bluuebunny/crossref_metadata_2025 huggingface dataset:
Repetitive nociceptive stimulation elicits complex behavioral changes in Hirudo: evidence of arousal and motivational adaptations
Authors: Hoynoski Jessica , Dohn John , Franzen Avery D. , Burrell Brian D.
Published: July 2023

Appropriate responses to real or potential damaging stimuli to the body (nociception) are critical to an animal's short- and long-term survival. The initial goal of this study was to examine habituation of withdrawal reflexes (whole-body and local shortening) to repeated mechanical nociceptive stimuli (needle pokes) in the medicinal leech, Hirudo verbana, and assess whether injury altered habituation to these nociceptive stimuli. While repeated needle pokes did reduce shortening in H. verbana, a second set of behavior changes was observed. Specifically, animals began to evade subsequent stimuli by either hiding their posterior sucker underneath adjacent body segments or engaging in locomotion (crawling). Animals differed in terms of how quickly they adopted evasion behaviors during repeated stimulation, exhibiting a multi-modal distribution for early, intermediate and late evaders. Prior injury had a profound effect on this transition, decreasing the time frame in which animals began to carry out evasion and increasing the magnitude of these evasion behaviors (more locomotory evasion). The data indicate the presence in Hirudo of a complex and adaptive defensive arousal process to avoid noxious stimuli that is influenced by differences in internal states, prior experience with injury of the stimulated areas, and possibly learning-based processes.
The Micro Anatomy of Macro Consumption Adjustments
Authors: Guntin Rafael , Ottonello Pablo , Perez Diego J.
Published: July 2023

We study crises characterized by large adjustments of aggregate consumption through their microlevel patterns. We document the cross-sectional patterns of consumption adjustment across the income distribution and find large adjustments for top-income households, who exhibit consumption-income elasticities similar to or larger than the average. We construct a heterogeneous-agent open economy model of consumption under income fluctuations and show that the data patterns are largely consistent with theories that attribute the dynamics of aggregate consumption to changes in aggregate permanent income. We also discuss our findings’ implications for theories based on the tightening of households’ borrowing constraints and analyze policy implications. (JEL D31, E21, E32, F33, G51, O11, O12)
Return to work rate of individuals after cardiac rehabilitation and the demographic and impairment factors that influence return to work in the Western Cape, South Africa
Authors: Ganie Zakeera , Soeker Shaheed , Rhoda Anthea
Published: July 2023

Background: Cardiovascular disease commonly affects individuals within the working age group, often resulting in unemployment, particularly in low- to middle-income countries. The purpose of the study was to determine the return-to-work rate of individuals with cardiovascular disease after cardiac rehabilitation (CR) and the impact of impairment and socio-demographics on the individual’s ability to RTW.

Methods: A cross-sectional survey, namely the Work Rehabilitation Questionnaire was used to gather the information. The IBM SPSS software (version 25) was used to manage the statistical analysis. Individuals who completed a cardiac rehabilitation program between the ages of 18 and 64 years made up a sample of 63 potential research participants.

Results: The return-to-work (RTW) rate reported that only 30 (47.6%) of the participants successfully returned to work after CR and 33 (52.4%) of participants did not RTW. The results also indicated that the older the individual and the higher the degree of impairment experienced, the less likely RTW would occur.

Conclusion: The study concluded that only 47.6 % of individuals completing cardiac rehabilitation returned to work. Being older and the degree of impairment impacts on one’s ability to return to work. Factors such as the age and level of functional impairment of the individual with cardiovascular disease must be addressed more aggressively in cardiac rehabilitation programs, particularly if the goal of the individual with cardiovascular disease is to RTW.
Educational Inequality and Reservation Policy in Developing Markets
Authors: Bao Weining , Ni Jian , Singh Shubhranshu
Published: July 2023

Educational inequality undermines the pivotal role of education in increasing the ability of the poor to move up the income ladder. This paper investigates educational inequality that arises from low-income students’ lack of monetary resources that higher-income students invest in education. We show low-income students’ inability to make monetary investments in education reduces their incentive to study and contributes to educational inequality. In the context of developing markets, we study implications of a reservation policy that aims to reduce inequality by reserving some college seats for students of the disadvantaged group. The policy essentially transfers college seats from the advantaged student group to the disadvantaged student group and as a result increases the welfare of students from the disadvantaged group. In some cases, the seat transfer also improves the welfare of higher-income students. We show such a transfer, if small, can enhance overall student welfare in developing markets. However, a large transfer may reduce overall student welfare. Finally, we show the welfare-maximizing transfer is usually smaller than inequality-minimizing transfer of seats.

This paper was accepted by Dmitri Kuksov, marketing.

Funding: J. Ni was partially supported by the National Natural Science of China Grant [71832010].

Supplemental Material: The online appendix is available at https://doi.org/10.1287/mnsc.2021.00249 .
Advanced non-medical roles within surgery and their engagement with assistive health technologies
Authors: Bradburn Amy , Garbutt Anthony
Published: July 2023

The role of the surgical care practitioner (SCP) is common in UK surgical centres. The SCP curriculum is robust and well developed in multiple specialties since it was first developed in 1989. The SCP role can often concentrate on technical skills, developing a skillset that is highly effective during traditional open surgical procedures. This skillset requires further investigation because technology-assisted surgeries are becoming more common, including the use of novel approaches to developing non-technical skills. To effectively develop this skillset, analysis of robust advanced practice frameworks is necessary, alongside clear alignment to the advanced practitioners' professional regulations. This article examines the interpretation of the advanced practice concept within technology-assisted surgeries, which is potentially guiding the evolution of advanced practice within operating theatres and improving patient care.
Considering NHS patient safety culture in context
Authors: Tingle John
Published: July 2023

John Tingle, Lecturer in Law, Birmingham Law School, University of Birmingham, discusses individual responsibility and accountability in NHS patient safety culture as the NHS turns 75
Developing skills, teaching others and building good foundations
Authors: George Heather
Published: July 2023

In her series on the early steps of a newly qualified nurse, Heather George, Critical Care Staff Nurse, Aberdeen Royal Infirmary ( heather.george2@nhs.scot ) describes the challenge of mentoring a student
Supporting caregivers, families and friends visiting dying loved ones in hospital
Authors: Messam Kerry
Published: July 2023

Kerry Messam ( k.messam@nhs.net ), Deputy Lead Nurse for Specialist Palliative and End of Life Care, Northampton General Hospital, achieved a Bronze Award in the BJN Awards 2023 Nurse of the Year category
Perceived Stress and Depressive Symptoms Among Recent Latino/a Immigrants: The Moderating Effects of Emotion Regulation and Dispositional Mindfulness
Authors: Johnson Shaina A. , Cano Miguel Ángel , Rosa Mario De La , Rojas Patria , Romano Eduardo , Sanchez Mariana
Published: July 2023

Abstract: Their initial years in the U.S. can be stressful for recent Latino/a immigrants (RLIs). This study examines the association between perceived stress and depressive symptoms and the moderating effect of emotion regulation and dispositional mindfulness. Cross-sectional data from an ongoing longitudinal study of RLIs was used. Hierarchical multiple regression analyses were performed to examine simple main effects of the predictor variables on depressive symptoms. The study also tested the moderating effects of emotion regulation and dispositional mindfulness on the association between perceived stress and depressive symptoms. Greater perceived stress and cognitive reappraisal were associated with greater depressive symptoms. Lower levels of appraisal and higher levels of non-reactivity mindfulness strengthened the association between perceived stress and depressive symptoms. Findings can inform the development of culturally tailored interventions that account for distinct aspects of emotion regulation and dispositional mindfulness associated with managing stress and decreasing depressive symptoms among RLIs.
Social Connectivity and Coping Among Vulnerable Veterans During the COVID-19 Pandemic
Authors: Moore Elizabeth M. , Gabrielian Sonya , Zito Michael F. , Kozikowski Suzanne D. , Lopez James R. , Lesgart Michael , Green Michael F.
Published: July 2023

Abstract: The coronavirus disease 2019 (COVID-19) pandemic dramatically changed how people socialized. However, little is known about the extent to which the pandemic changed the social connections of people with tenuous interpersonal relationships at baseline, including homeless-experienced people and people with psychotic disorders. We sought to understand how these populations experienced changes in their social connectivity and to identify coping strategies employed. We conducted 43 semi-structured interviews with 27 vulnerable participants (11 homeless-experienced people and 16 people with psychotic disorders) and 16 comparison group participants, all of whom used services at the Department of Veterans Affairs (VA). Vulnerable participants in both groups had sparse prepandemic social connectedness; few perceived pandemic-related social network changes. While many homeless-experienced participants struggled with transitioning to technology to communicate, participants with psychotic disorders used technology to stay connected. Resilience derived from military service experiences was adaptive during the pandemic, complemented by VA services that provided supports.
Methodology for Device, Circuit and Architecture Level Co-design and Optimization of Dense Wavelength Division Multiplexing Links
Authors: Nedovic N.
Published: July 2023

We present a Dense Wavelength Division Multiplexing (DWDM) statistical model for study and optimization of device, circuit, and link architecture parameters. Using the model, we explore the rich space of DWDM parameters and some fundamental tradeoffs in design of such systems, as well as the often-neglected interdependence between low level device behavior and the link performance.
Progress of High-speed VCSELs and VCSEL-based Co-Packaging for Short Reach Communications
Authors: Kuchta Daniel M.
Published: July 2023

This paper covers the recent developments of high speed, ≥ 100Gb/s, VCSELs and VCSEL-based transceivers that are designed for co-packaging on a first level package with ASICs, such as CPUs, GPUs, and data center switches.
Parallel microLED-based optical links with record data rates and low power consumption
Authors: Pezeshki Bardia , Tselikov Alex , Kalman Rob , Afifi Emad
Published: July 2023

We demonstrate low-energy complete optical links, down to 0.7pJ/bit using a custom 32-channel microLED-based ASIC with integrated drivers, photodetectors, and TIAs. Each channel is modulated at 2Gb/s and data transferred either using highly multicore fiber or free-space. Individually, with equalization, the LEDs give clear 13.2Gb/s eyes.
Resonant Tunneling Diodes: Mid-Infrared Sensing at Room Temperature
Authors: Rothmayr Florian , Castro Edgar David Guarin , Hartmann Fabian , Knebl Georg , Schade Anne , Höfling Sven , Koeth Johannes , Pfenning Andreas , Worschech Lukas , Lopez-Richard Victor
Published: July 2023

Resonant tunneling diode photodetectors with GaInAsSb absorbers appear to be promising architectures with a simple design for mid-infrared sensing operations at room temperature. We demonstrate how the drift, accumulation and escape efficiencies of photogenerated carriers influence the electrostatic modulation of the sensor’s electrical response.
Wafer-scale Manufacturing of Ultra-low Loss, High-density Si3N4 Photonic Integrated Circuits
Authors: Ji Xinru , Wang Rui Ning , Qiu Zheru , Kippenberg Tobias J.
Published: July 2023

We demonstrate Si3N4 photonic integrated circuits featuring ultra-low propagation loss and tight optical confinement, fabricated with a subtractive process. We report an increase in propagation loss in Si3N4 waveguides after exposure to ultraviolet (UV) irradiation, and loss recovery following a rapid thermal anneal (RTA). We show an intrinsic quality factor as high as 20×106 at 1.55 µm across a 100 mm wafer.
Single-ended Distributed Vibration Sensing Using Forward Polarization Detection of CW Light Based on (1+8) Multi-core Fiber
Authors: Du Haoze , He Huan , Zhao Can , Zhang Mingming , Wu Hao , Tang Ming
Published: July 2023

A single-ended distributed vibration sensing system based on 3km 1+8 MCF is proposed and experimentally demonstrated. The vibration is located by calculating the time delay between the two cores by cross-correlation algorithm.
Laser Integration on Photonic Integrated Circuit for High Bandwidth Data Transmission
Authors: Li Nanxi , Chi Ting-Ta , Tobing Landobasa Y M , Li Zhenyu , Cai Hong , Yu Haitao , Ok Yoo Jae , Rao B.S.S. Chandra , Lee Lennon Y. T. , Lee Wen
Published: July 2023

The progress of laser integration on integrated photonics is reported with high vertical alignment precision and enhanced horizontal misalignment tolerance. Also, photonic architecture for high data rate transmission on tera bits per second is presented.
Parallel processing of frequency-bin entangled photons from a 21 GHz SOI micro-resonator for fully-connected networks
Authors: Henry Antoine , Fioretto Dario , Procopio Lorenzo , Monfray Stéphane , Boeuf Frederic , Vivien Laurent , Cassan Eric , Ramos Carlos , Bencheikh Kamel , Zaquine Isabelle , Belabas Nadia
Published: July 2023

We demonstrate for the first time a proof of concept of a frequency-domain fully-connected network using parallel frequency-domain measurements applied to frequency-entangled photon pairs from 21 GHz Silicon On Insulator (SOI) micro-resonator.
High-performance chip-to-chip QKD with hybrid integrated photonics
Authors: Dolphin Joseph A. , Paraiso Taofiq K. , Du Han , Shields Andrew J.
Published: July 2023

Here we demonstrate a hybrid integrated quantum key distribution chip which combines through edge-coupling an ultra-low-loss SiN interferometer with a high-speed InP phase modulator. This novel devices produces record chip-to-chip secure key rates.
Laser frequency microcombs for discrete-wavelength optical coherence tomography
Authors: Melton T. , McMillan J. , Wang W. , Lai Y. , Gerber M. , Rodriguez M. , Nouri-Mahdavi K. , Hubschman J.P. , Wong C. W.
Published: July 2023

We examine frequency comb states for their viability as a discrete-wavelength light source for optical coherence tomography systems. We compare resulting tomograms and with the quality factor and mTCI tomogram parameters.
Chip-based Auxiliary Interferometer to Compensate Optical Coherence Tomography Phase Errors
Authors: Chen Yu-Hsiang , Wu Cheng-Siou , Chen Ming-Hsuan , Hsu Shih-Hsiang
Published: July 2023

A 8890-µm delayed Mach-Zehnder-based auxiliary interferometer on the silicon-on-insulator platform demonstrates 22-µm axial resolution through the zero-crossing resampling. We believe that this is the first time to illustrate the SS-OCT through a chip-based auxiliary interferometer.
Optothermal multimodal manipulation of micro/nanoparticles
Authors: Ding Hongru , Kollipara Pavana Siddhartha , Yao Kan , Zheng Yuebing
Published: July 2023

We report a new optical platform to achieve on-demand multimodal manipulation of micro/nanoparticles by a synergy of optical and thermal forces.
Machine-learning-assisted inverse design for wide-FOV dual-layer multi-level diffractive lens integration
Authors: Lin Dajun , Jia Wei , Baker Brian , Dong Yibo , Majumder Apratim , Menon Rajesh
Published: July 2023

We experimentally demonstrate an inverse-designed monochromatic compact dual-layer multi-level diffractive lens integration with wide field-of-view over 100°, ultra-thin (70um total thickness), super-light (< 1 gram) and high resolution, providing new applications for lightweight camera designs.
Photonic integrated circuit with multiple waveguide layers for broadband high-efficient 3-D OPA
Authors: Wu Dachuan , Yu Bowen , Kakdarvishi Venus , Yi Yasha
Published: July 2023

We demonstrated a 3-D optical phased array device, based on multi-layer Si3N4/SiO2 stacks. The multi-waveguide-layer configuration allows utilizing edge couplers at both the input and the emitting ends to achieve broadband high efficiency.
Low-Loss GaAs/AlGaAs-On-Sapphire Waveguides for Sapphire Based Photonic Integrated Circuits
Authors: Shah Manoj Kumar , Soref Richard A. , Du Wei , Salamo Gregory J. , Yu Shui-Qing , Mortazavi Mansour
Published: July 2023

Group III-V materials on sapphire substrate opens a new avenue for photonics integrated circuits. GaAs/AlGaAs straight waveguides on sapphire substrate were numerically studied. The propagation loss, single-mode, and multi-mode operation conditions were reported.
High Temperature Cryogenic Single Photon Detector with Ultra-Low Time Jitter and Dark Count Rate for Spaceborne Quantum Communication Applications
Authors: Tomio Hannah , Yang Guangning , Lu Wei , Xu Xiaozhen , Orlov Dmitry , Kernen Emilie , Glazenborg René , Cahoy Kerri
Published: July 2023

We report the development and testing of a photon-counting detector for space-borne quantum communication applications with an ultra-low dark count rate (10 counts per second) and low timing jitter (40 ps FWHM, 17 ps σ, 140 ps 1%) at a non-cryogenic temperature of -60°C.
Label-free and quantitative detection of respiratory viruses in saliva using surface-enhanced Raman spectroscopy and machine learning algorithms
Authors: Yang Yanjun , Xu Beibei , Murray Jackelyn , Haverstick James , Chen Xianyan , Tripp Ralph A. , Zhao Yiping
Published: July 2023

We report a label-free diagnostic platform that combines surface-enhanced Raman scattering (SERS) and machine learning for the rapid and accurate detection of eleven respiratory viruses. Utilizing SVM-based regression, quantitative detection has been achieved.
High-resolution Imaging with Scattered X-ray Radiation
Authors: Ben Yehuda A. , Sefi O. , Cohen E. , Shwartz S.
Published: July 2023

We demonstrate ghost imaging with scattered x-ray radiation for the first time and show that its spatial resolution is significantly higher than the resolution of standard present-day methods that rely on x-ray scattering.
Understanding Subsurface Behavior during Metal Laser Drilling Process via in-situ Synchrotron X-ray Imaging
Authors: Gorgannejad Sanam , Martin Aiden A. , Wang Jenny , Forien Jean-Baptiste , Strantza Maria , Quan Peiyu , Liu Sen , Thampy Vivek , Tassone Christopher J. , Calta Nicholas P.
Published: July 2023

For the first time, in-situ X-ray based imaging of the metal laser drilling is employed to elucidate the underpinnings of laser-matter interaction and the drill hole formation mechanisms to enhance the robustness and control of the manufacturing process.
Long and crack-free holes in glass by top-down drilling with femtosecond laser GHz-bursts
Authors: Balage Pierre , Lopez John , Bonamis Guillaume , Hönninger Clemens , Manek-Hönninger Inka
Published: July 2023

We report on extremely long, high quality, and crack-free holes in sodalime and fused silica by laser drilling with femtosecond GHz-bursts, where aspect ratios exceeding 30 and even 70 have been obtained, respectively.
Direct Nanoplastics Detection Below the Diffraction Limit Using Micro Raman
Authors: Bereczki Allan , Dipold Jessica , Freitas Anderson Z. , Wetter Niklaus
Published: July 2023

Raman spectra of polystyrene nanoparticles of 50 nm diameter were directly measured using micro-Raman spectroscopy. Data analysis demonstrated that particles as small as 20 nm could be directly measured with this simple and robust technique.
A Calibration-Free Water-Cut Laser Sensor
Authors: Mhanna Mhanna , Arsalan Muhammad , Ramakrishnan Vijay , Farooq Aamir
Published: July 2023

A laser sensor is developed for calibration-free water-cut sensing in oil-water flow. The sensor is based on three DFB lasers emitting near 1.4 µm. TDLAS and a novel algorithm were employed to enable calibration-free measurements.
Highly Sensitive Concentration Sensing Using Silicon Double-Slot Waveguide
Authors: Gali Sushma , Keloth Akshay , Selvaraja Shankar Kumar
Published: July 2023

We demonstrate refractive index measurement using a double-slot silicon waveguide- based Mach-Zehnder interferometer. A maximum sensitivity of 700 nm/RIU is experimentally achieved with a limit of detection of 7.142X10-6 RIU.
Dual-soliton-microcombs based coherent fiber-optic distributed acoustic sensing
Authors: Chang Bing , Li Jianting , He Xinyue , Du Junting , Tan Teng , Ran Zengling , Rao Yunjiang , Yao Baicheng
Published: July 2023

We report the concept of a coherently-parallel fiber-optic distributed-acoustic-sensing, based on integrated dual-soliton-microcombs. It enables linear superposition of acoustic responses scaling with the comb-line number. Leveraging 10-line soliton pairs, a world-class detection limit 560 fε/√Hz@1kHz is achieved.
High resolution Dynamic Strain Sensing Using Frequency-Scanning φ-OTDR with Frequency Comb Pulse
Authors: Lin Zhonghong , He Huan , Zhao Zhiyong , Tang Ming
Published: July 2023

By modulating frequency comb into single interrogating pulse instead of sweeping the carrier frequency one by one in frequency-scanning φ-OTDR, a novel high resolution strain sensor with unprecedented dynamic response speed was proposed and demonstrated.
Parallel coherent LiDAR with low hardware requirements
Authors: Wang Long , Xie Kunfeng , Hu Liang , Chen Jianping , Wu Kan , Jiao Wenhai , Wu Guiling
Published: July 2023

A high-performance parallel coherent LiDAR based on phase-coded subcarrier modulation with record-high imaging rate and high ranging precision is demonstrated, which also breaks through the high-hardware requirements in the previous parallel coherent LiDARs.
Integrated Optoelectronic Memory Array with Enhanced Broadband Si-based Lines for Advanced Visual Systems
Authors: Wang Jinyong , Ren Yujing , Tang Baoshan , Li Changcun , Liu Fucai , Gu Deen
Published: July 2023

We present an innovative approach to optoelectronic memory that utilizes enhanced Si-based broadband lines integrated into an array to achieve stable synaptic functions, optical states and high recognition accuracy (99.64%) under near-infrared regions, paving the way for high-performance robot vision systems with advanced memory capabilities.
Non-planar growth of high Al-mole-fraction AlGaN heterostructures on patterned GaN substrates for UV LEDs and Laser Diodes
Authors: Ando Y. , Xu Z. , Detchprohm T. , Dupuis R. D.
Published: July 2023

Non-planar growth of thick AlGaN layers on patterned GaN substrates was investigated to suppress cracking of III-Nitride heterostructures. Preliminary devices with promising characteristics for achieving high-performance UV LEDs and laser diodes were demonstrated.
Wavelength Multiplexed Photonic Edge Computing in the Output Stationary Frame
Authors: Hamerly Ryan , Sludds Alex , Bandyopadhyay Saumil , Chen Zaijun , Zhong Zhizhen , Bernstein Liane , Ghobadi Manya , Englund Dirk
Published: July 2023

We propose a photonic edge computing architecture based on WDM, broadband modulation, and output-stationary integration. Using this scheme, we demonstrate 98.8%-accurate DNN inference over an 86-km deployed fiber link with 3 THz optical bandwidth.
Self-supervised neural network for holographic microscopy
Authors: Huang Luzhe , Chen Hanlong , Liu Tairan , Ozcan Aydogan
Published: July 2023

We present a self-supervised hologram reconstruction neural network trained using a physics-consistency loss, which achieves superior generalization to reconstruct holograms of various samples, without previously having/seeing any experimental data or prior knowledge regarding the samples.
Unsupervised Image Enhancement for Nonlinear Optical Microscopy with Scarce Samples
Authors: Jhang Yun-Jie , Lin Xin , Chia Shih-Hsuan , Chen Wei-Chung , Wu I-Chen , Wu Ming-Tsang , Zhuo Guan-Yu , Chen Hung-Wen
Published: July 2023

We present an unsupervised model without any assumptions to enhance images in nonlinear optical microscopy. It only takes 30 training images and can be generalized to unseen samples. Qualitative and quantitative results show significant improvement.
Optically 3D μ-printed directional-emission WGM microlasers for on-chip integrated sensing
Authors: Wang Zhizheng , Qin Yiang , Zhang A. Ping
Published: July 2023

An optical 3D micro-printing method is presented to directly print polymer whispering-gallery mode (WGM) microlaser with deformed microcavity. It can rapidly and precisely tailor the geometry of optical WMG microcavities for on-chip integrated sensing applications.
Low threshold lasing based on a hybrid Si/III-V cavity with quantum dots
Authors: Rahaman Habibur , Lee Chang-Min , Buyukkaya Mustafa Atabey , Zhao Yuqi , Waks Edo
Published: July 2023

Here, we present a low threshold nanolaser design based on an alignment-free heterogeneous Si-GaAs photonic crystal cavity where the cavity design is only in silicon and GaAs is a wider slab.
Underwater Optical Wireless Communications using Ince Gaussian Beams
Authors: Robertson Evan , Pires Danilo G. , Free Justin , Litchinitser Natalia , Miller J. Keith , Johnson Eric G.
Published: July 2023

Generation of Ince Gaussian beams can be performed through the nonlinear process. Controlling the phase matching condition of the nonlinear process allows the mode spectrum of the decomposition to be carefully controlled. This beam can be used for constant envelope communication through underwater turbid environments.
Broadband Photonic Radar Enabling Millimeter Resolution for Vital Sign Detection
Authors: Zhang Ziqian , Liu Yang , Stephens Tegan , Eggleton Benjamin J.
Published: July 2023

We demonstrate the first photonics-assisted vital sign radar for detecting the respiration of a cane toad as a human proxy. This work paves the way for photonics-enabled, high-performance, contactless vital sign detection and monitoring.
Non-monotonic Wavelength Sweep Method of a Sampled Grating Distributed Bragg Reflector Laser for Use in Low- Cost Swept-Source Interferometry
Authors: Clark J. Kenji , Nakamura Shigeru
Published: July 2023

A method of non-monotonically tuning the wavelength of a sampled grating distributed Bragg reflector laser enabling higher speed modulation is proposed. Significant improvements in sweep resolution and stability over a monotonic sweep are demonstrated.
Miniature solid-state laser for space applications
Authors: Pati Bhabana , Stebbins Kenneth
Published: July 2023

A miniature solid-state laser was developed using radiation-hardened components for space-based applications. The volume is 60 c.c., and the weight is 160 g. It can produce 6, 3 and 1 mJ at 1064, 532 and 266 nm respectively at 1-50 Hz.
Photoacoustic gas sensing employing an improved radial resonator
Authors: Duquesnoy M. , Melkonian J-M. , Levy R. , Aoust G. , Tran L. , Raybaut M.
Published: July 2023

We present a novel configuration for photoacoustic gas sensing demonstrating QEPAS state-of-the-art sensitivity, while allowing coupling with possibly divergent or multipoint sources. This configuration was simulated and characterised experimentally.
All-optical phase recovery: Quantitative phase imaging using diffractive optical networks
Authors: Mengu Deniz , Ozcan Aydogan
Published: July 2023

We demonstrate diffractive networks that perform all-optical phase recovery and synthesize the quantitative phase images of input objects by converting the input phase information into quantitative intensity variations at their output.
Ultrasensitive biodetection by a Functionalized terahertz plasmonic metasensor
Authors: Wang Ride , Xu Lei , Yang Xiao , Zhang Xiaobao
Published: July 2023

An ultra-sensitive THz plasmonic biometasensor enabled by the quasi-BIC MD resonance combining with the functional colloidal AuNPs was reported, which is critical in research of non-destructive and rapid quantitative detection of extremely diluted (pM) solutions.
Data-Driven Ultrashort Pulse Laser Processing Based on Novel In-Process Monitoring and AI High-Speed Optimization
Authors: Narazaki Aiko , Takada Hideyuki , Nagai Daisuke , Miyaji Godai , Nakamura Naoyuki , Nishimae Junichi , Otsu Toshio , Nakazato Tomoharu , Kobayashi Yohei , Yoshitomi Dai
Published: July 2023

We have developed ultrashort pulse data-driven active laser processing for higher precision and productivity, in which process parameters can be controlled in real-time based on in-process monitoring data and artificial intelligence optimization.
FMCW LiDAR Distance Measurement through Phase Error Correction
Authors: Guan Zhi-Ping , Kang Jhih-Jia , Xu Jia-Yi , Hsu Shih-Hsiang
Published: July 2023

Compared with the auxiliary interferometer, the direct resampling on main interferograms through the Hilbert transform could correct the optical-source phase error and demonstrate the excellent frequency spectrum, precise distance, and repeatability for compact LiDAR systems.
A Modified Data Augmentation Integration Method for Intrusion Recognition Assisted with Fiber Optic DAS System
Authors: Zhang Shixiong , He Tao , Li Hao , Xiao Kai , Fan Cunzheng , Yan Zhijun , Sun Qizhen
Published: July 2023

A modified data augmentation integration (MDAI) method for intrusion recognition assisted with fiber optic DAS system is proposed. Compared with the method without data augmentation (w/o-DA), the accuracy of MDAI is increased by 48.6% under the conditions of low-SNR, input-shift and events-mixing.
High-throughput testing of the nanophotonic devices
Authors: Ananthachar A. , Devarapu G.C.R. , O’Faolain L.
Published: July 2023

The proposed Resonance Scattering Spectroscopy (RSS) technique is fully automated, non-invasive, and high throughput wafer scale characterization system. In the RSS technique, a laser broadband light source of fixed polarisation is tightly focused on the device under test. Light with a wavelength matching that of the device’s resonance wavelength is scattered into the orthogonal polarisation giving a signal that is characteristic of the resonator which can be rapidly acquired. Using this prototype, several Photonic Crystal L3 cavities have been studied and we achieved a Q-factor of the order of tens of thousands for an optimised L3 cavity, which compares well with the design and simulation results.
Purcell-Enhanced Single-Photon Emitter Exploiting Extreme Dielectric Confinement
Authors: Zhou Yueguang , Kountouris George , Yvind Kresten , Mørk Jesper , Gregersen Niels , Pu Minhao
Published: July 2023

We propose an extreme dielectric confinement bullseye microcavity for single-photon emission and theoretically show the nanometer-scale light confinement enables a Purcell factor of 87, which is four times larger than that of standard bullseye microcavities.
Generation of circularly polarized THz dual pulses
Authors: Wei Hao-Keng , Ito Hironori , Huang Wei-Hong , Chen Zai-Wen , Ko Ying-Kuan , Tu Chien-Ming , Yabushita Atsushi , Misawa Kazuhiko , Luo Chih-Wei
Published: July 2023

Circularly polarized THz dual pulses were generated by polarization-twisting optical dual pulses via a modified Michelson interferometer with the turnability of frequency, helicity, and time interval between two pulses.
A Terahertz Hollow-Core Optical Fiber with Low Confinement Loss for Orbital Angular Momentum Modes Transmission
Authors: Feng Haixia , Zhang Hu , Wang Jiaqi , Fang Songke , Zhang Xiaoguang , Xi Lixia
Published: July 2023

A terahertz hollow core optical fiber is designed to support orbital angular momentum modes up to l=3. The fiber exhibits low confinement loss (0.003dB/cm), flat dispersion and wide bandwidth (0.9-1.2 THz and 1.425-1.85 THz).
Hyperbolic-Elliptical Lens Pairs for Fast THz-TDS Single-Pixel, Phase-Front Matched Imaging of Spherical Targets with an Extended Field of View
Authors: Virk Arjun S. , Harris Zachery B. , Arbab M. Hassan
Published: July 2023

Single-pixel reflection imaging of curved surfaces requires normal incidence and phase-front matching over a large FOV. Hyperbolic-Elliptical lenses were designed for a collocated THz-TDS setup to achieve imaging of samples such as the cornea in under 2 seconds.
Calorimetric Measurement of Morphology-dependent Resonances in Microwave-irradiated Aqueous Spheres
Authors: Song Yuchen , Shafe-Purcell John , Slepkov Aaron D.
Published: July 2023

A calorimetric approach is used to obtain evidence for internal morphology-dependent resonances in hydrogel spheres at microwave oven frequencies, confirming a first-order magnetic dipole mode for (grape-sized) spheres with diameters of 1.35 cm.
Detecting relative phase of photon frequency superposition states using three-level atom coupled to waveguide
Authors: Zhong Janet , Rituraj  , Dinc Fatih , Fan Shanhui
Published: July 2023

We show that the scattering of a single photon in a superposition of two frequencies with a single three-level Λ atom depends on the relative phase between the photon frequency superposition states.
Resolving Single Molecules in Flow Cytometer in Presence of Fluorescent Bursts via an Optical Quantum Measurement
Authors: Burenkov I.A. , Sabines-Chesterking J. , Polyakov S.V.
Published: July 2023

We prove high signal-to-noise (SNR>6) in single-biomarker detection with a quantum-enabled flow cytometer. We observe the nonclassical signal from single biomarkers and differentiate it from the spurious detection of “bright” classical particles based on experimentally characterized statistical properties and quantum measurement.
Efficient Collection and Detection of Color Center Emission in Triangular Nanophotonic Geometry of Silicon Carbide
Authors: Saha Pranta , Majety Sridhar , Radulaski Marina
Published: July 2023

Angle-etching fabrication produces state-of-the-art color center triangular nanophotonic devices. We uncover how the photonic band gap is formed in the triangular geometry and utilized for efficient detection from SiC waveguide into overlaid NbTiN detectors.
Niobium Nitride Superconducting Nanowire Single Photon Detector on 4H-Silicon Carbide
Authors: Jin Lin , Jaha Roland , Ferrari Simone , Pernice Wolfram
Published: July 2023

We fabricated and characterized U-shaped NbN SNSPDs on bulk crystal 4H-c-cut SiC. They exhibit uniform photoresponses under perpendicular illumination, corresponding to a SDE of 0.02% at 775 nm and saturation at NIR wavelength range.
DBR laser integrated with SOA and SSC for FMCW LiDAR system
Authors: Zhang Gong , Jiang Chun , Lou Jiajun , Wang Kuankuan , Lu Qianyin , Guo Weihua
Published: July 2023

We demonstrated a DBR laser realizing 114 mW output power. By applying the SSC structure, the coupling efficiency to 2.5 μm and 5 μm lensed fiber reaches 57% and 51%, respectively.
Effects of Light Backscattering on Injection-Locking Conditions in Strongly Injection-Locked Whistle-Geometry Semiconductor Ring Lasers
Authors: Smolyakov Gennady A. , Osiński Marek
Published: July 2023

We investigate the impact of light backscattering between the two counterpropagating modes on injection-locking conditions in strongly injection-locked unidirectional whistle-geometry semiconductor microring lasers and on their high-speed modulation performance.
Simulated Scattering of a Beam Carrying Orbital Angular Momentum from a Microparticle
Authors: McCarthy John E. , Avramov-Zamurovic Svetlana , Hart Matthew B. , Sivaprakasam Vasanthi
Published: July 2023

We use multiphysics software COMSOL to simulate and evaluate interactions between structured light carrying orbital angular momentum and a single microparticles. We investigate the impact of particle location with respect to the structured light spatial intensity distribution.
A New Optoelectronic Switch using the Coupling between Two Lasers Assisted by a Capacitor Voltage
Authors: Bharadwaj Rishi , Bahrim Cristian
Published: July 2023

The superposition of two coherent cw-TEM00 laser beams on glass surface can lock the weak beam on vibratory dipoles. A voltage set across the dielectric can be a switch ON/OFF for releasing the weak beam.
Highly Sensitive Photodetector Based on Inorganic-Organic Heterojunction Phototransistor
Authors: Ullah Ahasan , Lamug Roshell , Yeasmin Sanjida , Zhang Xueqiao , Ostroverkhova Oksana , Cheng Li-Jing
Published: July 2023

We propose a high-performance inorganic-organic phototransistor based on planner IGZO-ADT heterojunction. The device exhibits superior photosensitivity to visible light and excellent stability at ambient conditions.
Thermally insensitive Kerr microresonator soliton comb
Authors: Kuse Naoya , Nishimoto Kenji , Minoshima Kaoru
Published: July 2023

We numerally demonstrate a thermally insensitive Kerr microresonator soliton comb via the control of the avoided mode crossing, in which the thermo-refractive effect, self-Raman frequency shift, higher-order dispersion, and avoided-mode crossing are balanced.
Zero-Index Metamaterials for Extreme Optics
Authors: Mazur Eric
Published: July 2023

Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) having an effective refractive index of zero in the optical regime. We will review some of the exotic physics of these zero-index metamaterials.
Detection Of several Microorganism Using Terahertz Metamaterial Perfect Absorber
Authors: Bhati Ruchi , Malik Anil K.
Published: July 2023

we propose a novel metamaterial Perfect absorber at terahertz frequency for fast and non-destructive detection of microorganisms. The sensor provides possibilities for obtaining dielectric information of microorganisms, which are of great potential for future biomedical applications.
Dual operation regime in the net anomalous dispersion all-polarization-maintaining Yb-doped fiber laser oscillator
Authors: Pielach Mateusz , Jamrozik Agnieszka , Krupa Katarzyna , Stepanenko Yuriy
Published: July 2023

We report a net anomalous dispersion Yb-doped fiber laser oscillator, which can operate in two different states. In particular, it can enter a subregime similar to the Standard dissipative soliton allowing for further energy scaling.
Helical plasma filaments in optical fibers
Authors: Mangini Fabio , Ferraro Mario , Zitelli Mario , Niang Alioune , Mansuryan Tigran , Tonello Alessandro , Couderc Vincent , De Luca Antonio , Babin Sergey A. , Frezza Fabrizio , Wabnitz Stefan
Published: July 2023

We demonstrate that exploiting the cylindrical geometry of optical fibers allows for the ignition of helical-shaped plasma filaments.
Two pulsed regions in a L-band dissipative-soliton fiber laser controlled by two pump injections
Authors: Ye Feng , Liu Xuanyi , Pan Denghui , Fu H. Y. , Li Qian
Published: July 2023

We propose a L-band Er-doped fiber laser with a dual-pump scheme. Wavelength-switchable dissipative solitons (DSs) with different optical characteristics have been obtained.
Inverse Design of Photonic Structures Using Automatic Differentiable Rigorous Diffraction Interface Theory
Authors: Huang Yi , Tang Hong , Zheng Bowen , Dong Yunxi , Haerinia Mohammad , Podolskiy Viktor A. , Zhang Hualiang
Published: July 2023

We present an automatic differentiable R-DIT for the fast inverse design of photonic structures. We demonstrated that the proposed method could achieve a 30% speedup per optimization on GPUs compared with the differentiable RCWA.
Various Scattering Regimes of Truncated Cone Particles
Authors: Terekhov Pavel , Kuznetsov Alexey , Valero Adrià Canós , Shamkhi Hadi K. , Ni Xingjie , Bobrovs Vjaceslavs , Rybin Mikhail , Shalin Alexander S.
Published: July 2023

Here, we show how to use out-of-plane symmetry breaking using easy-to-fabricate truncated nanocones. Using the same shape, it is possible to achieve various types of Kerker effects, hybrid anapole regime and other peculiar effects.
Line-by-Line Inscription of Waveguide Bragg Gratings in Bulk Glass Using Femtosecond Laser
Authors: Wu Jiaming , Zhao Rong , Shu Xuewen
Published: July 2023

We demonstrate the first line-by-line waveguide Bragg grating written in bulk glass by femtosecond laser. The grating strength reaches 38dB in a length of only 5 mm, the loss is less then 0.7 dB.
Silk Fibroin Periodic Surface With Low Mid-Infrared Reflectivity Fabricated via Laser-Induced Forward Transfer
Authors: Couto Filipe A. , Paula Kelly T. , Santos Moliria V. , Ribeiro Sidney J. L. , Mendonça Cleber R.
Published: July 2023

2D periodic surfaces of silk-fibroin microstructures were fabricated via femtosecond Laser-Induced Forward Transfer, presenting low reflectivity at the mid-infrared region. Also, the low reflectivity feature was further enhanced by coating the structures with carbon.
Classification of Energy Densities of Transmission Eigenchannels of Complex Photonic Media using Machine Learning
Authors: Spotnitz Matthew Emerson , Pribisova Abigail , Sarma Raktim , Briscoe Jayson
Published: July 2023

We demonstrate classification of energy densities of transmission eigenchannels and corresponding disorder strength of a single configuration of a complex medium using supervised machine learning techniques with an accuracy greater than 95 %.
Wafer-Scale Fabrication of Linear Variable Filter-based Reconstructive Micro-Spectrometer
Authors: Kim Serim , Kim Min Seok , Song Young Min
Published: July 2023

We present a compact reconstructive micro-spectrometer based on a linear variable filter consisting of multi-layer stacks with random thicknesses in the spatial domain. A simple gradient deposition/rotation method enables wafer-scale random filters with an encryption function.
Noise-resilient approach for deep tomographic imaging
Authors: Guo Zhen , Liu Zhiguang , Zhang Qihang , Barbastathis George , Glinsky Michael E.
Published: July 2023

We propose a noise-resilient deep reconstruction algorithm for X-ray tomography. Our approach shows strong noise resilience without obtaining noisy training examples. The advantages of our framework may further enable low-photon tomographic imaging.
A Bias-instability-enhanced Dual-polarization Fiber-optic Gyroscope for Precision Measurement
Authors: Chen Yanjun , Cao Yuwen , Zhu Lanxin , Wang Wenbo , He Yan , Huang Huimin , Ma Xiangdong , Li Zhengbin
Published: July 2023

A dual-polarization fiber-optic gyroscope with a delay coil is realized. The bias instability reaches 5 × 10
-6
°/h. An earthquake with an epicentral distance of 4200 km has been recorded, indicating the ability for precision measurement.
High Spatial Resolution and Large Measurement Range Strain Sensor Based on Special Fiber OFDR System
Authors: Lv Yuejuan , Xiao Xiangpeng , Yang Ziyun , Li Hao , Yan Zhijun , Sun Qizhen
Published: July 2023

An excellent strain sensor based on longitudinal micro-structured fiber OFDR is proposed and demonstrated. Owing to the higher RBS intensity, the spatial resolution reaches 400μm and the strain measurement range is greatly increased to 4400με.
All-optical Leaky-Integrate-and-Fire Neuron Based Cascaded Microrings with Power-tunable Auxiliary Light
Authors: Zhang Qiang , Jiang Ning , Hu Gang , Li Anran , Zhang Yiqun , Li Xiaoyu , Cao Yongsheng , Qiu Kun
Published: July 2023

We demonstrated an all-optical Leaky-Integrate-and-Fire neuron based cascaded microrings with power-tunable auxiliary light. The compact LIF neuron enables flexibly realizing synaptic weighting operation due to synaptic plasticity of a single microring, and generating layer-individual spikes.
An optical polarization demultiplexing in 10-km 112-Gbaud PDM-16-QAM simplified MIMO-free coherent system
Authors: Sun Peng , Shan Linan , Yao Guanghao , Zhao Wanxin , Zhang Yan , Cao Yuanji , Zhang Xiaoguang , Xi Lixia , Xiao Xiaosheng , Zhang Wenbo , Xin Haiyun , Tang Jin
Published: July 2023

Optical polarization demultiplexing only by an opto-electric module in a 10-km 112-baud-PDM-16QAM simplified MIMO-free coherent system is demonstrated, realizing up to 10-krad/s SOP three hours endless tracking with PCR>20 dB and BER<3.0 × 10 2.
Adaptive Mitigation of Equalization-induced High-frequency Amplification Noise in Faster-than-Nyquist Coherent Optical Communications
Authors: Zhao Jing , Yang Tao , You Jialin , Chen Xue , Wang Yongben , Zhou Weiqin
Published: July 2023

A novel adaptive mitigation scheme of amplified high-frequency noise in Faster-than- Nyquist (FTN) 16QAM coherent systems. It not only has a low level of complexity but also exhibits comparable performance to that of traditional schemes.
Flexible, Refractive Fresnel Liquid-Crystal (RFLC) Lens for Low-Power Autofocusing Smart Contact Lens Systems
Authors: Ghosh Chayanjit , Deshpande Adwait , Banerjee Aishwaryadev , Karkhanis Mohit U. , Pourshaban Erfan , Kim Hanseup , Mastrangelo Carlos H.
Published: July 2023

We demonstrate fabrication of tunable flexible refractive Fresnel liquid-crystal lens using PET for Smart Contact Lens System. We show focus tunability of 1.9D at 1.1VRMS using voltage and pulse width modulation lens tuning techniques.
Supercontinuum Generation in Si-SiO2-Si Horizontal Slot Waveguide Fabricated by µ-Transfer Printing
Authors: Sato Ryosuke , Kou Rai , Yamamoto Noritsugu , Atsumi Yuki , Cong Guangwei , Murai Toshiya , Maegami Yuriko , Ishizawa Atsushi , Yamada Koji , Kita Tomohiro
Published: July 2023

We fabricated a Si-SiO2-Si horizontal slot waveguide using µ-Transfer Printing method. Supercontinuum generation ranging from 1.35 to 2.05 µm was demonstrated with a coupled energy of as low as 10 pJ.
Towards the Generation of Photon Pairs at 780 and 1560 nm in Periodically-Poled Silica Fiber
Authors: Greenwood Alexander C. B. , Shahaj Andi , Chen Changjia , Kirby Brian T. , Gladyshev Alexei V. , Kazansky Peter G. , Qian Li
Published: July 2023

We show the Sum-Frequency Generation characteristics of our periodically-poled silica fiber source for spontaneous parametric downconversion at 780 and 1560 nm; efficiencies are on an order of 4 × 10-6 and photon bandwidths of ~489 GHz.
Microwave Photonic Harmonic Down-Conversion Based on Four-Wave Mixing in a silicon waveguide with reverse-biased p-i-n junction
Authors: Zhang Xinyan , Wen Huashun , Liu Yu , Zhu Ninghua , Zhai Kunpeng
Published: July 2023

We propose a wideband photonic-assisted method based on four-wave mixing in a silicon waveguide with reverse-biased p-i-n junction to realize microwave down-conversion with a low-frequency electrical local oscillator (LO).
Spectral Narrowing of a Non-Resonant PPKTP Optical Parametric Oscillator using a VBG
Authors: Wang Li , Chen Weidong , Zukauskas Andrius , Mhibik Oussama , Divliansky Ivan B. , Moelster Kjell , Pasiskevicius Valdas , Glebov Leonid B. , Petrov Valentin
Published: July 2023

A non-resonant optical parametric oscillator based on 5-mm-thick Rb-doped periodically-poled KTiOPO4 (PPKTP) generates narrow-band (<1-nm) idler pulses of 5.84-mJ energy at ~2382 nm and 100 Hz using a volume Bragg grating for the signal wave.
Bridging free-space and guided-wave space-time optics
Authors: Jolly Spencer W. , Kockaert Pascal
Published: July 2023

An example of a beam with angular dispersion in its focus coupled to a graded-index fiber is used to demonstrate one way to merge free-space and waveguide space-time optics.
Dual wavelength optofluidic distributed feedback dye laser on a single PDMS chip
Authors: Sano T. , Schmidt H.
Published: July 2023

We demonstrate two liquid-core distributed feedback (DFB) lasers operating side-by-side simultaneously at two different wavelengths with sub-mW thresholds from Rhodamine 6G dissolved in ethylene glycol and 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran in dimethyl sulfoxide on a single polydimethylsiloxane device.