrically Enhanced Brillouin Optomechanical Interactions in Piezoelectric Semiconductors
Authors: Storey Matthew J. , Otterstrom Nils T. , Behunin Ryan O. , Hackett Lisa , Rakich Peter T. , Eichenfield Matt
Published: August 2022

We computationally explore the optical and elastic modes necessary for acoustoelectrically enhanced Brillouin interactions. The large simulated piezoelectric (k2 ≈ 6%) and optome-chanical (|g0| ≈ 8000 (rad/s)√m) coupling theoretically predicts a performance enhancement of several orders of magnitude in Brillouin-based photonic technologies.
Suppressing Stimulated Brillouin Scattering by Selective Mode Excitation in Multimode Fibers
Authors: Chen Chun-Wei , Wisal Kabish , Ahmadi Peyman , Stone A. Douglas , Cao Hui
Published: August 2022

We experimentally demonstrate efficient suppression of stimulated Brillouin scattering in multimode fibers. By distributing the power in a number of high-order modes, the SBS threshold is three times as much as that for fundamental-mode-only excitation.
Microresonator Brillouin Backaction Thermometry
Authors: Lai Yu-Hung , Yuan Zhiquan , Suh Myoung-Gyun , Lu Yu-Kun , Vahala Kerry J.
Published: August 2022

Long-term frequency stable operation of Brillouin lasers relies on strict temperature control of the optical mode volume. We report measurement of optical mode temperature and its stabilization using Brillouin-induced back-action in a cascaded Brillouin laser.
Plasmon-enhanced Quantum Emission from Spin Defects in Two-dimensional Hexagonal Boron Nitride
Authors: Xu Xiaohui , Solanki Abhishek. B. , Sychev Demid , Gao Xingyu , Martin Zachariah O. , Baburin Alexander S. , Chen Yong P. , Rodionov Ilya A. , Kildishev Alexander , Li Tongcang , Upadhyaya Pramey , Boltasseva Alexandra , Shalaev Vladimir M.
Published: August 2022

We demonstrate 120-fold photoluminescence enhancement of VB-spin defects in hBN by coupling them to nanopatch antennas. Since the laser spot is 6.25 times larger than the antenna area, the actual enhancement is 750-fold.
Electron-beam Spectroscopies as Probes of Quantum Effects in Nanoplasmonics
Authors: Gonçalves P. A. D. , de Abajo F. Javier García
Published: August 2022

We demonstrate how the unique ability of free-electron beams to produce deeply subwavelength near-fields can be harnessed for inferring the quantum nonlocal response of metals from electron energy-loss and cathodoluminescence spectra.
Planar Terahertz Toroidal Meta-Device for Efficient Polarization Conversion
Authors: Bhattacharya Angana , Sarkar Rakesh , Punjal Ajinkya , Prabhu S.S. , Kumar Gagan
Published: August 2022

An ultra-wideband polarization conversion of linearly polarized light via a toroidal metamaterial has been demonstrated experimentally. The cross-polarization conversion of more than 40% is achieved which is highest to the best of our knowledge.
Experimental Investigation for the Causes of Orbital-Angular-Momentum Modal Coupling Through a Dynamic Random Turbulent Medium
Authors: Song Haoqian , Duan Yuxiang , Zhou Huibin , Zhang Runzhou , Song Hao , Su Xinzhou , Acevedo Cristian , Eshaghi Mahdi , Zou Kaiheng , Pang Kai , Tur Moshe , Dogariu Aristide , Watkins Richard J. , Willner Alan E.
Published: August 2022

We experimentally measure the contributions of beam distortion and wandering to OAM modal coupling through a random turbulent medium. The inter-modal power coupling further increases under turbulent-medium-induced beam distortions in comparison with the beam-wandering-only cases.
Experimental resource-efficient photonic variational quantum eigensolver
Authors: Lee Donghwa , Lee Jinil , Hong Seongjin , Lim Hyang-Tag , Cho Young-Wook , Han Sang-Wook , Shin Hyundong , ur Rehman Junaid , Kim Yong-Su
Published: August 2022

We report implementation of experimental-resource efficient photonic variational quantum eigensolver using multiple degrees of freedom of a single photon. It is equipped with the quantum error mitigation protocol that efficiently remedies the Pauli channel noise.
Programming multi-mode quantum circuits in complex scattering media
Authors: Goel Suraj , Leedumrongwatthanakun Saroch , Valencia Natalia Herrera , McCutcheon Will , Pinkse Pepijn W. H. , Conti Claudio , Malik Mehul
Published: August 2022

We demonstrate the manipulation of a five-dimensional spatially entangled two-photon state using reprogrammable multi-mode optical circuits implemented within a multi-mode fiber.
Destructive Controlled Phase Gate using Linear Optics
Authors: Shringarpure Saurabh U. , Franson James D.
Published: August 2022

Two nonlinear sign gates can be combined to implement a controlled-phase gate using only linear optics. We propose a destructive controlled-phase gate for single-rail target qubits requiring the use of a single nonlinear sign gate.
Experimental Demonstration of A Spatial Mode Quantum Gate Assisted by Diffractive Deep Neural Networks
Authors: Wang Qianke , Liu Jun , Lyu Dawei , Wang Jian
Published: August 2022

We demonstrate a quantum controlled-NOT (CNOT) gate operating on spatial modes of single photons. The CNOT gate is implemented by a series of spatially separated phase plates generated by diffractive deep neural networks (D2NNs).
Experimental Realization of Non-Adiabatic Holonomic Quantum Gates
Authors: Neef Vera , Pinske Julien , Heinrich Matthias , Scheel Stefan , Szameit Alexander
Published: August 2022

We present the experimental realization of non-adiabatic holonomic quantum gates, paving the way towards noise-resilient quantum computing in integrated quantum optics. Their topologically protected functionalities are realized solely by means of non-Abelian geometric phases.
Three-Way Frequency Beamsplitter
Authors: Oliver Richard , Blau Miri , Gaeta Alexander L.
Published: August 2022

We perform classical unitary conversion between three frequencies mediated by Bragg-scattering four-wave mixing with three pump fields. In the quantum regime, such a scheme can be scaled to realize N-frequency-bin W-states and boson sampling.
Quantum Interface for Telecom Ultrafast and Nanosecond Light Pulses
Authors: Sośnicki F. , Mikołajczyk M. , Golestani A. , Szuniewicz J. , Widomski A. , Karpiński M.
Published: August 2022

We experimentally show spectral bandwidth compression of broadband heralded single photons by two orders of magnitude, from 1.5 nm to 5 pm, increasing a photon flux through a 2 pm filter by a factor of 12.
Information Extraction in Photon Counting Experiments
Authors: Schapeler Timon , Bartley Tim J.
Published: August 2022

We use quantum detector tomography to quantify the extracted information of detection outcomes from five different multiplexed SNSPDs. This allows to directly compare the quality of different multiplexing architectures for photon-counting applications.
An atomic frequency comb memory in rare-earth doped thin-film lithium niobate
Authors: Dutta Subhojit , Zhao Yuqi , Saha Uday , Farfurnik Demitry , Goldschmidt Elizabeth A. , Waks Edo
Published: August 2022

We demonstrate compact chip-integrated atomic frequency comb storage in rare-earth doped thin-film lithium niobate. Our optical memory exhibits a broad storage bandwidth exceeding 100 MHz, and optical storage time of over 250 ns.
Simultaneously Tracking Tens of Reaction Pathways Initiated by Tunnel Ionization of Organic Molecules
Authors: Jochim Bethany , DeJesus Lindsey , Dantus Marcos
Published: August 2022

We present experimental results where tens of products resulting from strong-field ionization of organic molecules are tracked simultaneously via disruptive probing. A theoretical model is used fit to the results and extract dynamic constants.
Verifying the Frequency Resolved Optical Switching Technique to Accurately Characterize Multi-Octave IR Pulse
Authors: Longa Adrien , Kumar Mayank , Lassonde Philippe , Laramée Antoine , Ibrahim Heide , Legaré François , Leblanc Adrien
Published: August 2022

We present advanced features of the frequency resolved optical switching technique: (i) temporal characterization of an IR supercontinuum, (ii) a high precision on group delay dispersion, (iii) characterization of pulses independently of their polarization direction.
Single-shot spatiospectral characterization of ultrafast pulse-beams
Authors: Goldberger David , Barolak Jonathan , Bevis Charles S. , Ivanic Bojana , Durfee Charles G. , Adams Daniel E.
Published: August 2022

Single-shot spatiospectral characterization of ultrafast pulse-beams is critical for their optimal application. Here we demonstrate, to our knowledge, the first reference-free spatiospectral characterization of a single pulse-beam, performed using broadband single-shot ptychography (BBSSP).
Experimental Entanglement-Enhanced Covert Sensing
Authors: Hao Shuhong , Shi Haowei , Gagatsos Christos N. , Mishra Mayank , Bash Boulat , Djordjevic Ivan , Guha Saikat , Zhuang Quntao , Zhang Zheshen
Published: August 2022

We report the theory and experiment for entanglement-enhanced covert sensing, a paradigm that simultaneously offers high measurement precision and data integrity by concealing the execution of the protocol.
Quantum Receiver Enhanced by Adaptive Learning
Authors: Cui Chaohan , Horrocks William , Guha Saikat , Peyghambarian N. , Zhuang Quntao , Zhang Zheshen
Published: August 2022

Adaptive quantum receiver designed by machine learning is demonstrated for discriminating multiple nonorthogonal coherent states, achieving reduced error rates of 20% (50%) over existing quantum (classical) receivers.
Reference frames in astronomical interferometry
Authors: Wang Yunkai , Zhang Yujie , Lorenz Virginia O.
Published: August 2022

We connect the reference frame problem in astronomical interferometry to the concept of decoherence-free subspaces in quantum information. Inspired by this connection, a new scheme that does not rely on reference frame is proposed.
Approaching Helstrom Bound Using Single-shot Quantum Measurement Confidences
Authors: Burenkov Ivan A. , Annafianto N. Fajar R. , Jabir M. V. , Semionov Alexandra , Battou Abdella , Polyakov Sergey V.
Published: August 2022

We demonstrate the first quantum measurement providing s ingle-shot self-confidence for each received symbol. Further, we use measured confidence data to implement error correction codes reducing error rates by more than five orders of magnitude for reliable communication.
Thickness Dependent Optical Properties of Plasmonic Transdimensional Titanium Nitride
Authors: Shah Deesha , Yang Morris , Kudyshev Zhaxylyk , Shalaev Vladimir M. , Bondarev Igor , Boltasseva Alexandra
Published: August 2022

We experimentally demonstrate quantum confinement induced thickness dependent optical properties in atomically-thin, passivated, epitaxial, metallic TiN films using spectroscopic ellipsometry as predicted by a nonlocal Drude dielectric response model for plasmonic transdimensional materials (TDMs).
Quantum Recoil in Free Electron-Driven Spontaneous Emission from Van Der Waals Crystals
Authors: Huang Sunchao , Duan Ruihuan , Pramanik Nikhil , Herrin Jason Scott , Boothroyd Chris , Liu Zheng , Wong Liang Jie
Published: August 2022

We experimentally measure quantum recoil in Smith-Purcell radiation, achieved by scattering free electrons off the periodic lattice of van der Waals crystals to generate multimode coherent X-rays.
Imaging dynamics of optical vortices in 2D materials
Authors: Kurman Yaniv , Dahan Raphael , Shenfux Hanan Herzig , Rosolen Gilles , Janzen Eli , Edgar James H. , Koppens Frank H. L. , Kaminer Ido
Published: August 2022

We present the first observation of optical vortices in 2D materials. Specifically, we use ultrafast transmission electron microscopy to measure phonon-polariton-vortices in hBN. This provides the first experiment of vortex-pair creation&annihilation in any optical system.
Hot Carrier Photodection In Graphene Coupled To a Plasmonc Grating Via 1D Electrodes
Authors: Frydendahl Christian , Indukuri S.R.K. Chaitanya , Devidas Taget-Raghavendran , Mazurski Noa , Watanabe Kenji , Taniguchi Takashi , Steinberg Hadar , Levy Uriel
Published: August 2022

We show here how encapsulated graphene devices can be laterally coupled to plasmonic gratings, preserving the ultra-high mobility of encapsulated graphene, while still enhancing its optical coupling. Our device also works as a bolometric photodetector.
Coherent Backscattering of Entangled Photon Pairs
Authors: Safadi Mamoon , Lib Ohad , Lin Ho-Chun , Hsu Chia Wei , Goetschy Arthur , Bromberg Yaron
Published: August 2022

We report on the first observation and study of coherent backscattering of entangled photon pairs. We show that after the photons backscatter from a dynamic random medium, they remain correlated, exhibiting a new mesoscopic phenomenon.
Generation of Different Polarization States Simultaneously with a Metasurface for On-Chip Quantum Information Technology
Authors: Gao Ya-Jun , Peng Ru-Wen , Wang Mu
Published: August 2022

Manipulating the polarization state of light is essential for on-chip photonics and quantum information processing. We demonstrate the generation of different polarization states via a single metasurface based on geometrical-scaling-induced phase modulations.
Metasurface blue-detuned atom trap arrays using singularity engineering
Authors: Lim Soon Wei Daniel , Park Joon-Suh , Meretska Maryna L. , Dorrah Ahmed H. , Kazakov Dmitry , Capasso Federico
Published: August 2022

An array of ten identical, blue-detuned atom traps with 3D confinement generated by inverse-designed metasurface is presented, a proof-of-concept for metasurfaces as a compact and versatile means for multi-atom optical traps in quantum optics.
Non-Hermitian skin effect and point-gap topology in photonic crystals
Authors: Zhong Janet , Wang Kai , Park Yubin , Asadchy Viktar , Wojcik Charles C. , Dutt Avik , Fan Shanhui
Published: August 2022

We show that two-dimensional non-Hermitian photonic crystals made of lossy material can exhibit nontrivial point gap topology and non-Hermitian skin effect. Our work shows that these effects can be exhibited in systems beyond tight-binding models.
Group Theory Approach for Designing Symmetry Protected Degenerate Bound States in the Continuum in Metasurfaces
Authors: Doiron Chloe F. , Brener Igal , Cerjan Alexander
Published: August 2022

We experimentally demonstrate methods for designing symmetry protected degenerate bound states in the continuum in dielectric metasurfaces. Deforming the metasurface can break symmetry protection, lifting the degeneracy and allowing the high-Q modes to be accessed.
High-dimensional Frequency Entanglement Certification
Authors: Ponce Meritxell Cabrejo , Muniz André A. L. M. , Huber Marcus , Steinlechner Fabian
Published: August 2022

With few measurement settings and no assumptions on the state, we show methods to certify the highest dimensionality of entanglement in the frequency domain harvested from a common (2) nonlinear crystal.
Experimental Single-Copy Entanglement Distillation
Authors: Ecker Sebastian , Sohr Philipp , Bulla Lukas , Huber Marcus , Bohmann Martin , Ursin Rupert
Published: August 2022

We experimentally realize an entanglement distillation protocol which, against conventional wisdom, operates on a single photon pair entangled in two properties. This enables practical entanglement distillation which is orders of magnitude more efficient over long distances.
Photon-pair generation in a heterogeneous silicon photonic chip
Authors: MacFarlane Neil , Jin Mingwei , Ma Zhaohui , Sua Yongmeng , Foster Mark A. , Foster Amy C. , Huang Yuping
Published: August 2022

We perform photon-pair generation in a heterogeneous multi-layer silicon photonic chip consisting of SiNx and a-Si:H waveguides. Record high CAR value of 1632.6 (± 260.4) is achieved in a-Si:H waveguides from the heterogeneous design.
Reconfigurable Lithium Niobate nanophotonic circuits for quantum information processing with InAs/GaAs Quantum Dot single-photon sources
Authors: Lenzini Francesco , Lomonte Emma , Paesani Stefano , Sund Patrik I. , Lodahl Peter , Pernice Wolfram H.
Published: August 2022

We present the experimental realization of electro-optically reconfigurable Lithium-Niobate-On-Insulator waveguide circuits featuring propagation loss down to ~0.8 dB/cm at a ~900 nm wavelength, designed for operation with single photons emitted by InAs/GaAs Quantum Dots.
AlGaAsOI Photonics and Low-Loss Links for High-Speed Entanglement-Based Quantum Key Distribution
Authors: Steiner Trevor J. , Castro Joshua E. , Dinkelacker Alex , Chang Lin , Bowers John E. , Moody Galan
Published: August 2022

We report a record-high detected entangled-photon pair coincidence rate from an AlGaAs-on-insulator microring resonator with raw coincidence rates >19 kHz that is capable of time-bin entanglement-based QKD with an estimated secure key rate of 1.4 kbits/second.
Integration of GaAs waveguides with quantum dots on Silicon substrates for quantum photonic circuits
Authors: Shadmani Atefeh , Thomas Rodrigo , Liu Zhe , Volet Nicolas , Heck Martijn J. R. , Scholz Sven , Wieck Andreas D. , Ludwig Arne , Lodahl Peter , Midolo Leonardo
Published: August 2022

We present the heterogeneous integration of GaAs membranes with embedded quantum dots on a Silicon substrate, based on die-to-die bonding method. We demonstrate light transmission in GaAs nanobeam waveguides and emission from individual quantum emitters.
All-Optical, Tunable Third Harmonic Generation in the Ultraviolet Range using Reconfigurable Chalcogenide Metasurfaces
Authors: Gao Jiannan , Vincenti Maria Antonietta , Frantz Jesse , Clabeau Anthony , Qiao Xingdu , Feng Liang , Scalora Michael , Litchinitser Natalia M.
Published: August 2022

We theoretically predict and experimentally demonstrate ultra-high-speed, tunable third harmonic generation (THG) in the opaque spectral range of Arsenic trisulfide (As2S3) glass metasurfaces.
Highly efficient high-harmonic generation from artificially stacked 2D materials
Authors: Heide Christian , Kobayashi Yuki , Johnson Amalya , Liu Fang , Heinz Tony , Reis David A. , Ghimire Shambhu
Published: August 2022

We report high-harmonic generation from the artificially stacked monolayer tungsten disulfide. The harmonic yield scales quadratically with the number of layers, limited by reabsorption by subsequent layers for above bandgap energies.
Ultrafast dynamics of a photoexcited and periodically-driven Dirac semimetal Cd3As2 studied by multiterahertz time-domain spectroscopy
Authors: Kanda Natsuki , Murotani Yuta , Ikeda Tatsuhiko N. , Matsuda Takuya , Goyal Manik , Yoshinobu Jun , Kobayashi Yohei , Stemmer Susanne , Matsunaga Ryusuke
Published: August 2022

We investigated ultrafast broadband (12-45 THz) response functions of a photoexcited Dirac semimetal Cd3As2. Under periodic driving at 30 THz, we observed coherent nonlinear response dominated by stimulated Rayleigh scattering between the photon-dressed states.
Fermi edge singularity in ultracold neutral electron-hole plasma
Authors: Choksy D. J. , Szwed E. A. , Butov L. V. , Baldwin K. W. , Pfeiffer L. N.
Published: August 2022

We studied electron-hole plasma in separated electron and hole layers. We observed a strong enhancement of photoluminescence intensity at the Fermi energy of the ultracold plasma that evidences the emergence of excitonic Fermi edge singularity.
Valley-polarized Hyperbolic-Exciton-Polaritons in 2D Semiconductors
Authors: Eini Tomer , Asherov Tal , Mazor Yarden , Epstein Itai
Published: August 2022

In this work, we predict the existence of hyperbolic-exciton-polaritons (HEPs) in 2D semiconductors of transition-metal-dichalcogenides (TMDs) at visible frequencies. We show that hyperbolicity can be induced in the layered material owing to the behavior of the excitons supported by the TMD, therefore leading to the existence of HEPs. We derive the HEPs dispersion relation, analyzing their confinement and loss properties and finding the HEPs’ wavelengths are about two orders of magnitude smaller than the corresponding free-space wavelength. Furthermore, we show that the existing HEPs are coupled to the valley degree-of-freedom, leading to a hyperbolic spin-valley hall effect.
Probing Ultrafast Dynamics of Anharmonically Coupled Phonons in Few-Layer Hexagonal Boron Nitride
Authors: Kang Taehee , Zhang Jia , Kundu Achintya , Reimann Klaus , Woerner Michael , Elsaesser Thomas , Gil Bernard , Cassabois Guillaume , Flytzanis Christos , Fugallo Giorgia , Lazzeri Michele , Page Ryan , Jena Debdeep
Published: August 2022

Nonequilibrium dynamics of transverse optical (TO) phonons in few-layer hexagonal boron nitride is studied in mid-infrared pump-probe experiments. TO phonons display a 1.2 ps lifetime and a transient redshift due to anharmonic coupling with low-frequency interlayer modes.
Electrically tunable beam manipulation based on intersubband polaritonic metasurfaces
Authors: Hwang Inyong , Chung Hyeongju , Yu Jaeyeon , Boehm Gerhard , Belkin Mikhail A. , Lee Jongwon
Published: August 2022

We report electrically tunable beam manipulations using intersubband polaritonic metasurfaces. Experimentally, 45° of reflection phase tuning, 15% of beam diffraction tuning, and 11% of beam steering were achieved near wavelength of 6.55 μm.
Global Phase Correction Improves Metalens Efficiency
Authors: Zhu Dayu , Kojima Keisuke , Koike-Akino Toshiaki , Brand Matt
Published: August 2022

We introduce a fast joint optimization of unit cells across the whole metasur-face, exploiting interactions between nearby cells to produce a desired near-field profile and improving whole-lens focusing efficiency.
‘All’ Bright Toroidal Metasurface
Authors: Mallick Soumyajyoti , Chourasia Nitin , Singh Rakesh , Chowdhury Dibakar Roy
Published: August 2022

We demonstrate bright-bright coupling mediated by mode-hybridization in multi split-ring resonator based metasurface leading to antiparallel toroidal moments in the metasurface cavity.
Bound states in the continuum in plasmonic metasurfaces
Authors: Liang Yao , Chen Mu Ku , Tsai Din Ping , Kivshar Yuri
Published: August 2022

Being inspired by the structure of butterfly wings, we design and demonstrate experimentally novel types of plasmonic metasurfaces supporting high-Q collective lattice resonances (Q~89) in the mid-IR region revealed by focused light beams with large apertures.
Towards Polariton Condensation in a Red Fluorescent Protein at Room Temperature
Authors: Deshmukh Prathmesh , Satapathy Sitakanta , Liu Bin , Molinaro Paul , Dirnberger Florian , Khatoniar Mandeep , Koder Ronald , Menon Vinod
Published: August 2022

We demonstrate nonlinear increase in polariton density and thermalization at room temperature using a red emitting fluoroscent protein, mscarlett. Such fluoroscent proteins are an attractive platform to study polariton condensation and even realize condensate lattices.
Single-photon nonlinearity at room temperature
Authors: Urbonas Darius , Zasedatelev Anton V. , Baranikov Anton V. , Sannikov Denis , Scafirimuto Fabio , Shishkov Vladislav Yu. , Andrianov Evgeny S. , Lozovik Yurii E. , Scherf Ullrich , Stöferle Thilo , Mahrt Rainer F. , Lagoudakis Pavlos G.
Published: August 2022

We realize an all-optical transistor using exciton-polariton condensation, enabling nonlinearities down to single-photon level at room temperature. Sub-picosecond switching and amplification near the fundamental quantum limit are pivotal steps for energy efficient, ultrafast all-optical logic.
Photon-Pair Generation in Defect-Free Surface Modes
Authors: Weiner Matthew , Kim KW , Hu Ting-Chen , Solntsev Alexander , Blanco-Redondo Andrea
Published: August 2022

We experimentally demonstrate simultaneous generation and propagation of photon pairs in defect-free surface modes in an array of coupled sinusoidal waveguides. The measured biphoton correlations remain robust to tuning the curvature.
Nonlinear Quantum Noise Dynamics in Ultrafast Nonlinear Nanophotonics
Authors: Ng Edwin , Yanagimoto Ryotatsu , Jankowski Marc , Mabuchi Hideo
Published: August 2022

We present a split-step framework for simulating nonlinear propagation of multimode quantum noise and entanglement in ultrafast pulses, beyond conventional linearized-noise approximations. We apply our method to model state-of-the-art dispersion-engineered devices on thin-film lithium niobate.
SPDC Conversion from Bound State in the Continuum in Semiconductor Metasurfaces: Polarization Properties
Authors: Gennaro Sylvain D. , Santiago-Cruz Tomás , Mitrofanov Oleg , Vabishchevich Polina P. , Addamane Sadhvikas , Bethke Don , Reno John , Chekhova Maria V. , Brener Igal
Published: August 2022

We study the polarization properties of photon pairs emitted via spontaneous parametric down-conversion from a nonlinear metasurface driven by symmetry-protected, bound state in the continuum.