IEEE Journal of Selected Topics in Quantum Electronics最新文献_第3页

Layered Analysis of Injury in the Rat Esophagus Induced by Photodynamic Therapy Using Two-Photon Microscopy 双光子显微镜对光动力治疗大鼠食道损伤的分层分析

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-30 DOI: 10.1109/JSTQE.2025.3593926

Shanlin Yang;Ying Wang;Hongyou Zhao;Defu Chen;Haixia Qiu;Wenzhuo Qiu;Aimin Wang;Jing Zeng;Quanbo Ji;Ying Gu

{"title":"Layered Analysis of Injury in the Rat Esophagus Induced by Photodynamic Therapy Using Two-Photon Microscopy","authors":"Shanlin Yang;Ying Wang;Hongyou Zhao;Defu Chen;Haixia Qiu;Wenzhuo Qiu;Aimin Wang;Jing Zeng;Quanbo Ji;Ying Gu","doi":"10.1109/JSTQE.2025.3593926","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3593926","url":null,"abstract":"The esophagus is characterized by a multi-layered structure with compositional differences in each layer, resulting in layer-specific damage thresholds to photodynamic therapy (PDT). Accurate and efficient evaluation of the damages in each layer of healthy tissues is crucial for a successful PDT treatment when eradicating tumors in esophagus. However, conducting a comprehensive assessment of damage to each layer requires the integration of multiple traditional methods, which can be both time-consuming and labor-intensive. Here, we employed two-photon microscopy (TPM) to image rat esophageal sections and fresh samples with full-layer damage induced by PDT. We find that TPM can precisely identify injuries in each layer of the esophagus, including cellular hyperplasia, lamina propria detachment, loosened and tortuous collagen fibers, as well as vacuolated and atrophied muscle fibers, which are consistent with the detection results of traditional methods. Moreover, TPM possesses unique capabilities not present in traditional methods. For example, TPM successfully detected enhanced perinuclear fluorescence in necrotic esophageal epithelial cells, performed quantitative analysis of collagen fiber changes, and enabled three-dimensional (3D) visualization of structural and morphological alterations caused by the damage. Together, our findings demonstrate that TPM serves as an effective tool for evaluating layer-specific effects induced by PDT, and is expected to have a long-term influence for enhancing the targeting accuracy of PDT in tumor treatment of hollow organs.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 4: Adv. Biophoton. in Emerg. Biomed. Tech. and Dev","pages":"1-13"},"PeriodicalIF":5.1,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843039","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

3D Dirac Semimetal Metamaterial Supported Terahertz Tunable Dual-Functional Polarization Converter 三维狄拉克半金属超材料支撑太赫兹可调谐双功能偏振变换器

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-24 DOI: 10.1109/JSTQE.2025.3592331

Shilin Liu;Wenhan Cao;Jiaxin Li;Xiaoyong He

{"title":"3D Dirac Semimetal Metamaterial Supported Terahertz Tunable Dual-Functional Polarization Converter","authors":"Shilin Liu;Wenhan Cao;Jiaxin Li;Xiaoyong He","doi":"10.1109/JSTQE.2025.3592331","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3592331","url":null,"abstract":"Currently, the use of metamaterials (MMs) to dynamically manipulate the polarization state of terahertz (THz) waves is of great interest for applications such as conveying information and target detection. However, it remains a key challenge to integrate tunable and multiple functions into a single MM device. Based on a 3D Dirac semimetal (DSM)-Teflon-graphene multilayered structure, the propagation performance of the dual-functional polarization converter (DPC) has been investigated in the THz regime, which can achieve cross-polarized reflection or transmission conveniently by adjusting the Fermi level of the graphene inserted into the dielectric space layer. Particularly, at a large Fermi level of 1.0 eV, the proposed DPC realizes a broadband cross-polarized reflection at 0.94-2.17 THz with polarization conversion ratio more than 0.9, and the maximum amplitude modulation depth (MD) of the cross-polarization resonance is 29.2% by adjusting the 3D DSM Fermi level in the range of 0.01-0.15 eV. Meanwhile, if the Fermi level is zero, two obvious cross-polarized transmission peaks can be observed at 1.14 THz and 1.92 THz, and the corresponding amplitude MDs are 49.0% and 62.6% respectively, by varying the 3D DSM Fermi level. Additionally, with a thin layer of 3D DSM as a tunable substrate, the maximum MD amplitude of the cross-polarized reflection curve reaches 52% by changing the Fermi level in the range of 0.01-0.15 eV. These results are very helpful in understanding the tunable mechanisms of 3D DSM plasmonic devices and aiding the design of THz multi-functional devices, such as polarizers, wave plates, and modulators.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-8"},"PeriodicalIF":5.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773228","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

Correlation of Hemodynamic Responses Measured on Human Head by Diffuse Correlation Spectroscopy and BOLD MRI 漫射相关光谱和BOLD MRI测量人头血流动力学反应的相关性

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-22 DOI: 10.1109/JSTQE.2025.3589169

Neda Mogharari;Michal Kacprzak;Kamil Lipinski;Adam Liebert;Stanislaw Wojtkiewicz

{"title":"Correlation of Hemodynamic Responses Measured on Human Head by Diffuse Correlation Spectroscopy and BOLD MRI","authors":"Neda Mogharari;Michal Kacprzak;Kamil Lipinski;Adam Liebert;Stanislaw Wojtkiewicz","doi":"10.1109/JSTQE.2025.3589169","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3589169","url":null,"abstract":"In this study, first we compared the performance of continuous wave diffuse correlation spectroscopy (cw-DCS) and time domain diffuse correlation spectroscopy (td-DCS) in assessing the dynamic of scatterers during series of measurements on two-layered phantoms. Then, we compared the blood flow index (BFI) measured by DCS techniques and evaluated its correlation with the blood oxygenation level–dependent (BOLD) signal measured by magnetic resonance imaging (MRI) during respiratory challenges, including breath-holding (BH) and hyperventilation (HV). We found a good agreement between the amplitude changes of BFIs and BOLD signal in response to BH and HV maneuvers. Moreover, we observed positive correlations between the BFIs and BOLD signal changes in response to these respiratory challenges. Notably, during BH, BFI changes preceded the BOLD signal (on average by about 2.7 s), while during HV, the responses were nearly simultaneous (delay about 0.2 s). These results support the potential of DCS techniques as a complementary tool in assessing cerebral hemodynamic. However, to make these optical techniques practically useful, further improvements in hardware—especially in coherence length and pulse width of the td-DCS laser source is necessary.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 4: Adv. in Neurophoton. for Non-Inv. Brain Mon.","pages":"1-15"},"PeriodicalIF":5.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11089953","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781887","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

High-Power Fiber Lasers for Free-Space Optical Communication Uplinks 用于自由空间光通信上行链路的大功率光纤激光器

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-18 DOI: 10.1109/JSTQE.2025.3590645

Jeffrey W. Nicholson;Andrew Grimes;Benyuan Zhu;Cang Jin;Venkatapuram S. Sudarshanam;Anand Hariharan;David J. DiGiovanni

{"title":"High-Power Fiber Lasers for Free-Space Optical Communication Uplinks","authors":"Jeffrey W. Nicholson;Andrew Grimes;Benyuan Zhu;Cang Jin;Venkatapuram S. Sudarshanam;Anand Hariharan;David J. DiGiovanni","doi":"10.1109/JSTQE.2025.3590645","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3590645","url":null,"abstract":"Ground to satellite optical uplinks are a critical part of the infrastructure in the growing satellite network using free-space optical communications. Because of distortions to the free space optical beam caused by scattering, absorption and turbulence in the atmosphere, the optical power requirements for the uplink are higher than other parts of the system. Fiber lasers are expected to be a key component in the uplink transmitter, due to their robust nature, ability to operate at high average power with excellent beam quality, and high efficiency. This work will provide a brief overview of considerations for optical ground stations, and review of potential fiber laser sources for free space optical communications systems. Detailed results will be presented on a very-large mode area Er-doped fiber amplifier, core pumped by a 1480 nm Raman fiber laser, capable of operating at 100 W average power. Bit error rate testing results for the system at operating powers of up to 90 W will be presented.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 1: Advances in Free Space Laser Communications","pages":"1-10"},"PeriodicalIF":5.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843118","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

On Error Rate Approximations for FSO Systems With Weak Turbulence and Pointing Errors 具有弱湍流和指向误差的FSO系统误差率逼近

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-17 DOI: 10.1109/JSTQE.2025.3590410

Carmen Álvarez Roa;Yunus Can Gültekin;Kaiquan Wu;Cornelis Willem Korevaar;Alex Alvarado

{"title":"On Error Rate Approximations for FSO Systems With Weak Turbulence and Pointing Errors","authors":"Carmen Álvarez Roa;Yunus Can Gültekin;Kaiquan Wu;Cornelis Willem Korevaar;Alex Alvarado","doi":"10.1109/JSTQE.2025.3590410","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3590410","url":null,"abstract":"Atmospheric attenuation, atmospheric turbulence, geometric spread, and pointing errors, degrade the performance of free-space optical transmission. In the weak turbulence regime, the probability density function describing the distribution of the channel fading coefficient that models these four effects is known in the literature. This function is an integral equation, which makes it difficult to find simple analytical expressions of important performance metrics such as the bit error rate (BER) and symbol error rate (SER). In this paper, we present simple and accurate approximations of the average BER and SER for pulse-amplitude modulation (PAM) in the weak turbulence regime for an intensity modulation and direct detection system. Our numerical results show that the proposed expressions exhibit excellent accuracy when compared against Monte Carlo simulations. To demonstrate the usefulness of the developed approximations, we perform two asymptotic analyses. First, we investigate the additional transmit power required to maintain the same SER when the spectral efficiency increases by 1 b/symbol. Second, we study the asymptotic behavior of our SER approximation for dense PAM constellations and high transmit power.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 1: Advances in Free Space Laser Communications","pages":"1-15"},"PeriodicalIF":5.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998205","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

Unpolarized Nonreciprocal Thermal Emitters Based on Generalized Transverse Magneto-Optical Effect 基于广义横向磁光效应的非极化非互易热辐射体

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-17 DOI: 10.1109/JSTQE.2025.3590100

Wentian Zhang;Zhenhao Li;Tianji Liu;Wei Li

{"title":"Unpolarized Nonreciprocal Thermal Emitters Based on Generalized Transverse Magneto-Optical Effect","authors":"Wentian Zhang;Zhenhao Li;Tianji Liu;Wei Li","doi":"10.1109/JSTQE.2025.3590100","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3590100","url":null,"abstract":"In optics and thermal photonics, reciprocity governs and constrains the transportation of light and thermal radiation. Transverse magneto-optical effect is the main mechanism to break reciprocity in propagation, reflection, absorption, and emission. However, it is well-recognized that transverse magneto-optical effect is only valid for transverse magnetic polarization, which is the fundamental constraint in realizing unpolarized or polarization-independent nonreciprocal photonics and thermal photonics. Although the recent reports demonstrate the dual-polarized nonreciprocal thermal emitters based on the rotated incident plane and multimode interaction, it is still unclear the general principle behind a myriad of magnetic configurations and microstructures. More importantly, current dual-polarized thermal emitters are still limited with the non-overlapping angular and spectral properties for both polarizations. In this paper, we reveal the transversal inhomogeneity and the transverse wave nature of light are the generation mechanism of dual-polarized nonreciprocity in arbitrary magneto-optical structures, which is the manifestation of the generalized transverse magneto-optical effect. Moreover, one-dimensional Weyl-semimetal materials-based grating is designed to demonstrate the strong and broadband nonreciprocal thermal radiation, exhibiting an enhanced nonreciprocal radiative heat transfer efficiency superior to the ideal single-polarized nonreciprocal thermal emitters. Our results pave the avenue to unpolarized nonreciprocal photonics and thermal photonics.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 6: Photon. for Climate Chng. Mitigation and Adapt.","pages":"1-8"},"PeriodicalIF":5.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11082672","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739807","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

Simultaneous Optical Measurement of Hemoglobin, Cerebral Blood Flow, and Cytochrome-C-Oxidase Changes Via Wavelength Time-Multiplexed Speckle Sensing 同时光学测量血红蛋白，脑血流和细胞色素c -氧化酶的变化，通过波长时间复用散斑传感

IF 5.1 2区工程技术

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-07-11 DOI: 10.1109/JSTQE.2025.3588298

Tamar Dror;Victoria Tarle;Georgina Leadley;Gemma Bale;Nisan Ozana

引用次数: 0

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