IEEE Journal of Selected Topics in Quantum Electronics最新文献

Advanced Transparent Radiative Coolers: Materials, Design, and Applications 先进的透明辐射冷却器：材料，设计和应用

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-03 DOI: 10.1109/JSTQE.2025.3585564

Do Hyeon Kim;Hyunkyu Kwak;Min Seok Kim;Young Min Song

引用次数: 0

A Two-Way Analysis of Brain Synchrony: Assessing Brain-Event Relationships Using Information Metrics 脑同步的双向分析：利用信息度量评估脑-事件关系

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-23 DOI: 10.1109/JSTQE.2025.3582203

Satoshi Morimoto;Yasuyo Minagawa

{"title":"A Two-Way Analysis of Brain Synchrony: Assessing Brain-Event Relationships Using Information Metrics","authors":"Satoshi Morimoto;Yasuyo Minagawa","doi":"10.1109/JSTQE.2025.3582203","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3582203","url":null,"abstract":"Functional near-infrared spectroscopy (fNIRS) is well-suited for hyperscanning in naturalistic situations, offering significant potential for assessing social brain function in everyday life. Previous studies have reported inter-brain synchrony during social interactions and sought to explore its mechanisms by correlating behavioral events with brain signals. However, commonly used regression analyses, such as Generalized Linear Models (GLM), rely on target events hypothesized as explanatory variables. This reliance introduces a dependency on the researcher’s assumptions, which can compromise replicability in social neuroscience. While such dependency may be less problematic in strictly controlled experimental paradigms focused on specific hypotheses, it poses significant challenges in naturalistic experiments like social interactions, where numerous events and signals may serve as potential explanatory variables. To address this limitation, we introduced a new approach: signed-normalized mutual information for wavelet transform coherence (WTC-sNMI). This method enables a two-way analysis to evaluate relationships between event sequences and brain synchrony. Through simulations and real-data applications, we evaluated the performance of the proposed method. The results showed that WTC-sNMI analysis performed comparably to regression analysis in detecting both inter-brain synchrony and within-brain synchrony (i.e., brain connectivity). Moreover, applying WTC-sNMI to a tapping dataset revealed the expected patterns of synchrony between the lateral sides of the motor area. These findings validate the effectiveness of WTC-sNMI as a robust two-way analytical tool for studying brain-event relationships.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 4: Adv. in Neurophoton. for Non-Inv. Brain Mon.","pages":"1-12"},"PeriodicalIF":4.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

256 × 2 InGaAsP/InP Geiger-Mode Avalanche Photodiode Arrays With a Triple-Stage Timing to Digital Converter 带三级定时数字转换器的256 × 2 InGaAsP/InP盖革模式雪崩光电二极管阵列

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-20 DOI: 10.1109/JSTQE.2025.3581720

Yingjie Ma;Jingxian Bao;Mengxuan Liu;Lixia Zheng;Haiyong Zhu;Junliang Liu;Yakui Dong;Wei Kong;Ruikai Xue;Yi Gu;Genghua Huang;Weifeng Sun;Xue Li;Haimei Gong;Jiaxiong Fang

{"title":"256 × 2 InGaAsP/InP Geiger-Mode Avalanche Photodiode Arrays With a Triple-Stage Timing to Digital Converter","authors":"Yingjie Ma;Jingxian Bao;Mengxuan Liu;Lixia Zheng;Haiyong Zhu;Junliang Liu;Yakui Dong;Wei Kong;Ruikai Xue;Yi Gu;Genghua Huang;Weifeng Sun;Xue Li;Haimei Gong;Jiaxiong Fang","doi":"10.1109/JSTQE.2025.3581720","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3581720","url":null,"abstract":"256 × 2 InGaAsP/InP Geiger-mode avalanche photodiode (GmAPD) arrays and a matched readout circuit with a triple-stage timing to digital converter (TDC) are realized. Pixels run asynchronously within the range gate of each frame, allowing measuring the time of flight of up to three reflected laser echoes. A mean array timing precision of 1 ns and a minimum hold-off time (Thoff) of 64 ns are achieved. The measured mean dark count rates are 2.5, 1.0 and 0.5 kHz for the first, the second and the third stage TDC, respectively, under a mean photon detection efficiency (PDE) of 33.1% at 1064 nm, −20 °C and a Thoff of 320 ns. While the cumulative afterpulsing probability (APP) exhibits strongly Vo- and Thoff-dependent behaviors and a temperature-insensitive nature from −20 °C to 20 °C, a cumulative APP of 15% is obtained under a PDE of 20% and a Thoff of 1 μs. Photon count rate measurements indicate trade-off between the photon blockage and the increased afterpulsing probability under shorter Thoff. Furthermore, capabilities of parallel acquirement of three-dimensional laser point cloud and two-dimensional photon count images are also demonstrated, highlights the superiorities of this multi-TDC scheme in both active and passive imaging under strong background interference.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-11"},"PeriodicalIF":4.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards High-Performance Quantum Light Sources via Optimized Epitaxial Growth 通过优化外延生长实现高性能量子光源

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-20 DOI: 10.1109/JSTQE.2025.3581639

Run-Ze Liu;Yong-Heng Huo;Armando Rastelli

引用次数: 0

Validation of the Linearity in Image Reconstruction Methods for Speckle Contrast Optical Tomography 散斑对比光学层析成像图像重建方法的线性验证

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-19 DOI: 10.1109/JSTQE.2025.3581407

Alexander C. Howard;Byungchan Kim;Laura Carlton;Meryem A. Yücel;Bingxue Liu;David A. Boas;Xiaojun Cheng

{"title":"Validation of the Linearity in Image Reconstruction Methods for Speckle Contrast Optical Tomography","authors":"Alexander C. Howard;Byungchan Kim;Laura Carlton;Meryem A. Yücel;Bingxue Liu;David A. Boas;Xiaojun Cheng","doi":"10.1109/JSTQE.2025.3581407","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3581407","url":null,"abstract":"Speckle contrast optical spectroscopy (SCOS) is an optical technique capable of measuring human cerebral blood flow and brain function non-invasively. Its tomographic extension, speckle contrast optical tomography (SCOT), can provide blood flow variation maps with measurements using overlapping source-detector channel pairs. Linearity is often assumed in most image reconstruction methods, but non-linearity could exist in the relations between measured signals and blood flow variations. We have constructed a forward model for SCOT using the Rytov approximation to solve the correlation diffusion equation and compared it with the first Born approximation as well as the more accurate, but computationally expensive Monte Carlo simulation approach. We have shown that the results obtained using the Rytov approximation are in good agreement with the Monte Carlo simulations, while the first Born approximation deviates from the other two methods for large blood flow variations. For instance, the first Born approximation breaks down at around 30% cerebral blood flow (CBF) changes within a volume of size <inline-formula><tex-math>$60times 50 times 40$</tex-math></inline-formula> <inline-formula><tex-math>$text{mm}^{3}$</tex-math></inline-formula>, therefore we recommend using the Rytov approximation above this threshold. We have shown that our defined blood flow index (BFi) measured in SCOT is linearly related to local CBF variations, thus the forward and inverse problems can be solved linearly using the sensitivity matrix approach. We have then demonstrated image reconstruction experimentally showing human brain activations using our recently developed high-density SCOS system. Our method guides experimental system design and data analysis for SCOT.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 4: Adv. in Neurophoton. for Non-Inv. Brain Mon.","pages":"1-8"},"PeriodicalIF":4.3,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11045196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Topological Multi-Mode Photonic Crystal Fiber 拓扑多模光子晶体光纤

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-13 DOI: 10.1109/JSTQE.2025.3579625

Kang She;Guo Sheng;Zhengping Shan;Lin Li;Piaorong Xu;Exian Liu;Jianjun Liu

{"title":"Topological Multi-Mode Photonic Crystal Fiber","authors":"Kang She;Guo Sheng;Zhengping Shan;Lin Li;Piaorong Xu;Exian Liu;Jianjun Liu","doi":"10.1109/JSTQE.2025.3579625","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3579625","url":null,"abstract":"Topologically-protected optical fiber is thought to significantly reduce the backscattering effects caused by the defects or impurities during the light propagation along the fiber length. The Zak phase is a topological invariant that characterizes the phase change of the wave function over one period in a periodic system. Here, we realize the topological transition of two-dimensional Zak phases by tuning the distribution of scattering columns at the propagation constant kz > 0, and demonstrate the corner states formed by the coupling of edge states as the guiding modes of the fiber. This topological guiding mode exhibits a strong localization with an ultra-small mode-field area of 0.3 μm2 (or high nonlinearity) and low confinement loss of ∼ 10−7 dB/km at 1.55 μm. Moreover, the multi-mode nature of this topological fiber is demonstrated by the realization of corner state modes located in the high-order topological bandgap at kz > 0. The high-order corner state modes perfectly match with the results obtained by the mode analysis based on finite element method. This topological multi-mode fiber holds a promise in short-distance backscattering-immune propagation and the nonlinear applications.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-7"},"PeriodicalIF":4.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Call for Papers: Special issue on Emerging Topics for Nanophotonics, Metamaterials and Plasmonics 论文征集：纳米光子学，超材料和等离子体的新兴主题特刊

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-11 DOI: 10.1109/JSTQE.2025.3560157

引用次数: 0

IEEE Journal of Selected Topics in Quantum Electronics Information for Authors IEEE量子电子信息专题杂志

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-11 DOI: 10.1109/JSTQE.2025.3572752

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Call for Papers: Special issue on Advances in Semiconductor Surface-emitting Lasers: VCSELs and PCSELs 半导体表面发射激光器的进展：VCSELs和PCSELs

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-11 DOI: 10.1109/JSTQE.2025.3564800

引用次数: 0

Origins and Mitigation of Scattering-Related Propagation Losses in Suspended GaAs Waveguides for Quantum Photonic Integrated Circuits 量子光子集成电路中悬浮砷化镓波导中散射相关传播损耗的来源和缓解

IF 4.3 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-06-04 DOI: 10.1109/JSTQE.2025.3576388

Miloš Ljubotina;Marcus Albrechtsen;Zhe Liu;Leonardo Midolo;Andraž Debevc;Marko Topič;Janez Krč

{"title":"Origins and Mitigation of Scattering-Related Propagation Losses in Suspended GaAs Waveguides for Quantum Photonic Integrated Circuits","authors":"Miloš Ljubotina;Marcus Albrechtsen;Zhe Liu;Leonardo Midolo;Andraž Debevc;Marko Topič;Janez Krč","doi":"10.1109/JSTQE.2025.3576388","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3576388","url":null,"abstract":"Quantum photonic integrated circuits (QPICs) offer a promising path toward scalable quantum technologies. QPICs rely on the integration of many quantum photonic components and interconnecting optical waveguides for generation, manipulation, and detection of single photons. A key challenge in QPICs is the management and minimization of optical losses, which is particularly critical for single-photon applications. In this paper, we investigate optical propagation losses in strip waveguides within suspended gallium arsenide (GaAs) platforms, which can directly host deterministic single-photon sources but suffer high scattering-related losses. We systematically analyze different scattering loss contributions by investigating four key waveguide perturbation types: sidewall roughness, top surface roughness, surface particles, and suspension tethers. Our approach combines rigorous 3D finite-difference time-domain (FDTD) simulations with experimental measurements to decouple and quantify individual contributions to the total propagation loss. We study two suspended GaAs platforms operating at different wavelengths: an established 930 nm platform and an emerging 1300 nm platform in the telecommunication O-band. Based on our findings, we identify the dominant scattering loss mechanisms and propose novel design-time guidelines and concrete strategies to reduce the main loss contributions by factors of 2.5–5. These improvements are crucial for enabling complex QPICs directly within the native platform of the single-photon source, supporting advances in integrated quantum technologies.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-13"},"PeriodicalIF":4.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11023197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144299178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0