bluuebunny/crossref_metadata_2025 huggingface dataset:
QD Hybridized 2D Material-Based Nanoscroll: A New Paradigm for Polarized Photosensing and Ultralow Threshold Random Lasing
Authors: Ghosh Rapti , Hsieh Ya-Ping , Chen Yang-Fang
Published: January 2022

The spirally rolled 2D material based light-trapping nanocavity structure with QDs as scattering centers achieves unprecedently low lasing threshold (~0.008 kW cm-2) and 12 fold brighter parallel-polarized luminescence than that of the perpendicular one.(/p)(p)Twisting the morphology of the atomically thin layer of 2D materials introduces some striking physio- chemical phenomena which are significantly absent in their bulk as well as sheet counterpart. By exploiting the flexural strength, these 2D materials (eg. MoS2, WS2) can be stacked up into heterostructure, buckled up to form wavy structure, rolled up into 1D, or wrapped up into the 0D structure. Different dimensional van der Waals structure tunes the energy bandgap and hence the corresponding carrier mobility. Spirally rolling of 2D material in a unidirectional nanoscroll (NS) structure can confine the motion of the electron in the 1D axis without having any external perturbation. Photonic confinement in these nanocavities stimulates coherent lasing actions with an unprecedently low threshold. This helical 1D structure predominantly localizes the excitons in the circumferential direction giving rise to polarized photosensitivity. Upon hybridizing with high yield quantum dots, type–II band alignments are formed at the heterostructured (QD/2D) interface. The subsequent presence of strong photoabsorptive QDs generates an ample amount of excitons which enhances the photosensitivity of the NS. Thus our approach to form spirally rolled hybridized NS structure introduces exotic physical phenomena which are utilized to develop novel high-performance flexible devices toward realistic applications.
Lens Bending with Reinforcement Learning for Reduced Optical Aberrations
Authors: Fu Cailing , Stollenwerk Jochen , Holly Carlo
Published: January 2022

To automate optical system design, a Reinforcement Learning algorithm using lens improvement methods as parameter optimization or lens adding is developed. A proof of concept using lens bending is demonstrated for different learning strategies.
Label-free imaging flow cytometry for phenotypic analysis of microalgae populations using deep learning
Authors: Işıl Çağatay , de Haan Kevin , Gӧrӧcs Zoltán , Koydemir Hatice Ceylan , Peterman Spencer , Baum David , Song Fang , Skandakumar Thamira , Gumustekin Esin , Ozcan Aydogan
Published: January 2022

We report a field-portable and high-throughput imaging flow-cytometer to perform label-free phenotypic analysis of microalgae populations by extracting and processing the spatial and spectral features of their reconstructed holographic images using deep learning.
Digital holographic system of extended angle
Authors: Kukołowicz Rafał , Kozacki Tomasz , Szpygiel Jędrzej
Published: January 2022

The digital holographic system with extended angle is proposed. To achieve large angle the system with single lens, spatial filter and hologram processing is built. This work presents the concept, numerical and experimental validation.
Wavefront Sensing based on a 2D HOBBIT
Authors: Dai Kunjian , Miller J. Keith , Johnson Eric G.
Published: January 2022

In this paper we demonstrate a wavefront sensing technique based on 2D HOBBIT system. By generating perfect vortices with different beam size in real time, the beam can be used for wavefront detection.
Temperature Sensor Based on Parallel Mach-Zehnder Interferometers Using Vernier Effect
Authors: Marrujo-García Sigifredo , Hernández-Romano Iván , May-Arrioja Daniel A. , Minkovich Vladimir P. , Torres-Cisneros Miguel
Published: January 2022

A temperature sensor based on two parallel Mach-Zehnder interferometers (MZIs) using the Vernier effect is demonstrated. A sensitivity of 2.1020 nm/ °C was obtained in a range from 20 to 50 °C, which is ~ 70.35 times higher than the sensitivity of the single MZI.
Fifth-order Aberration Coefficients for Plane-symmetric Optical Systems
Authors: Liu Yuxuan , Steidle Jessica , Rolland Jannick P.
Published: January 2022

We present the analytical form of the fifth-order aberration coefficients for plane-symmetric optical systems expressed as a function of first-order system parameters and the paraxial chief and marginal ray angles and heights.
Characterization of Highly Structured High Harmonic Beams through Multiplexed Broadband Ptychography
Authors: Schmidt David , Goldberger David , De Las Heras Alba , Hernández-García Carlos , Lei Yuhao , Kazansky Peter , Adams Daniel , Durfee Charles
Published: January 2022

We demonstrate multi-modal transmission ptychography on high-order harmonic vector beams. The process retrieves highly structured beam profiles and wavefronts in addition to spectral resolution without grating dispersion.
Lighting gel filters as an alternative for low-cost optical system design in point-of-care applications
Authors: Ruiz Alberto J. , Giallorenzi Mia K. , Hunt Brady , Samkoe Kimberley , Pogue Brian W.
Published: January 2022

Optical characterization of lighting gel filters demonstrates their viability as low-cost alternatives to dielectric and colored glass filters, with the potential for significant advantage in fluorescence and point-of-care diagnostics applications.
Camera-based omnidirectionally three-dimensional sensing for autonomous driving
Authors: Shimada Kenichi , Kawamata Ryota , Betsui Keiichi , Shimano Takeshi , Yamazaki Kazuyoshi
Published: January 2022

For autonomous driving, we propose an omnidirectional three-dimensional sensing and viewing system employing monocular stereo camera which has both ranging and recognition function. In this system, four monocular stereo cameras, which are located at the corner of ego- vehicle, measure relatively short distance around each camera. Then, long-baseline stereo camera composed of adjacent two cameras among the four cameras measure relatively long distance. We will report the simulated and experimental results of ranging performance of the system.
Quantum Light Emitting Diodes and their Applications
Authors: Stevenson R. Mark , Müller Jonathan R. A. , Shooter Ginny , Anderson Matthew , Skiba-Szymanska Joanna , Müller Tina , Huwer Jan , Krysa Andrey B. , Farrer Ian , Ritchie David A. , Heffernan Jon , Shields Andrew J.
Published: January 2022

Quantum light emitting diodes are important for many secure quantum networking applications. Here, we address some remaining practical challenges, and present progress in improving the electrical frequency, fiber compatibility and optical coherence of these devices.
Precision Laser Stabilization using Photonic Integrated Coil Resonator
Authors: Liu Kaikai , Chauhan Nitesh , Wang Jiawei , Morton Paul A. , Behunin Ryan , Blumenthal Daniel J.
Published: January 2022

We report laser stabilization with record low frequency noise of 0.08 Hz2/Hz at 70 kHz offset and a 150 Hz integral linewidth using an integrated 4-meter waveguide coil resonator with 144 Million intrinsic Q.
Monolithic InP 100-Port Optical Phased Array
Authors: Komatsu Kento , Kohno Yusuke , Nakano Yoshiaki , Tanemura Takuo
Published: January 2022

We design and fabricate the largest-scale InP-based optical phased array (OPA) with 100 waveguides. Beam steering with more than 80 resolvable points and the response time of less than 16 ns are demonstrated experimentally.
Metal-enhanced fluorescence: More than we thought
Authors: Rasskazov Ilia L. , Moroz Alexander , Carney P. Scott
Published: January 2022

We show that in metal-dielectric core-shell nanoparticles, unusually thick dielectric coatings produce extreme fluorescence enhancement with enhancement factor

F
¯

≳
3000

for emitters located near Au@dielectric spherical particles under realistic conditions.
High-Finesse Surface Acoustic Wave Cavities on Etched-Groove GaAs
Authors: Wang Zixuan , Imany Poolad , DeCrescent Ryan A. , Boutelle Robert C. , McDonald Corey A. , Autry Travis M. , Mirin Richard P. , Silverman Kevin L.
Published: January 2022

We demonstrate etched-groove surface acoustic wave cavities on gallium arsenide with finesses reaching 100. These cavities can be used to enhance coupling between phonons and different quantum systems, providing a platform for quantum transduction.
Silicon Waveguides and Resonators with Sub-0.1 dB/cm Propagation Loss and Over 7 Million Q in a Foundry Process
Authors: Onural Deniz , Gevorgyan Hayk , Zhang Bohan , Khilo Anatol , Popović Miloš A.
Published: January 2022

Propagation loss is characterized vs. waveguide width in a 220 nm silicon photonics foundry platform to form a compact model. Test paperclips and racetrack resonators with quality factors up to 7.6 million reveal losses as low as 0.064 dB/cm.
An optical neural network operating with less than 1 photon per multiplication
Authors: Wang Tianyu , Ma Shi-Yuan , Wright Logan G. , Onodera Tatsuhiro , Richard Brian , McMahon Peter L.
Published: January 2022

We report an experimental demonstration of an optical neural network performing image classification with high accuracy using less than a single photon per scalar multiplication, validating theoretical predictions about quantum-limited performance of ONNs.
Theory and experiment for resource-efficient joint weak- measurement
Authors: Martinez-Becerril Aldo C. , Bussières Gabriel , Curic Davor , Giner Lambert , Abrahao Raphael A. , Lundeen. Jeff S.
Published: January 2022

Weak measurement allows the measurement of two incompatible observables, a ‘joint weak-measurement’ (JWM). Until now, JWM uses one read-out, a separate system, per observable. We demonstrate a JWM technique which requires only one read-out.
Interferometry-Based Astronomical Imaging Using Nonlocal Interference with Single-Photon States
Authors: Brown Matthew , Thiel Valerian , Allgaier Markus , Raymer Michael , Smith Brian , Kwiat Paul , Monnier John
Published: January 2022

Recent proposals suggest that a distributed single-photon would outperform weak coherent or thermal states as a phase reference for long-baseline interferometry of dim sources. We demonstrate experimental results toward confirming this prediction.
In Search of the Optimum Information Rate and Symbol Rate in PS-QAM Systems to Enable Highly Efficient Optical Transport Networks
Authors: Vassilieva Olga , Kim Inwoong , Palacharla Paparao
Published: January 2022

We demonstrate how optimization of information rates and symbol rates in flexible transponders utilizing Probabilistic Constellation Shaping (PCS) can maximize transmission reach and SE x reach product for high speed optical transmission networks.
Optical Hybrid-based Optimal Receiver Design for Entanglement-Assisted Communication
Authors: Bhadani Rahul , Djordjevic Ivan B.
Published: January 2022

We propose an optical hybrid (OH) based receiver to discriminate phase-shift-keying modulated information that is transmitted using entanglement-assisted (EA) communication. Our numerical result demonstrates that OH-based receivers perform 10% better in terms of error probability and approximately 50% in terms of Shannon’s capacity compared to the previously proposed receiver design.
Measurement angular error in continuous-variable quantum key distribution
Authors: Shen Tao , Huang Yundi , Wang Xiangyu , Tian Huiping , Chen Ziyang , Yu Song
Published: January 2022

We propose a theoretical model of the measurement angular error in the CV-QKD using homodyne detection, and corresponding simulation results are depicted to show its impacts on system performance.
Tunable dual-channel integrated filters on thin-film lithium niobate with ultranarrow linewidth
Authors: Abdelsalam Kamal , Ordouie Ehsan , Vazimali Milad G. , Juneghani Farzaneh A. , Kumar Prem , Kanter Gregory S. , Fathpour Sasan
Published: January 2022

We present a tunable dual-channel phase-shifted Bragg-grating filter on thin-film lithium niobate with an extinction ratio of 27 dB and channel linewidth of 19 pm and spacing of 19 GHz.
Fast and Simple One-Way High-Dimensional Quantum Key Distribution
Authors: Sulimany Kfir , Dudkiewicz Rom , Korenblit Simcha , Eisenberg Hagai S. , Bromberg Yaron , Ben-Or Michael
Published: January 2022

We propose and analyze a novel high-dimensional quantum key distribution protocol. We implement the protocol using a software update in a standard two-dimensional system and observe a twofold enhancement in the secure key rate.
Optical firewall for defending deep neural networks from adversarial attacks
Authors: Kravets Vladislav , Javidi Bahram , Stern Adrian
Published: January 2022

We overview approaches that we have recently introduced that employ optical encrypted acquisition to defend against adversarial attacks on deep learning algorithms.
8x8 Programmable Many-Mode Interferometer Operating with Visible-Wavelength Piezo-Cantilever Modulators
Authors: Dong Mark , Leenheer Andrew J. , Zimmermann Matthew , Clark Genevieve , Heim David , Dominguez Daniel , Gilbert Gerald , Englund Dirk , Eichenfield Matt
Published: January 2022

We report a visible-wavelength, programmable 8x8 many-mode interferometer based on silicon nitride waveguides and piezo-cantilever optical phase-shifters with sub 1-μs response times to address applications in photonics and quantum technologies.
III-V Photodiode Illumination with Bi-layer Silicon Nitride Grating Coupler
Authors: Yin Peichuan , Carey Victoria A. , Creazzo Timothy , Yao Peng , Prather Dennis W. , Preble Stefan
Published: January 2022

To investigate the viability of on-chip grating couplers as illuminators, we present a III-V detector illuminated with a bi-layer silicon nitride grating coupler. A responsivity of 0.233 A/W was obtained, corresponding to a measured fiber-to-detector efficiency of 40%.
Vortex crystals in optically trapped exciton-polariton condensates
Authors: Sitnik K.A. , Alyatkin S. , Sigurdsson H. , Lagoudakis P. G.
Published: January 2022

We engineer and demonstrate trapped polariton condensate, occupying two states described by Ince-Gaussian modes. The beating of lasing modes leads to rapidly oscillating vortices on a picosecond timescale.
Femtosecond Laser-Induced Polarization-Controlled Birefringence inside Nd:YAG Single Crystal
Authors: Lipateva T. O. , Lipatiev A. S. , Fedotov S. S. , Okhrimchuk A. G. , Lotarev S. V. , Sigaev V. N.
Published: January 2022

Laser-induced polarization-controlled birefringence (PCB) with unprecedent thermal resistance has been demonstrated in Nd: YAG crystal for the first time. Laser writing of PCB is promising for the development of novel crystal-based optical elements.
Optimizing direct-field acceleration of electrons by tuning the Gouy phase
Authors: Pelchat-Voyer Shanny , Piché Michel
Published: January 2022

We show using test-particle simulations that the energy gain from direct-field acceleration can be improved by up to 50 % using paraxial radially polarized laser pulses with a total Gouy phase variation under 2π.
Quantitative Phase Imaging by Automatic Phase Shifting Generated by Phase-only Spatial Light Modulator
Authors: Ibrahim Dahi Ghareab Abdelsalam , Abdelazeem Rania M.
Published: January 2022

We describe a simple phase shifting method with no moving parts based on grayscale levels of spatial light modulator. Four images with different shifts were generated and reconstructed to quantify the phase of test object.
Polariton-mediated coupling of quasi-degenerate porphyrin excitons
Authors: Avramenko Aleksandr G. , Rury Aaron S.
Published: January 2022

Polariton formation involves the hybridization of molecular and cavity photon excitations. We examine how the hybridization of two nearly degenerate excitons depend on their collective coupling to the photonic fluctuations in a single cavity mode.
Quantum Shadow Imaging with Thermal Light
Authors: Niu Ziqi , Cuozzo Savannah L. , Barge Pratik J. , Lee Hwang , Cohen Lior , Mikhailov Eugeniy E. , Novikova Irina
Published: January 2022

We show that the shapes of opaque objects can be recovered with a few-photon thermal light using spatial quantum noise analysis. Our method is immune to the camera dark noise thanks to camera-based homodyne detection.
Theory of Transient Magneto-Electric Rectification
Authors: Smail Gregory , Rand Stephen C.
Published: January 2022

Ultrafast transient behavior of magneto-electric (M-E) rectification is investigated with the magnetic torque model. Unlike all-electric nonlinearities, the speed and amplitude of the M-E rectification moment depends strongly on molecular properties.
Mode-Locked Fiber-Laser Repetition-Frequency Stabilization using a Low-cost FPGA board
Authors: Barot Dipen , Feldman Ari D. , Washburn Brian R.
Published: January 2022

We demonstrate repetition frequency stabilization of a mode-locked laser using an FPGA board and open-source software. The stabilized repetition frequency exhibited low timing jitter and an Allan variance of 8×10−12 at 100 s gate time.
Custom Terahertz Pulses for Nonlinear Vibrational Excitation
Authors: Rader Claire , Knighton Brittany E. , Zaccardi Zachary B. , Michaelis David J. , Johnson Jeremy A.
Published: January 2022

We combine THz pulses from two complimentary crystals to increase peak field strength and create a broad, smooth spectrum. We show the utility of using this strong THz pulse to nonlinearly excite vibrations in solids.
Modeling Ultrafast Anharmonic Vibrational Coupling in Gas-Phase Fluorobenzene Molecules
Authors: Alejandro Aldair , Nelson Emma E. , Sevy Eric T. , Johnson Jeremy A.
Published: January 2022

We use first-principles calculations to model ultrafast anharmonic coupling in gas-phase fluorobenzene after excitation with a multi-THz pump. Understanding intramolecular energy flow is crucial to understanding collisional energy transfer.
Free Space Wavelength Division Multiplexing Around 1550 nm Using PQ:PMMA Transmission Holograms
Authors: Gamboa Julian , Hamidfar Tabassom , Vonckx Joseph , Fouda Mohamed , Shahriar Selim M.
Published: January 2022

We demonstrate PQ:PMMA transmission holograms for free space wavelength division multiplexing around 1550 nm, which can be used in free-space communication systems that require eye-safe lasers. The wavelength can be customized during fabrication.
Thermal and Loss Characterization of Mechanically Released Whispering Gallery Mode Waveguide Resonators
Authors: Robison Samuel L. , Grine Alejandro J. , Wood Michael G. , Serkland Darwin K.
Published: January 2022

We present an empirical methodology for thermally characterizing and determining absorption and scattering losses in released ring whisper gallery mode optical resonators. We used the methodology to deduce absorption and scattering contributions in Q = 308,000 silicon nitride resonators coupled to on-chip waveguides.
Features Extraction and Classification Methods for Automatic Selection of Two Different Types of Paint for Automotive Parts
Authors: Martínez Deborah , Guzmán-Cabrera Rafael , May-Arrioja Daniel A. , Hernández-Romano Iván , Torres-Cisneros Miguel
Published: January 2022

Two different white paint tones are evaluated using a Convolutional Neural Network to extract the vector characteristics. The results show that our method can select the correct tone with 100 % of precision.
Monitoring of the Gold nanoparticles during preparation processes
Authors: Esmaeili Shahriar , Rajil Navid , Hemmer Philip , Scully Marlan
Published: January 2022

We have fabricated the AuNPs and monitored their photophysical properties at different fabrication stages using electron microscopy and dynamic light scattering. This study enables us to observe the changes in the AuNPs during the nucleation.
Analysis of Solid-core Photonic Crystal Fiber for Confinement Loss and Birefringence with Square Air Hole Layers
Authors: Singh Ritu Raj , Srivastava Devansh , Bhattacharya Wridheeman
Published: January 2022

The solid core photonic crystal fiber with square-shaped air hole layers around the core is designed and analyzed by varying the number of rings (n). Increase in the number of rings results to decrease in mode confinement loss and increase in birefringence.
Light Field Alpha Matting Based on Propagation by Spatio-angular Consistency
Authors: Liu Tianyi , Liu Chang , He Di , Qiu Jun
Published: January 2022

Light field alpha matting is achieved by propagating the closed form solution of the central view image matting of the light field to other views, which is based on propagation model by intrinsic spatio-angular consistency.
Decay of a Single Atom Coupled to One-dimensional Guided Photonic Modes
Authors: Patrick Logan , Arshad Umar , Khatiwada Pawan , Mirza Imran
Published: January 2022

Emitters coupled to waveguides have emerged as ideal platforms to achieve strong light-matter interaction in recent experiments. Here, we study the decaying of an atom into one-dimensional guided photonic modes using the master equation approach.
Hybrid Electro-Optical Pumping of Active Plasmonic Nanostructures
Authors: Vyshnevyy Andrey A. , Fedyanin Dmitry Yu.
Published: January 2022

We propose hybrid electro-optical pumping of active plasmonic structures and, using comprehensive self-consistent numerical simulations, demonstrate that this hybrid approach can outperform both pure electrical pumping and pure optical pumping and enable novel functionalities.
Nonlinear Conversion of Orbital Angular Momentum States of light
Authors: Bassène Pascal , Buldt Finn , Rumman Nazifa , Wang Tianhong , Heitert Phillip , N’Gom Moussa
Published: January 2022

We investigate the second harmonic generation of light field carrying orbital angular momentum in bulk χ(2) material. We show that due to conservation of energy and momentum, the frequency doubled beam light has a modified spatial distribution and mode characteristics. Through rigorous phase matching conditions, we demonstrate efficient mode and frequency conversion based on three-wave nonlinear optical mixing.
Qualitative Concentration Analysis of Glucose in a solution using Spectroscopic Measurement
Authors: Hamdy Omnia , Abdelhalim Ibrahim , Ismail Tawfik
Published: January 2022

Glucose concentration change in solution was recorded by studying transmission and absorption coefficient at different laser wavelengths, showing decrease in transmittance and increase in absorption coefficient due to increased glucose concentration.
Numerical Aperture for Photon Detection within Shifted Position-Diffuse Reflectance Imaging
Authors: Späth Moritz , Hohmann Martin , Rohde Maximilian , Klämpfl Florian
Published: January 2022

Shifted position-diffuse reflectance imaging is used to non-invasively assess microcirculation. In this study, it is investigated whether a cut-off angle in the detection of the reflected photons is obligatory for the success of the technique.
Effect of Al2O3 Content on Laser Writing of Form Birefringence in Sodium Aluminoborate Glass
Authors: Lipatiev A. S. , Fedotov S. S. , Lotarev S. V. , Lipateva T. O. , Sigaev V. N.
Published: January 2022

Nanogratings formation inside sodium aluminoborate glass is demonstrated. The structure of nanogratings is similar to that obtained in sodium borate glass, which has a main feature as a large period of 0.5-0.6 µm between nanoplanes.
Spectral shaping in a multimode fiber by transmission matrix engineering
Authors: Finkelstein Zohar , Sulimany Kfir , Resisi Shachar , Bromberg Yaron
Published: January 2022

We experimentally demonstrate spectral shaping in a multimode fiber by macro-bend based transmission matrix engineering. We implement an all-fiber spectral filter and demonstrate a tunable bandpass filter with spectral resolution of 0.4nm.
Suppressing the Non-linear Fiber Background in Multimode Fiber Endoscopy
Authors: Trägårdh Johanna , Pikálek Tomáš , Stibůrek Miroslav , Amezcua-Correa Rodrigo , Antonio-Lopez José Enrique , Čižmár Tomáš
Published: January 2022

We demonstrate a composite probe, based on a GRIN multimode fiber, where the non-linear fiber background, apparent in non-linear Raman imaging, is suppressed, while the GRIN fiber bandwidth is retained.
Efficient and Ultra-Compact Nanoplasmonic Mach-Zehnder Interferometer Design Using Air-Gap Couplers
Authors: Wahsheh Rami A.
Published: January 2022

We introduce a novel design and analysis of an ultra-compact nanoplasmonic Mach- Zehnder interferometer with high coupling efficiency and wide spectrum range. Our results indicate that the proposed design can be used in biosensor applications.
Stimulated Brillouin Scattering-Induced All-Optical Spectrum Sensing
Authors: Kadum Jaffar Emad , Das Ranjan , Misra Arijit , Schneider Thomas
Published: January 2022

We report a spectrum sensing technique for RF signals. A multi-channel signal discrimination is illustrated based on the group delay by Brillouin scattering-induced transparency. The technique is reconfigurable and feasible for broad spectrum bands.
Graphene-based Photonic C-H bond activation
Authors: Ulin-Avila Erick , Mishra Akhilesh Kumar
Published: January 2022

C-H bond activation is critical for the realization of photosynthesis. We present a graphene-based spectroscopic technique (J. Phys. Chem. C 2021, 125, 7, 3811) [1] that controls the C-H bond Raman modes allowing for the study of thermodynamic changes at the molecular level.
Effects of nonlinear absorptions on Airy pulses supercontinuum in a cubic-quintic AsSe2/As2S5 rib optical waveguide
Authors: Mandeng Lucien Mandeng , Heuteu Crépin , Boukar Souang Kemedane , Tchawoua Clément
Published: January 2022

The nonlinear absorptions reduce the appearance of Airy dispersive waves. The three-photon absorption is found to be a good tool to control two-photon absorption in the interaction between cubic and quintic nonlinearities for long wavelengths.
Nanocomposites Synthesis From a Biogenic Material: Optical and Spectroscopic Properties.
Authors: Arcuri M , Castillo J , Piscitelli V
Published: January 2022

This work describes two methos of synthesis of nanocomposites from biogenic material and their spectroscopy and optical properties, quantitative analysis by LIBS and SPR response in order to determine the variations in energy bandgap.
ABCD Matrix Approach to Dual-Image Formation from a Chiral Fresnel Lens
Authors: Buaossa Nagi A. , Chatterjee Monish R.
Published: January 2022

Optical ray path analyses are applied to a planar lossy chiral Fresnel lens (CFL) configuration, leading to relevant ABCD parameters (for RCP & LCP modes) and consequent dual- image formation. Preliminary results are discussed relative to tunability and other imaging properties of the CFL.
Towards Noncritical Phasematching in Thin-film Lithium Niobate Frequency Converters
Authors: Kuo Paulina S.
Published: January 2022

We present a study of noncritical phasematching in thin-film, periodically poled lithium niobate waveguides. Noncritical phasematching relaxes fabrication tolerances and is needed for long devices or when ideal tuning curves are required.
Lasing from GaAs Nanowires on Fe Films
Authors: Aman Gyanan , Fränzl Martin , Lysevych Mykhaylo , Tan Hark Hoe , Jagadish Chennupati , Schmitzer Heidrun , Cahay Marc , Wagner Hans Peter
Published: January 2022

We demonstrate optically pumped nearly photonic lasing from highly Zn-doped GaAs nanowires (NWs) on Fe films at 77 K. High Zn-doping enhances the radiative recombination rate and the material gain to overcome the plasmonic losses of Fe.
Optical Combs Generation using a Graphene-based Source in comparison with MZM Configurations
Authors: Giraldo Karen Arroyave , Cortés Jhon Anderson Lopera , Torres Jhon James Granada , Caro Juan Diego Zapata
Published: January 2022

We propose a multiwavelength graphene-based source and compare with two configurations of Mach-Zehnder-modulator comb generators for WDM-PON application. The performance showed penalties less than 0.2 dB for transmission over 20 km of optical fiber.
Ultrafast Optical Analog of Gas-Plasma Marcuse Effect Induced by Ultrashort Laser Pulses in Semiconductors
Authors: Gruzdev Vitaly
Published: January 2022

We theoretically show feasibility of generating low-collision-rate free-carrier plasma by intense ultrashort infrared laser pulses in semiconductors that coherently amplifies low-power laser pulses by stimulated inverse bremsstrahlung.
Erbium-doped Chirped Pulse All-fiber Laser for Raman Distributed Temperature Sensor
Authors: Fedorenko Aleksander Yu. , О.Orekhov Ilya , Sazonkin Stanislav G. , Dvoretskiy Dmitriy A. , Denisov Lev K. , Karasik Valeriy E.
Published: January 2022

We present a chirped pulse erbium-doped all-fiber hybrid mode-locked laser as a source of high-energy probe pulses in a Raman distributed temperature sensor with high spatial resolution.
Machine Learning-Aided At-Line Detection of Bacterial marker NA for Cell Manufacturing
Authors: Huang Jiayi , Ahmed Thiara Sana , Baranski Maciej , Lee Elizabeth , Chelvam Shruthi Pandi , Wu Ying Ying , Ram Rajeev , Rice Scott , Yong Derrick , Springs Stacy
Published: January 2022

We show a machine learning-aided UV spectroscopy-based method using aseptic instrumentation to detect metabolite NA, a marker of microbial contamination. This potentially enables rapid, at-line microbial contamination detection in cell manufacturing.
On the efficacy of classical deep learning methods on quantum information science
Authors: Lohani Sanjaya , Kirby Brian T. , Glasser Ryan T. , Searles Thomas A.
Published: January 2022

We study the efficacy of deep learning-based quantum state reconstruction methods with respect to inference and training, and then implement the reconstruction technique on an IBM quantum computer.
Simple self-interference microscope design with geometric phase lens and polarization camera
Authors: Chernykh Aleksey V. , Georgieva Alexandra O. , Ezerskii Aleksei S. , Petrov Nikolay V.
Published: January 2022

We investigate an optical scheme and possibilities of digital holographic microscope with a geometrical phase lens. The phase imaging capability for micro-objects is verified.
Experimental evaluation of inhomogeneous nonlinear refractive index distribution using time-resolved inline digital holography
Authors: Belashov A. V. , Nalegaev S. S. , Shevkunov I. A. , Putilin S. E. , Lin Y.C. , Cheng C. J. , Petrov N. V.
Published: January 2022

Time-resolved inline digital holography was validated during study of nonlinear optical properties of graphene microparticles on the sample glass. A set of probe pulse inline digital holograms were recorded and compared with numerically simulated data.
Revisiting the photonic spin-Hall effect upon reflection and refraction
Authors: Zhang Zan , Xiao Weilai , Ling Xiaohui
Published: January 2022

We revisit the photonic spin-Hall effect upon reflection/refraction and find the reflected/refracted beam contains a spin-maintained component and a spin-flip one acquiring different geometric Berry phases and distinct spin-Hall shifts.
Robust Direct Laser Image Recognition of Vehicle Parts Among Self-driving
Authors: Zhang Hongbo , Zhou Wenjing , Lin Jie , Williamson Isreal , Idewu Wakeel , Cao Deng
Published: January 2022

Direct laser image recognition method is developed for recognition of different parts of vehicle among self-driving. Results show the method is robust for both red and green lasers and different weather and time conditions.
Low power thresholds of sideband generation in the high-finesse χ(2) resonators with large walk-off
Authors: Puzyrev D.N. , Pankratov V.V. , Skryabin D.V.
Published: January 2022

We report the nano-watt thresholds of the sideband generation in the χ(2) microresonators. The practical and hence large difference of the repetition rates, i.e., walk- off parameter, between the pump and harmonic plays a pivotal role in our results.
Coherent Octave-spanning Comb-like Supercontinuum Generation in a Cascaded Structure
Authors: Zhou Kangzhu , Li Qian
Published: January 2022

We propose a structure containing the micro-resonator and a silicon-rich nitride waveguide to obtain the coherent octave-spanning comb-like supercontinuum, which is excited in the micro-resonator firstly and then broadened in the waveguide.
Expanding the Field of View in Off-Axis Digital Holography by Using A Holographic Optical Element
Authors: Pensia Lavlesh , Kumar Raj
Published: January 2022

We have developed a novel single shot, triple field of view, off-axis digital holographic method by using a multiplexed holographic optical element in front of the image sensor organized as a matrix of pixels.
Determination of the photoelastic constants of silicon nitride using piezo-optomechanical photonic integrated circuits and laser Doppler vibrometry
Authors: Koppa Matthew A. , Dong Mark , Heim David , Leenheer Andrew J. , Zimmermann Matthew , Dominguez Daniel , Gilbert Gerald , Englund Dirk , Eichenfield Matt
Published: January 2022

We measure the photoelastic constants of piezo-optomechanical photonic integrated circuits incorporating a specially formulated, silicon-depleted silicon nitride thin films using a laser doppler vibrometer to calibrate the strain produced by the integrated piezoelectric actuators.
Theoretical Framework for Analysing Statistical Properties of Partially Coherent V-point Beams
Authors: Joshi Stuti , Khan Saba N. , Senthilkumaran P.
Published: January 2022

A generalized theoretical model for investigating the statistical properties of the family of partially coherent V-point polarization singular beams is discussed here. Coherence-induced changes in the intensity, degree-of-polarization, degree-of-coherence, and state-of-polarization are studied theoretically and verified experimentally.
Generation of Vector Platicons and Hybrid Soliton-Platicon Complexes in Optical Microresonators via Modulated Pump
Authors: Lobanov Valery E. , Shitikov Artem E. , Galiev Ramzil R. , Min’kov Kirill N. , Borovkova Olga V. , Kondratiev Nikita M.
Published: January 2022

We demonstrate numerically the possibility of generation of vector platicons having orthogonally polarized components by the modulated pump at normal GVD. Dynamics of this process can be controlled by pump polarization and depends on the distance between pumped modes and on the difference of their FSRs. We also show the possibility of excitation of soliton-platicon complexes.
Morphological and Thermal Characterization of Starch- Based Elastomers
Authors: N Pooja , Banik Soumyabrata , Chakraborty Ishita , Mal Sib Sankar , Mahato K. K. , Srisungsitthisunti Pornsak , Mazumder Nirmal
Published: January 2022

Novel elastomers are synthesized from corn and potato starch with potential application in the fabrication of biodegradable microfluidic devices. The developed elastomers were subjected to morphological and thermal characterization.
Soliton molecules in a dispersion-managed Tm-doped fiber laser utilizing black phosphorus at near zero dispersion
Authors: Zhang Qian , Zhang Meng , Jin Xinxin , Zheng Zheng , Hasan Tawfique
Published: January 2022

We report, for the first time to the best of our knowledge, the observation of various soliton molecules in a dispersion-managed thulium-doped fiber laser mode-locked by a black phosphorus saturable absorber at near zero dispersion.
All-Optical Control of High-Harmonic Photon Energy
Authors: Oldal Lénárd Gulyás , Ye Peng , Filus Zoltán , Csizmadia Tamás , Grósz Tímea , De Marco Massimo , Bengery Zsolt , Seres Imre , Gilicze Barnabás , Jójárt Péter , Varjú Katalin , Kahaly Subhendu , Major Balázs
Published: January 2022

We propose a technique to control the spectral characteristics of high-harmonic sources. The method is easily implementable in any attosecond-pulse generation beamline, regardless of the driving laser, thereby satisfying different experimental needs.
Evaluation of the abstraction of optical topology models in blockchain-based data center interconnection
Authors: Alemany Pol , Vilalta Ricard , Muñoz Raul , Casellas Ramon , Martínez Ricardo
Published: January 2022

Data center (DC) interconnection allows us to have optical transmissions between DCs directly connected to optical networks, avoiding the use of a packet-based infrastructure. Thanks to the use of next-generation pluggable coherent optics, it is possible to create connectivity services (CSs) across multiple optical transport domains. In this multi-domain CS scenario, cloud operators and transport operators have to work together in the most dynamic way possible. To do so, they need a common place (i.e., a market) where the transport operators may expose their available optical resources and the cloud operators request (e.g., rent) them to be used in order to create end-to-end (E2E) CSs between DCs. Having multiple transport operators exposing their resource information in a common place requires a set of common rules (i.e., how much of the topology to show) to create E2E CSs requested between cloud operators. This paper makes use of the blockchain technology to present a blockchain-based extension for the software-defined network (SDN) architecture to allow each optical transport operator domain to become a peer in a blockchain network. In there, each peer follows the same rules and shares the same exact level of topology information by using a specific abstraction model to map the optical domain resources. This paper uses a set of three different abstraction models to validate their behavior on a blockchain system when managing multiple domain resources and the deployment of CSs across these domains. To do so, an experimental comparison on how the different abstraction models affect the performance of the blockchain system is presented.
Optical Magnus radiation force and torque on a dielectric layered cylinder with a spinning absorptive dielectric core
Authors: Mitri F. G.
Published: January 2022

A dielectric cylindrical shell material with an inner stationary absorptive core (or, equivalently, a concentric layered cylinder) illuminated by an axisymmetric wave field (in 2D) with arbitrary polarization will experience a time-averaged radiation force along the direction of wave propagation, whereas the transverse component vanishes as required by symmetry. Counterintuitively, the present analysis shows that when the inner absorptive core material rotates with an initial angular velocity

Ω
0

around its main geometrical axis, a transverse radiation force component arises (in addition to a longitudinal force) as well as an axial radiation torque component in plane waves. This phenomenon is the analog of the classical hydrodynamic Magnus effect. In this analysis, the instantaneous rest-frame theory and the modal series expansion method in cylindrical coordinates are utilized to formulate the EM/optical scattering from a cylindrical shell with arbitrary thickness, and to compute the optical radiation force and torque vector components. Particular emphases are given on the size parameter of the cylindrical shell, the layer thickness, the angular rotation of the inner absorptive core, and the polarization (TM or TE) of the incident plane waves. Numerical computations illustrate the analysis and explicate the behaviors of the longitudinal, transverse, and axial radiation force and torque components. Related applications for the optical Magnus effect in radiation force and torque investigations can benefit from the results of the present analysis in spin-optics, rotational Doppler shift for optical waves, optical tweezers, optical manipulation of elongated spinning objects, and particle rotation.
Dual-core optical fibers for efficient mid-infrared generation via third-order frequency mixing and coupling-length phase matching
Authors: Su Jing , Biaggio Ivan
Published: January 2022

Appropriately designed dual-core fibers using coupling-length phase matching (CLPM) allow for phase-matched frequency downconversion over wide frequency intervals using the third-order optical nonlinearity of glass. By tuning the distance between the two cores, CLPM allows continuously tunable phase matching for widely different wavelengths for the process in which a pump wave at a frequency

ω
2

generates or amplifies two waves with frequencies

ω
3

>

ω
2

and

ω
1

=
2

ω
2

−

ω
3

. The intensity-dependent correction that accounts for nonlinear phase modulation is derived in general. In addition, a specific CLPM configuration is found to be insensitive to phase modulation, and can achieve 100% theoretical quantum yield for pump wave injection in one core. Fiber-based frequency converters can thus be designed for large differences between pump wavelengths and generated wavelengths, with the phase-matched interaction enabling the use of meter-long fibers to compensate for low third-order susceptibilities. Examples of fiber designs for pump wavelengths at 1.3 and

1.55

µ

m

, to generate radiation with wavelengths longer than

2

µ

m

, are discussed for silica and fluoride fibers.
Nondispersing Multi-Electron Trojan-Like Wavepackets on Synchronous Langmuir Type-(1) “Bulb Wire” Trajectories
Authors: Kalinski Matt
Published: January 2022

Multi-electron extension of the Trojan-like wave packets on the Langmuir Type-(1) He configurations is discovered with the electrons synchronously falling, accelerating and stopping on regular polygon trajectories and hopping between their vertices.
Room-Temperature Strong Coupling to Plasmonic Nanocavities
Authors: Pelton Matthew
Published: January 2022

We have demonstrated induced transparency and strong coupling between a single colloidal quantum dot and plasmonic metal nanocavities at room temperature. These structures have the potential to serve as ultrafast, low-power, nanoscale optical modulators.
Low-energy electrodynamics and optical signatures of excitonic insulator state in Ta2NiSe5
Authors: Haque Sheikh Rubaiat Ul , Michael Marios H. , Zhu Junbo , Zhang Yuan , Windgaetter Lukas , Latini Simone , Zhang Gu-Feng , Zhang Jingdi , Rubio Angel , Checkelsky Joseph G. , Demler Eugene , Averitt Richard D.
Published: January 2022

We performed infrared pump-terahertz probe spectroscopy on the excitonic insulator, Ta2NiSe5. Parametric amplification of an IR-active phonon exhibits an order parameter-like temperature dependence, suggesting a novel approach to monitor exciton condensate dynamics.
Autoionizing states in attosecond spectroscopy
Authors: Argenti Luca
Published: January 2022

Autoionizing states are pervasive features of atomic and molecular ionization processes. We illustrate how the evolution of autoionizing states in polyelectronic atoms can be monitored and controlled with attosecond pump-probe photoelectron and transient- absorption spectroscopy.
Correlation-based multiplexing of spectral channels and fiber-optic sensors using unmodulated continuous-wave distributed feedback diode lasers
Authors: López Jorge H. , Shlyagin Mikhail G. , Martínez-Manuel Rodolfo
Published: January 2022

In this Letter, we demonstrate a method for the multiplexing of spectral channels and fiber-optic sensors. The method makes use of the correlation-based demultiplexing technique. In our approach, each light source has an inherent phase noise which we propose to use as a “fingerprint” for correlation-based recognition and demultiplexing of spectral channels as well as signals from different sensors in each spectral channel. The proposed method requires for its implementation an extremely simple and robust scheme and can be attractive for budget-sensitive applications. As active elements, it uses only two standard free-running CW distributed feedback (DFB) diode lasers. No modulators or optical filters are required for operation. Results of proof-of-concept experiments are presented for the interrogation of several ultra-weak fiber Bragg gratings (FBGs) with reflectivity of 0.05% in a 4-km-long fiber for temperature measurements with the resolution of 0.1°C.
Enhanced sensing performance from trapezoidal metallic gratings fabricated by laser interference lithography
Authors: Chai Yuwei , Li Fangfang , Wang Junyi , Karvinen Petri , Kuittinen Markku , Kang Guoguo
Published: January 2022

Nanograting-based plasmonic sensors are widely regarded as promising platforms due to their real-time label-free detection and ease of integration. However, many reported grating structures are too complicated to fabricate, which limits their application. We propose a 1D bilayer metallic grating with trapezoidal profile as a near-infrared plasmonic sensor in the spectral interrogation. Trapezoidal gratings tend to perform better than rectangular gratings as sensors, particularly as they can detect at oblique incidence to obtain higher performance. Furthermore, we have successfully fabricated such a grating with a period of 633 nm over a 2.25 cm2 area using a two-step approach based on laser interference lithography. Glucose detection has been conducted to experimentally validate the sensing performance of the as-prepared grating. The measured sensitivity and figure-of-merit can reach up to 786 nm/RIU and 30, respectively. Our research sheds new light on the development of cost-effective sensing devices.
Coherent mechanical noise cancellation and cooperativity competition in optomechanical arrays
Authors: de Jong Matthijs H. J. , Li Jie , Gärtner Claus , Norte Richard A. , Gröblacher Simon
Published: January 2022

Studying the interplay between multiple coupled mechanical resonators is a promising new direction in the field of optomechanics. Understanding the dynamics of the interaction can lead to rich new effects, such as enhanced coupling and multi-body physics. In particular, multi-resonator optomechanical systems allow for distinct dynamical effects due to the optical cavity coherently coupling mechanical resonators. Here, we study the mechanical response of two SiN membranes and a single optical mode, and find that the cavity induces a time delay between the local and cavity-transduced thermal noises experienced by the resonators. This results in an optomechanical phase lag that causes destructive interference, cancelling the mechanical thermal noise by up to 20 dB in a controllable fashion and matching our theoretical expectation. Based on the effective coupling between membranes, we further propose, derive, and measure a collective effect, cooperativity competition on mechanical dissipation, whereby the linewidth of one resonator depends on the coupling efficiency (cooperativity) of the other resonator.
Mode crossing induced soliton frequency comb generation in high-Q yttria-stabilized zirconia crystalline optical microresonators
Authors: Lin Guoping , Sun Tang
Published: January 2022

We demonstrate for the first time, to the best of our knowledge, the fabrication of high-

Q

crystalline optical microresonators from cubic yttria-stabilized zirconia (YSZ). Intrinsic

Q

factors up to 80 million are obtained, indicating an upper bound absorption coefficient of

0.001
 

cm

−
1

for YSZ crystals at the telecom wavelength. Through laser-scanned spectroscopy on a few-mode YSZ microresonator with a radius of 300 μm, we find that the mode crossing effect in the case of weak coupling can induce a repelling disruption of free spectral range values between transverse mode families. Generation of soliton and soliton crystals in such a YSZ microcomb platform operated in the normal dispersion regime is observed. A breathing comb behavior is also reported. Our finding has enriched comb generation platforms with potential multidisciplinary capabilities linked to properties of YSZ crystals in superconducting films and sensors.
Submicrosecond electro-optical switching of one-dimensional soft photonic crystals
Authors: Ma Lingling , Li Chaoyi , Sun Luyao , Song Zhenpeng , Lu Yanqing , Li Bingxiang
Published: January 2022

Soft photonic crystals are appealing due to their self-assembly ability, wide tunability, and multistimuli-responsiveness. However, their response time is relatively slow, ranging from milliseconds to minutes. Here, we report submicrosecond switching of chiral liquid crystals (LCs) with 1D photonic microstructures, where electric fields modify the orientational order of molecules and quench their fluctuations, rather than altering the orientation. Thus, the adjusted refractive indices result in a fast shift of the photonic bandgap, on the order of 100 ns, which is four orders of magnitude faster than conventional electro-optic switching in cholesterics. This work offers tremendous opportunities for soft photonic applications.