bluuebunny/crossref_metadata_2025 huggingface dataset:
Determining Sidon polynomials on Sidon sets over finite fields
Authors: Afifurrahman Muhammad , Barra Aleams
Published: September 2024

Let $p$ be a prime, and $q=p^n$ be a prime power. In his works on Sidon sets over $\mathbb{F}_q \times \mathbb{F}_q$, Cilleruelo conjectured about polynomials that could generate $q$-element Sidon sets over $\mathbb{F}_q\times \mathbb{F}_q$.
Here, we derive some criteria for determining polynomials that could generate $q$-element Sidon set over $\mathbb{F}_q\times \mathbb{F}_q$. Using these criteria, we prove that certain classes of monomials and cubic polynomials over $\mathbb{F}_p$ cannot be used to generate $p$-element Sidon set over $\mathbb{F}_p\times \mathbb{F}_p$. We also discover a connection between the needed polynomials and planar polynomials.
Case Reports: Periprosthetic Joint Infection after Total Joint Arthroplasty Following Swimming Activity
Authors:   Department of Orthopedic Surgery, Bnai Zion Medical Center, Haifa, Israel., Albagly Aviram , Levine Ariel D ,   Department of Orthopedic Surgery, Bnai Zion Medical Center, Haifa, Israel., Ben-Lulu Oren ,   Department of Orthopedic Surgery, Bnai Zion Medical Center, Haifa, Israel.
Published: September 2024

Introduction: Periprosthetic joint infection (PJI) is a severe complication of total joint arthroplasty (TJA), occurring in approximately 1–2% of primary procedures. These infections, characterized by an overall weighted mean incidence of 0.97% for total hip arthroplasty (THA) and 1.03% for total knee arthroplasty (TKA), pose significant challenges for patients and health-care providers. Case Report: The authors present two intriguing case reports. The first involves a 64-year-old male who underwent TKA 17 months prior and presented to our outpatient clinic with clinical symptoms and laboratory findings consistent with PJI. Subsequent Streptococcus dysgalactiae culture results confirmed the diagnosis. The second case involves a 51-year-old male who presented to our outpatient clinic 2 weeks after undergoing THA, with clinical symptoms consistent with infected hematoma, which was later confirmed with positive Staphylococcus lugdunensis culture results and another infected process, occurring 3 months after the initial procedure, confirmed by positive Group B Streptococcus (Streptococcus agalactiae). Both patients reported swimming in a recreational swimming pool before and after the procedures and during the follow-up period, approximately 2–3 times a week. Those patients reported resuming their recreational swimming activities just a few days after the procedures. Although as part of post-operative wound care, we instruct all of our patients not to get the wound wet for the 1st days after surgery, to our knowledge swimming activities are not included in the various risk factors for developing a PJI, nor are the bacteria mentioned above associated with aquagenic infection. Conclusion: Although swimming activity has not been identified as a known risk factor for PJI, it is important for physicians to maintain a high clinical suspicion for delayed or late infections in patients who engage in swimming activities. Further investigations are warranted to determine the potential role of recreational swimming activities as a risk factor for PJI after TJA. Keywords: Periprosthetic joint infection, total knee arthroplasty, total hip arthroplasty, total joint arthroplasty, swimming activity, peri-prosthetic joint infection
Posterior Aspect Fracture of Tibia after Open Wedge Distal Tuberosity Osteotomy: A Case Report
Authors:   Department of Orthopaedic Surgery, Oita University, Yufu City, Oita, Japan., Akase Hiroya , Hirakawa Masashi ,   Department of Orthopaedic Surgery, Oita University, Yufu City, Oita, Japan., Nagashima Yu ,   Department of Orthopaedic Surgery, Oita University, Yufu City, Oita, Japan., Matsuda Shougo ,   Department of Orthopaedic Surgery, Oita University, Yufu City, Oita, Japan., Kaku Nobuhiro ,   Department of Orthopaedic Surgery, Oita University, Yufu City, Oita, Japan.
Published: September 2024

Introduction: Open wedge distal tuberosity osteotomy (OWDTO) was the surgical treatment in which tibial tuberosity was attached proximal fragment to avoid an increase in patellofemoral joint pressure. The current paper reported a case of post-operative posterior aspect fracture of the tibia as a rare complication after OWDTO. Case Report: A 52-year-old Asian man had been performing OWDTO for medial knee osteoarthritis. The patient was injured by the tibial posterior aspect fracture due to minor trauma 2 months after surgery. Bone union was completed by transient unloading and ultrasound therapy, but the anteroposterior screw remained in the bone due to screw breakage during removal. Conclusion: Post-operative posterior aspect fracture of the tibia is a complication specific to OWDTO. It is difficult to detect the fracture on X-ray; therefore, the evaluation with computed tomography is recommended. It is possible that removal of the anteroposterior screw has become difficult in the event that this fracture occurs. Keywords: Open wedge distal tuberosity osteotomy, complication, posterior aspect fracture of tibia, removal difficulty.
Analysis of water quality in watershed using heavy metal pollution index
Authors: Ujianti Rizky Muliani Dwi , Novita Mega , Burhanuddin Aan , Muflihati Iffah , Agung Lukman Anugrah , Ingsan Roies Nur , Wafa Alfan Najihil , Anggraeni Cerly Nurlita , Muzakki Tsaqif
Published: September 2024

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed
Insight for knowledge brokers: factors predicting relationships with federal staffers
Authors: O’Neill Patrick , Pugel Jessica , Long Elizabeth C. , Crowley D. Max , Scott Taylor
Published: September 2024

Background:

In theory and practice, it is understood that personal relationships play a role in the effectiveness of translational models that bridge research and policy. These models can be made more efficient by understanding factors impacting relationships between policy-making players and third-party knowledge brokers.

Aims and objectives:

This study investigates a range of personal and office-level characteristics in predicting initial meetings and sustained relationships between federal staffers and knowledge brokers.

Methods:

A public affairs database, Quorum, was used to pull data on staffers who were contacted between September 2021 and August 2022 during an optimisation phase of the Research-to-Policy Collaboration (RPC). Logistic regression models were used to understand the impact of the characteristics on outcomes such as attending initial meetings and attending meetings facilitated by the RPC.

Findings:

Mid-level staffers and democratic staffers were more likely to meet with RPC staff. Office tenure was predictive of lower odds of meeting with RPC staff. For significant associations, the sample was stratified by political party to determine if the results differed by party.

Discussion and conclusions:

Together, these results suggest there are both personal and office-level characteristics affecting the federal staffers’ engagement with knowledge brokers. This work further informs efforts to bridge the gap between science and policy by informing knowledge brokers which offices and staffers they may want to approach.
The Body of the Meretrix and the Sexualization of Simo’s House in Plautus’ Mostellaria
Authors: Nichols Marden Fitzpatrick
Published: September 2024

Abstract: In Plautus’ Mostellaria , the enslaved Tranio covers up the young Philolaches’ purchase of the meretrix Philematium’s freedom by telling Philolaches’ father Theopropides that his son blew a fortune on the house next door. Though Philematium is hidden out of sight for much of the play, her body materializes in the feminizing language through which Tranio, Theopropides, and the owner Simo describe this house. Their conversation at the threshold transforms Theopropides into the literary trope of the meretrix ’s excluded lover and calls to mind both the disempowerment of meretrices through the process of aging and the power they wield through pregnancy.
Brother Outsider: Memoir and the Strategies of the Awkward Black
Authors: Simpson Tyrone R.
Published: September 2024

Abstract: Using cultural theory, particularly theories of affect, this essay analyzes Ta-Nehisi Coates’s memoir A Beautiful Struggle (2009) to highlight awkwardness as a trope that recent Black autobiographers deploy to underscore their racial interstitiality and to negotiate their fluctuating identification with blackness—a racial condition that by dint of Civil Rights reform entails both social privileges and persecutions. I show that the use of this trope seeks to produce a new racial category altogether.
An Unmoored Life: Mobility, Reading, and Life Writing in Richard Norwood’s (1590–1675) Confessions
Authors: Holmberg Eva Johanna
Published: September 2024

ABSTRACT: This article situates Richard Norwood’s (1590–1674) manuscript spiritual autobiography “Confessions” at the intersection of diverse literary influences and modes of writing, including artisan and “middling sort” life writing and travel writing of the early modern period. It argues that, in Norwood’s hands, spiritual autobiography became a highly flexible textual template and a rich testimony of his mobility, which intertwined with and gave shifting meanings to Norwood’s spiritual and embodied movement throughout the narrative. My argument is informed by a material reading of the manuscript (held in Bermuda Archives) and recent work in nonlinear and “ongoing” migration and mobility studies, seeing Norwood’s text as a rich retrospective, yet unsettled record of his perpetual geographic and social mobility, which Norwood explained by his precarious employments and inability to settle in his faith. Considering the material text in relation to Norwood’s mobility allows scholars to approach the text and its author from a fresh vantage point, and to reevaluate its retrospective processing, construction, and editing, appreciating how “Confessions” presents Norwood’s life as “unmoored,” never reaching the spiritual settling he so yearned for.
Marie Durand (1711–1776): Vicarious Strategies in the Letters of a Huguenot Detainee
Authors: Baker Nora
Published: September 2024

Abstract: Following the Revocation of the Edict of Nantes in 1685, a great number of French Protestants, or Huguenots, left their homelands in order to be able to practice their religion freely. However, in some parts of France—particularly the southwest—pockets of Protestantism clung on through the eighteenth century. Those found guilty of involvement with clandestine Calvinist gatherings nonetheless ran the risk of imprisonment. Marie Durand (1711-76) spent thirtyeight years confined to the Tour de Constance in Aigues-Mortes due to her connections to Protestant rebels. In spite of the restrictive environment in which she found herself, Durand maintained links to the outside world by keeping up correspondence with exiled pastors and family members. Scholarship on Durand has to date largely focused on uncovering theological aspects of her writing, or on situating her within Enlightenment movements for religious tolerance. The present article centers instead on Durand's use of letters as therapeutic tools. Through insisting on her maternal instincts, and on her connections to the world beyond the tower, Durand constructed an identity distinct from that of a prisoner. In her letters, she crafted a world in which she could mentally escape her confines, a practice which enabled the survival of her ego amid harsh circumstances. This article focuses in particular on the importance to Durand of her bond with her niece, who lived hundreds of miles away in Switzerland, and whom the detainee did not meet in person until after her release. The depiction of this connection in Durand's surviving letters offers insight into how relationships can aid resilience, even when they are not physically realized.
Measuring the spherical curvature radius based on optical fractional Fourier transform
Authors: Dong Wen-Xiu , Wei Hong-Tao , Lu Ming-Feng , Hu Jin , Zhang Yan , Yang Yi-Xiao , Wu Jin-Min , Zhang Feng , Tao Ran
Published: September 2024

The optical measurement of the spherical curvature radius can be converted to the detection of the chirpiness of a chirp signal, thus can be realized by the optical fractional Fourier transform with chirp-basis.
Simple few-shot method for spectrally resolving the wavefront of an ultrashort laser pulse
Authors: Smartsev S. , Liberman A. , Andriyash I. A. , Cavagna A. , Flacco A. , Giaccaglia C. , Kaur J. , Monzac J. , Tata S. , Vernier A. , Malka V. , Lopez-Martens R. , Faure J.
Published: September 2024

We introduce a novel method for spatio-spectral characterization of ultrashort pulses. Our custom iterative algorithm, capable of color separation, retrieves phase information from speckles generated through a specialized pinhole mask.
Stable Radio Frequency Transfer Based on Phase Modulation with Michelson Interferometer Demodulation
Authors: Liu Qingwei , Wang Zhaohui , Dong Jiameng , Gao Hao , Yu Song , Luo Bin
Published: September 2024

We experimentally demonstrate stable radio frequency transfer based on phase modulation and single port detection. Michelson interferometer is utilized for demodulation. Compared to the conventional intensity modulation scheme, the superior performance is obtained.
Inch-scale achromatic planar flat lens doublet reshaping near-eye display
Authors: Lin Dajun , Hayward Tina M. , Majumder Apratim , Menon Rajesh
Published: September 2024

We demonstrate an inch-scale planar multi-level diffractive lens (MDL) doublet for near-eye display, delivering 90° field-of-view (FOV), diffraction-limited focusing, while maintaining extremely low weight (~ 6 grams).
A Feed Forward Digital PID Controller with Auto-relocking Features for Sub-kHz External Cavity Diode Lasers
Authors: Tatenguem Hervé , Aßmann Christian , Schmidtmann Sebastian , Sacher Patricia , Honsberg Martin , Sacher Joachim
Published: September 2024

Narrow linewidth lasers with high stability are a key enabling technology in high-impact applications such as quantum technologies and laser surgery. Stabilizing such lasers requires the design of efficient Proportional-Integral-Derivative (PID) controllers. In order to tackle this design challenge, we successfully designed and used a PID to stabilize a VBG based external-cavity diode lasers with ultra-narrow linewidth.
Ultrafast Quasi-Beam Shaping with Cascaded Scan Systems for Laser Materials Processing
Authors: Lange Felix , de Andrade Both Lucas , Zecherle Markus , Schlüter Holger , Stollenwerk Jochen , Holly Carlo
Published: September 2024

On-the-fly adaption of laser intensity profiles is of increasing interest for laser manufacturing processes but remains challenging. An adaptable ultrafast beam shaping cascaded scan system is demonstrated, and its potential benefits are analyzed.
Preliminary Development of Thermographic Monitoring of the Laser Remelting Process
Authors: Meyer Patrick , Bordatchev Evgueni , Tutunea-Fatan O. Remus
Published: September 2024

The study focuses on the identification and analysis of the process transfer and power-area step response functions and their dependence on the applied power and exposure time.
2.6um Extended InGaAs pin Photodiode With High Shunt Resistance and Improved Linearity for Spectroscopy
Authors: Patadia Arshey , Baliga Shankar , Ward Kyle
Published: September 2024

The extended 2.6 µm InGaAs p-i-n detector discussed, can be operated under reverse bias with guaranteed linear behavior at higher operating voltages. We demonstrate improved detection of CO2 gas and Low-Density Polyethylene using this detector.
Toward very-large-scale nonvolatile electrically programmable photonic integrated circuits with deterministic multilevel operation
Authors: Chen Rui , Tara Virat , Choi Minho , Duta Jayita , Sim Justin , Ye Julian , Zheng Jiajiu , Fang Zhuoran , Majumdar Arka
Published: September 2024

We present a scalable platform for very-large-scale programmable photonics by marrying 300-mm-wafer-scale fab with in-house phase-change material integration, showcasing reversible electrical tuning. We further demonstrate a deterministic multilevel scheme with 2N optical levels.
Femtosecond Laser Based Nanostructuring in the Bulk of Fused Silica
Authors: Gribaudo Ernesto , Vlugter Pieter , Bellouard Yves
Published: September 2024

We develop a femtosecond laser based fabrication technique which exploits near-field enhancement to generate selectively etchable arbitrarily long nanoplanes in the bulk of fused silica. The nanoplanes volumetric morphology and formation mechanism are investigated.
Fabrication of ZnO Quantum Dot Doped Polymer Nanostructures using Two-photon Lithography
Authors: Palwe Ajinkya , Singh Gaurav Pratap , Jaiswal Arun , Rani Sweta , Mukherjee Soumi , Singh Sonu Kumar , Shukla Shobha , Saxena Sumit
Published: September 2024

We demonstrate the fabrication of ZnO doped polymer nanostructures using two-photon lithography. These nanostructures offer a versatile platform with enhanced properties, valuable for various applications spanning electronics, sensing, biomedical, and energy.
Applications of Hadamard-Multiplexed Fluorescence Imaging using a Hyperspectral Camera
Authors: Abbey Emma , Katz Oren , Ferguson Travis , Klose Sarah-Johanna , Pruefert Chris , Loock Hans-Peter
Published: September 2024

We present a hyperspectral fluorescence imaging system based on a Hadamard-multiplexed light source for monitoring spatially inhomogeneous reactions through time and correctly identifying fluorescent components in complex mixtures.
Single-comb Tooth Resolution Direct Frequency Comb Spectroscopy Methods
Authors: Galzerano Gianluca
Published: September 2024

A detailed review of the different methods of direct-frequency-comb-spectroscopy with single comb tooth resolution is reported.
Foundry Manufactured 6-bit Resolution, 150μm Long Slow-Light Electro-Optic Modulator for On-Chip Photonic Tensor Computing
Authors: Zhang Meng , Begović Amir , Yin Dennis , Gangi Nicholas , Gu Jiaqi , Huang Rena
Published: September 2024

We demonstrate 6-bit DAC resolution with an ultra-compact slow-light electro-optic modulator. The 10× modulation length reduction enables 31× compute density, 1.17× energy efficiency, and 36.1× energy efficiency per unit area for photonic tensor computing.
A 70-GHz Lumped-EML Submodule Using Resistance-Optimized LC Resonance for Wide Temperature 112-Gbaud PAM4 Operations
Authors: Yun Seok-Jun , Han Young-Tak , Lee Dong-Hoon , Lee Hyun-Woo , Lee Dong-Hyo , Shin Jang-Uk , Park Sang-Ho , Baek Yongsoon
Published: September 2024

We report on a lumped-EML submodule with 3-dB bandwidths of > 70 GHz over a wide temperature range of 25 ~ 70℃ using a resistance-optimized LC resonance effect, enabling 2-km transmission of 112-Gbaud PAM4 signals.
Electro-optic frequency combs carrying orbital angular momentum
Authors: He Jinze , Jia Xingyu , Wei Bingyan , Wu Guanhao , Li Yang
Published: September 2024

We report the generation of electro-optic frequency comb carrying orbital angular momentum, based on which we demonstrate the simultaneous measurement of the rotational speed and absolute distance of a rough object.
Deep Learning-Enabled Classification of HER2 Score in Breast Cancer Using Pyramid Sampling
Authors: Selcuk Sahan Yoruc , Yang Xilin , Bai Bijie , Zhang Yijie , Li Yuzhu , Aydin Musa , Unal Aras Firat , Gomatam Aditya , Guo Zhen , Angus Darrow Morgan , Kolodney Goren , Atlan Karine , Haran Tal Keidar , Pillar Nir , Ozcan Aydogan
Published: September 2024

We present an automated, deep learning-based method for HER2 score classification in breast cancer, achieving 85.47% accuracy on tissue microarrays from 300 patients. This method can significantly improve the HER2 evaluation process, saving diagnostician time.
QCL-QEPAS sensor for Rapid Multispecies Detection in the MIR region: Case studies CH4, C2H2, NH3 and N2O
Authors: Tatenguem Hervé , Aßmann Christian , Schmidtmann Sebastian , Sacher Patricia , Honsberg Martin , Sacher Joachim
Published: September 2024

To meet the requirements for multi-species gas analysis, quartz-enhanced photoacoustic spectroscopy (QEPAS) is used in combination with a QC-based external cavity laser system. Especially high scan rates are of great importance for the analysis and monitoring of multiple species in a sample, where the composition can change rapidly. By integrating piezoelectric actuators extremely high sampling rates can be achieved. In this work, results on the detection of multiple trace gases by sequential quasi-simultaneous measurements are presented. The requirements of multi-species detection, widely tuning range, fast switching, and low-cost system are met by our work.
Aerial Gas Mapping Lidar for Methane Emission Source Localization, Quantification, and Large-Scale Statistical Characterization
Authors: Kunkel William M. , Donahue Christopher P. , Altamura Dominic T. , Dudiak Cameron , Moscona-Remnitz Benjamin , Goldsworth Nelson C. , Kennedy Brandon , Thorpe Michael J.
Published: September 2024

Bridger Photonics measures methane emissions throughout the oil and natural gas supply chain. We describe sensor operation and requirements for large-scale emission inventories, including equipment identification, emission rate quantification accuracy, detection sensitivity, and sample coverage.
Quantum-enhanced Optical Beat-note Detection beyond 3-dB Noise Penalty of Image Band
Authors: Anai Keitaro , Enomoto Yutaro , Omura Hiroto , Nagano Koji , Izumi Kiwamu , Endo Mamoru , Takeda Shuntaro
Published: September 2024

We propose and demonstrate a method to, in principle, completely remove shot noise of optical beat-note detection using squeezed light. This leads to improving the sensitivity of various spatial/temporal measurements.
Single-pixel Compressive Imaging with Single Photon Counting
Authors: Li Lili , Thomas Matthew , Kumar Santosh , Huang Yu-Ping
Published: September 2024

We experimentally demonstrate a compressive imaging system by utilizing single-pixel detection at a single-photon level and a deep neural network. As a benchmark test, MNIST handwritten digits could be reconstructed at -27 dB signal to noise ratio.
Lithium tantalate photonic integrated circuits for high volume manufacturing
Authors: Wang Chengli , Li Zihan , Riemensberger Johann , Lihachev Grigory , Churaev Mikhail , Ji Xinru , Huang Kai , Ou Xin , Kippenberg Tobias J.
Published: September 2024

We demonstrate the first photonic integrated circuit platform using Lithium Tantalate (LiTaO3), achieving waveguides with low losses (5.6 dBm−1), Mach-Zehnder modulators with a 40 GHz electro-optical bandwidth and a 1.96 V·cm voltage-length product, along with microresonators supporting dissipative Kerr soliton generation.
Hybrid Integration of Semiconductor Lasers: Impact of Matching Laser AR Coatings to Photonic Wire Bonds
Authors: Esmaeeli Omid , Mitchell Matthew , Bickford Justin , Grillot Frederic , Chrostowski Lukas , Shekhar Sudip
Published: September 2024

We investigate the influence of anti-reflection (AR) coating index on the performance of distributed feedback (DFB) lasers when integrated to a fiber using photonic wire bonds (PWBs). We compare the performance of air and polymer-matched AR-coated DFB lasers.
A Dual DFB Laser Based Temperature Sensor
Authors: Keskin Mehmet Ziya , Yentur Abdulkadir , Ozdur Ibrahim Tuna
Published: September 2024

In this manuscript, we present a temperature sensing method that utilizes a dual fiber laser system based on two adjacent pi-phase shift fiber Bragg gratings with a slight difference in wavelength.
Wearable Microfiber-Based Senor Chip with Active Adaptive Pressure Unit for Cardiovascular Assessment
Authors: Liu Yunfei , Li Liangye , Cai Heyi , Sheng Shunfeng , Xu Wangyang , Shi Zhengxuan , Yan Zhijun , Sun Qizhen
Published: September 2024

We presented an accurate and wearable microfiber-based sensor chip with an active pressure adaptation unit for cardiovascular assessment, exhibiting an accuracy of 93.75% for arteriosclerosis assessment and errors of 0.0254 ± 6.1977ms for inter-beat interval.
Optimized photonic integrated circuit components for optical coherence tomography at 1060 nm
Authors: Hao Senyue , Adkins Aaron J , Zhang Yitian , Zhou Chao
Published: September 2024

To implement optical coherence tomography on photonic chips, we developed optimized and experimentally validated silicon nitride-based components for photonic integrated circuits in order to achieve high sensitivity and axial resolution for OCT at 1060 nm.
Ultra-Sensitive Mid-IR Gas Sensing: Engineering High Group Index Air-Core Modes in Vertical Photonic Crystal Waveguide Arrays
Authors: Fan Kang-Chieh , Midkiff Jason , Jain Sourabh , Hlaing May H. , Chen Ray T.
Published: September 2024

An air-core mode with an even mode and high group index in the VPCW structure has been confirmed. Optimizing the selection of the appropriate air-core mode improves the Mid-IR detection capabilities of the targeted analytes.
Differential Homodyne Detection Using An Integrated Photonics Chip
Authors: Carver Christian , Fisher Benjamin , Marchant Jared , Chiang Shiuh-Hua Wood , Camacho Ryan M.
Published: September 2024

We present a homodyne detection system that uses a novel differential amplification scheme with potential applications for quantum key distribution (QKD), quantum random number generation (QRNG) or quantum state tomography.
Diffuse Imaging using Foveated FMCW LiDAR
Authors: Balaji Muralidhar M. , Ahsanullah Danyal , Rangarajan Prasanna
Published: September 2024

The proposed work combines ideas from foveated sensing and FMCW LiDAR to monitor scattering or absorption variations inside a diffusely scattering medium. Dense spatial maps of inhomogeneities embedded inside 8cm thick scattering medium are recovered.
Pulsed-Diode-Pumped, Fiber-Based Polarization-Entangled Photon Source
Authors: Shahaj Andi , Greenwood Alexander C. B. , Russett Jackson , Chen Chiangjia , Gladyshev Alexey V. , Kazansky Peter G. , Qian Li
Published: September 2024

We demonstrate a low-cost, fiber-based, pulsed entanglement source, using periodically-poled silica fiber and a pulsed 780nm diode laser, which generates ~1ns pulses of polarization-entangled photon pairs at up to 60MHz, 0.15 pairs/pulse.
A Gigahertz-rate source of Polarization-Entangled Photons using Type-0 PPLN Waveguides
Authors: Ndagano Bienvenu , Smith Ruaridh , Wright Lewis , Pandiyan Krish , McCarthy Sarah , Anwar Ali , Gawith Corin , McKnight Loyd J.
Published: September 2024

We demonstrate a source of polarization-entangled photons based on periodically poled lithium niobate waveguides that produces pairs of entangled photons at a rate of 1.25 gigahertz and a CHSH entanglement parameter of 2.73.
Photonic Crystal Enhanced Fluorescence Emission for Ultrasensitive Biosensing in Liquid Biopsies
Authors: Xiong Yanyu , Barya Priyash , Zhou Lifeng , Shepherd Skye , Liu Shengyan , Akin Lucas D. , Arogundade Opeyemi H. , Canady Taylor D. , Che Congnyu , Cooper Laura , Dwivedy Abhisek , Gupta Rohit , Huang Qinglan , Igarashi Anh , Lee Han Keun , Race Caitlin M. , Song Tingjie , Tibbs Joseph , Wang Xiaojing , Wang Tong , Rong Lijun , Kohli Manish , Smith Andrew M. , Singamaneni Srikanth , Wang Xing , Cunningham Brian T.
Published: September 2024

We present advanced biosensing methods with photonics crystal enhanced fluorescence emission from Quantum Dots, Plasmonic Fluorophores, and DNA Nano-grippers for nucleic acid, protein, and pathogen detection in liquid biopsies.
From Head to Toe: Non-contact Laser Heart Rate and Respiration Rate Detection under Obstructive Conditions
Authors: Wang ChenChia , Jin Feng , Trivedi Sudhir , Goncharovsky Mark , Wang Irwin , Zientara Gary P. , Khurgin Jacob , Choa Fow-Sen
Published: September 2024

We demonstrate experimentally laser-based wireless, non-contact sensing of vital physiological signatures including heartbeat and respiration rates, from human subjects without skin access by the laser beam, with nearly arbitrary interrogation locations, from cranium to phalanges.
300-mm monolithic CMOS silicon photonics foundry technology [Invited]
Authors: Bian Yusheng , Hirokawa Takako , Lee Won Suk , Chandran Sujith , Giewont Ken , Aboketaf Abdelsalam , Liu Qidi , Sporer Ryan , Rakowski Michal , Dezfulian Kevin , Gong Ming , Najafi Arman , Ritchie Chris , Cho Jae-Kyu , Sorbara Massimo , Houghton Thomas , Lin Yarong , Zhang Michelle , Song Shenghua , Wong Helen , Chowdhury Zahidur , Dasgupta Arpan , Barakat Farid , Kim Jason , McLean Kate , Ding Hanyi , Wu Jingyu , Cao Rongtao , Banihashemian Fahimeh , Mosleh Salman , Beaudoin Felix , Gallagher Ryan , Popielarski Brian , Sharma Prateek , Afzal Francis O. , Gheith Mohamed , Stobert Ian , Ghosal Mini Modh , Prasad Prashanth Raghavendra , Sirdeshmukh Ranjani , Tinkler Janet , Tang Teck-Jung , Anderson Frederick G. , Robson Norm , Choi Seungman , Paganini Andrea , Jamin Fen , Ruparelia Vaibhav , Lee Jae Gon , Melville Ian , Gifford George , Gupta Vikas , Yu Anthony , Ferain Isabelle , Letavic Ted
Published: September 2024

This paper reviews recent advancements in GlobalFoundries (GF) FotonixTM technology: a 300-mm monolithic CMOS silicon photonics (SiPh) foundry platform. The discussion encompasses photonic and CMOS device libraries, advanced packaging, PDK compact models, reliability, and system-level demonstrations.
A Silicon-Based Integrated Photonic-Assisted Emitter for High Date-Rate Microwave Wireless Communication
Authors: Wei Zhujun , Zhang Qiang , Fu Zhilei , Ning Nannan , Huang Qikai , Yang Jianyi , Yu Hui
Published: September 2024

In this work, we propose and demonstrate a silicon-based integrated photonic-assisted emitter. It consists of an aperiodically distributed traveling wave photodetector (TWPD), a compact Yagi antenna and a bias circuitry network. The measured radiated power of this emitter is above -20 dBm from 31 GHz to 38 GHz. Furthermore, a wireless data transmission at 3/5/8 Gbps is demonstrated.
Refractive Index Sensing using the optical heterodyne method and Photonic crystal hybrid laser
Authors: Oliveria T.O. , Vorobev A.S. , Kotlyar Maria , Iadanza S. , O’Faolain L.
Published: September 2024

We have demonstrated a new approach to refractive index sensing based on the optical heterodyne method and a refractive index sensitive hybrid laser. We achieved over an order of magnitude improvement in the detection limit relative to the RI measurement based on a passive optical resonator.
Development of a surface plasmon resonance sensor for Marine dissolved methane
Authors: Ismaeel R. , Lee T. , Steigenberger S. , Papadimitriou E. , Brotin T. , Siracusa F. , Mowlem M.
Published: September 2024

A miniaturized system based on the surface plasmon resonance (SPR) for refractive index sensing has been developed to demonstrate its feasibility as miniaturized Dissolved methane marine sensor. A massive dynamic range has been achieved using ZnSe as the dielectric material for the prism guiding the light.
Towards scalable on-chip excitation of micro- and nano-photonic emitters
Authors: Xia Zhongyi , Jevtics Dimitars , Guilhabert Benoit , McKendry Jonathan J.D. , Tan Hark Hoe , Jagadish Chennupati , Dawson Martin D. , Strain Michael J.
Published: September 2024

Individually addressable micro-LED-on-CMOS arrays are promising candidates for scalable on-chip excitation of micro- and nano-photonic emitters. Using this technology platform, frequency modulated excitation of waveguide-embedded nanowire devices was demonstrated at MHz rates.
Real-time CV-QKD Reception Resilient to Urban Atmospheric Turbulence
Authors: Frazão João dos Reis , van Vliet Vincent , van der Heide Sjoerd , van den Hout Menno , Gümüş Kadir , Albores-Mejia Aaron , Škorić Boris , Okonkwo Chigo
Published: September 2024

We show a real-time CV-QKD receiver realization over a turbulent optical free-space channel with secret key rates up to 2.2 Mbit/s. The real-time GPU receiver evaluated quantum signal integrity under various turbulence scenarios, emulating an 800 m urban terrestrial FSO link.
Improving twin-field QKD with optical clock technologies
Authors: Levi F. , Bertaina G. , Clivati C. , Donadello S. , Liorni C. , Meda A. , Virzì S. , Gramegna M. , Genovese M. , Calonico D. , Dispenza M. , Degiovanni I. P.
Published: September 2024

Coherent lasers and fiber interferometry tools originally developed for optical clock comparisons can improve the performance of quantum key distribution links in real-world implementations. Here, we quantify the performance achievable under the most common protocols in various link conditions and topologies, also taking into account advanced fiber noise reduction strategies.
Monolithically Integrated High Performance Silicon Nitride Passive Optical Components
Authors: Chandran Sujith , Bian Yusheng , Lee Won Suk , Abumazwed Ahmed , Liu Neng , Xu Luhua , Ding Hanyi , Aboketaf Abdelsalam , Rakowski Michal , Dezfulian Kevin , Najafi Arman , Hirokawa Takako , Liu Qidi , Stricker Andy , Krishnamurthy Subramanian , McLean Kate , Sporer Ryan , Zhang Michelle , Song Shenghua , Wong Helen , Mosleh Salman , Deptuck Dan , Tinkler Janet , Lee Jae Gon , Sorbara Massimo , Giewont Ken , Gupta Vikas , Yu Anthony , Letavic Ted
Published: September 2024

We demonstrate low-loss SiN passive optical components, encompassing straight and bend waveguides, 1×2MMI, 2×2MMI, directional-coupler, waveguide crossings and cWDM, on a monolithic silicon photonics platform. Statistical hardware performance data validates the mass manufacturability of these building-blocks.
Heterogeneous Photonics in Visible and Beyond
Authors: Tran Minh , Zhang Zeyu , Shen Boqiang , Shen Yang , Dorche Ali Eshaghian , Lee Woonghee , Asawa Kaustubh , Kim Glenn , Kim Nathan , Zhang Chong , Komljenovic Tin
Published: September 2024

We present some recent advancements related to extending the wavelength range of heterogeneous silicon nitride photonic platform, achieved by integrating indium-phosphide, gallium-arsenide and gallium-nitride based active components in a wafer scale process.
Dispersiveness of Faraday Mirrors Used to Compensate Random Polarization Distortion is Mitigated by the Randomness Itself
Authors: Hegazy S. F. , Obayya S. S. A. , Saleh B. E. A.
Published: September 2024

Faraday mirrors, widely used to compensate random polarization distortion in retracing fibers, as in quantum key distribution, may be operated with shorter pulses than previously thought, since their dispersion is remarkably mitigated by randomness itself.
Quantum Inertial Sensors for Field Applications
Authors: Ménoret V. , Antoni-Micollier L. , Arnal M. , Gautier R. , Janvier C. , Richard J. , Vermeulen P. , De Castanet Q. D’Armagnac , Cognets C. Des , Jarlaud V. , Battelier B. , Rosenbusch P. , Majek C. , Desruelle B.
Published: September 2024

Cold atom quantum sensors have now left laboratories. We have operated several gravimeters in field conditions, for example on a volcano, and are working on next generation onboard devices for geophysics and inertial navigation.
Complex Dielectric Function of Photochromic Thiazolothiazole Embedded Polymers Determined by Spectroscopic Ellipsometry
Authors: Shuchi Nuren , Adams Tyler , Stinson V. Paige , McLamb Micheal J. , Louisos Dustin , Boreman Glenn D. , Walter Michael G. , Hofmann Tino
Published: September 2024

The complex dielectric function of photochromic thiazolo[5,4-d]thiazole embedded in polymer is reported in the spectral range from 0.8 to 2.5 eV. Strong absorption bands in the measured spectral range are observed depending upon its redox states.
Mid-infrared 2D optical phased array with mirror emitters in InP
Authors: Midkiff Jason , Hsiao Po-Yu , Camp Patrick T. , Chen Ray T.
Published: September 2024

A 2D beam steering optical phased array operating at a single mid-infrared wavelength is demonstrated. The device relies on a sparse aperiodic distribution of small-area mirror emitters to achieve ~1000 resolvable points.
Adjustment of dynamic range for integrated chip-scale optomechanical transducers compatible with CMOS technology
Authors: Yerebakan Talha , Flores Jaime Gonzalo Flor , Samoylov Alexis , Wong Chee Wei
Published: September 2024

We introduce a technique for adjusting the optomechanical transducer integrated CMOS heaters. This method enables the refinement of both the optical mode and the achievement of an adaptive dynamic range.
Thermal Shock Resistant Optical Packaging of Thin Film Lithium Niobate Devices for Cryogenic Operation
Authors: Witt Donald , Warner Hana K. , Rajabali Shima , Lončar Marko
Published: September 2024

We present an optically packaged thin film lithium niobate device. We show that this packaged device is capable of cryogenic operation and is resistant to extreme thermal shock.
Generalization Performance of Thermal Crosstalk Models for Programmable Photonic Integrated Circuits
Authors: Teofilovic I. , Cem A. , Yankov M. P. , Zibar D. , Da Ro F.
Published: September 2024

We apply physics-based and data-driven models to predict thermal crosstalk-induced resonant wavelength shift of microring resonators. Generalization of the trained models is evaluated by transferring them to predict for different resonators on the same chip.
Lissajous Singularities in Young’s Interference Experiment
Authors: Miao Wenrui , Visser Taco D. , Gbur Greg
Published: September 2024

In Young’s experiment, we investigate the interference of two bichromatic vec-tor beams, focusing on the conditions for generating Lissajous-type polarization singularities on the observation screen. This marks the first demonstration of the singular behavior of polarization in a two-frequency field in Young’s interference experiment.
Interaction of two-dimensional surface polaritons with metallic nano-plates
Authors: Lee Seojoo , Kang Ji-Hun
Published: September 2024

We theoretically investigate the interaction of two-dimensional surface plasmons (2DSPs) with metallic nano-plates. Our theory focuses on the reflection properties of strongly confined 2DSPs, including reflection amplitude and anomalous reflection phase shift.
Pyroelectricity in Lithium Niobate Waveguides in the Thermal Transition to Cryogenic Temperatures
Authors: Thiele Frederik , Hummel Thomas , Lange Nina Amelie , Dreher Felix , Protte Maximilian , vom Bruch Felix , Lengeling Sebastian , Herrmann Harald , Eigner Christof , Silberhorn Christine , Bartley Tim J.
Published: September 2024

Lithium niobate serves as a key quantum photonics integration platform, hosting cryogenic quantum optical devices such as SNSPDs and quantum dots. We explore the impact of pyroelectricity in the cryogenic environment in lithium niobate waveguides.
Time-Domain Optomechanics with Plasmonic Nanostructures
Authors: Zahin Farhan I. , Behnke Adam W. , Pollei Thomas J. , Webb Kevin J.
Published: September 2024

The time-dependent pressure on a patterned gold–silicon nitride membrane is shown to depend on the optical pulse width relative to the plasmon cavity resonance. This spatiotemporal optical force density regulation enables new optomechanical device paradigms.
Deep Transfer Reinforcement Learning in Nanophotonics: A Multi-Objective Inverse Design Approach
Authors: Shams Abdullah Bin , Akib Abdur Rahman , Aitchison Stewart
Published: September 2024

Two time-efficient transfer learning based multi-objective inverse design frameworks, for nanophotonics, using Deep Reinforcement Learning are proposed. The models can easily be adapted to a change of structural, material and number of input/output parameters.
Novel Time-Gated Luminescence Measurement System Based on All-Fiber Configuration
Authors: Kong Lei , Deng Qisheng , Shu Xuewen
Published: September 2024

We report a novel and low-cost time-gated luminescence measurement system based on all-fiber configuration, which uses simple and easily integrated optoelectronic devices to replace complex spatial optical systems and achieve millisecond temporal resolution.
Releasing Residual Stress in Metal-Coated Fibers Through Heat Treatment Process for Distributed High-Temperature Sensing Applications
Authors: Dey Koustav , Saha Rony Kumar , Narasimman S. , Zhang Bohong , Mumtaz Farhan , O’Malley Roanld J. , Smith Jeffrey D. , Gerald Rex E. , Huang Jie
Published: September 2024

The study investigates a refined heat treatment methodology tailored for commercial metal-coated optical fibers, with the objective of accurately reducing residual stress to prime them for use in distributed sensing applications at high temperatures.
Compensation of Scale Factor Error for Open-loop Fiber Optic Gyroscopes
Authors: Zhu Lanxin , Huang Huimin , Cao Xinyu , Chen Yanjun , Li Zhengbin
Published: September 2024

Theoretical analysis of the scale factor nonlinearity (SFN) in open-loop fiber optic gyroscopes is conducted. A k-factor compensation method is introduced, effectively reducing SFN to 2.5 ppm over the range of -300 to +300°/s.
Birefringence in an α-hematite single-crystal in Terahertz range
Authors: Netto Giovanni Budroni , de Paula Siqueira Jonathas , da Cruz Flávio Caldas
Published: September 2024

We employed terahertz time-domain spectroscopy to investigate the birefringence of single crystal α-hematite in the frequency range of 100 to 700 GHz.
Wide-angle diffraction-limited quadratic metalens
Authors: Chen Kuan-Pin , Chen Meng-Hsin , Chen Bo-Wen , Su Vin-Cent , Wu Chao-Hsin
Published: September 2024

We successfully demonstrated an aberration-free wide-angle metalens with a numerical aperture of 0.24 at a wavelength of 450 nm. The metalens were verified by experiment to achieve a diffraction-limited focusing under the angle of incidence from 0 to 17.5 degrees.
A Fast Reference-less Error Correction Method for Dual-comb Spectroscopy based on Free-running Fiber Lasers
Authors: Ma Qiuying , Zhang Pengpeng , Yu Haoyang , Wang Xiaohao , Liang Xiaojun , Ni Kai
Published: September 2024

A fast reference-less error correction method based on truncating and zeroing and cross-correlation for suppressing complex noises in the dual-comb spectroscopy was proposed. The experimental results demonstrated that the coherent averaging results of the dual-reference digital error correction using 6.4 s interferograms was achieved with only 0.2 s signal.
Mitigating Misattributions in Single-Photon Detector Arrays with Row–Column Readouts
Authors: Bharadwaj Shashwath , Kitichotkul Ruangrawee , Agarwal Akshay , Goyal Vivek K
Published: September 2024

A novel estimator resolves the ambiguity of spatial locations of multiphoton coincidences in single-photon detector arrays. This method mitigates misattributions introduced by multiplexed readout mechanisms that are commonly used to implement large-scale arrays.
Characterization of a Remote Fiber Optic Strain Sensing System
Authors: Daxini Swapnil , Aydin Deniz , Giron-Santos Arthur , Barnes Jack , Gu Xijia , Loock Hans-Peter
Published: September 2024

We present a passive, all-fiber strain sensing system capable of measuring strain over 75 km using a diode laser locked to a π-shifted grating, with potential applications to develop a fiber optic hydrophone.
Assessment on frequency stability of photonic supercontinuum based optical frequency comb
Authors: Yang Lu , Chu Yongyuan , Sun Suwan , Shi Zhiming , Guo Hairun
Published: September 2024

We detected the carrier-envelope frequency and repetition rate of laser comb via the visible dispersive wave of supercontinuum generation in chip-scale silicon nitride waveguide, and assessed the frequency stability through phase-locked amplifier.
High Gain Squeezing in Resonators: Beyond Lorentzian Enhancement
Authors: Sloan Michael , Viola Alice , Liscidini Marco , Sipe J. E.
Published: September 2024

We introduce a novel method for modelling squeezed light generation in microring systems beyond the perturbative regime, without necessitating a Lorentzian resonance structure. As such, this method is applicable within broad ranges of finesse.
Enhanced Anti-Stokes Photoluminescence from Yb:YLF Nanoparticles with YLF Shell
Authors: Gharde Shruti I. , Baca Mia I. , Torres-Chen Kyo , Jamil Erum , Ivanov Sergei A. , Kuo Winson C.-H. , Huber Dale L. , Osiński Marek
Published: September 2024

We report on investigations of anti-Stokes photoluminescence (ASPL) from YLF nanoparticles doped with 10% Yb, comparing core-only and core/shell structures. Addition of the YLF shell to Yb:YLF core significantly increases ASPL from the nanoparticles.
Monolithic high contrast grating integrated with metal as a transparent electrode for ICLED devices
Authors: Ekielski Marek , Zadura Magdalena , Bogdanowicz Karolina , Szerling Anna , Głowadzka Weronika , Czyszanowski Tomasz , Petrovic Borislav , Bader Andreas , Hartmann Fabian , Höfling Sven
Published: September 2024

In this paper we present results of metalMHCG fabrication for GaSb-based ICLED by means of electron beam lithography, e-beam metal evaporation and plasma etching process. Configuration of metalMHCG was designed to maximize transmittance of TE polarized light in the mid-infrared wavelength region.
10-Gbit/s All-Optical Free Carrier Absorption Switching Induced by Two-Photon Absorption in Silicon Carbide Micro-ring on Silicon Platform
Authors: Cheng Chih-Hsien , Matsumoto Atsushi , Yamamoto Naokatsu , Akahane Kouichi , Lin Gong-Ru
Published: September 2024

10-Gbit/s all-optical free carrier absorption switching based on the two-photon absorption is demonstrated by the silicon carbide micro-ring with a carrier lifetime of 20 ps for future synchronous OC-192 optical networking on the silicon platform.
A Path to Ultra-Fast Non-Volatile Amplitude-Only Spatial Light Modulation using Phase-Change Materials
Authors: Shields Joe , de Galarreta Carlota Ruiz , Penketh Harry , Bertolotti Jacopo , Wright C. David
Published: September 2024

The design, fabrication and characterisation of an amplitude-only, constant-phase spatial light modulator which exhibits high relative reflection contrast (220%) and near zero phase contrast (< π/50) is shown, with potential application to dynamic wavefront control.
Photonic Crystal Slab Metalens on Amorphous Silicon Platform
Authors: Chen Yudong , Pan Mingsen , Sun Yuze , Zhou Weidong
Published: September 2024

We report a novel metalens design based on photonic crystal slab (PCS) resonance modes. By implementing the PCS resonance on an amorphous silicon on quartz platform, we experimentally verified with a focusing metalens phase plate.