IEEE Journal of Selected Topics in Quantum Electronics最新文献

{"title":"Unified Vibrational and Multiphoton Label-Free Nonlinear Microscopy for Simultaneous Chemical and Structural Imaging.","authors":"Alejandro De la Cadena, Edita Aksamitiene, Stephen A Boppart","doi":"10.1109/jstqe.2025.3650148","DOIUrl":"10.1109/jstqe.2025.3650148","url":null,"abstract":"<p><p>Nonlinear microscopy enables label-free imaging by deriving contrast from the intrinsic spectroscopic responses of specimens, thereby offering a valuable tool for biomedical applications. Often, clinical imaging systems implement either multiphoton or vibrational contrast, not both. Consequently, most clinically deployed label-free nonlinear microscopes lack a robust, complementary contrast palette suitable for investigating the morphofunctional features of heterogeneous specimens. This deficiency limits not only the analytical capabilities of the nonlinear microscope but also its diagnostic utility. A main reason for this disregard is that the various imaging modalities impose distinct and stringent requirements on the excitation source and the detection chain. In this contribution, we propose a strategy that targets <i>both</i> multiphoton and vibrational contrasts to achieve a robust, complementary contrast palette. The approach emerges from a systematic investigation of readout schemes and provides engineering criteria to tailor the detection chain and thus maximize quantitative performance. In concert with this detection strategy, we present a compact laser source that drives vibrational coherences while simultaneously exciting multiphoton signals. We validate the resulting imaging platform using two rodent case studies: one involving a naturally occurring metastatic cancer in a mouse and another relying on an allogeneic mammary cancer model in a rat. Owing to its dimensions, cost, and versatility, we anticipate that this biophotonics tool will readily find its way into clinical applications.</p>","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12971071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147432616","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}

{"title":"Editorial Interview: Proliferating Free-Space Laser Communications for Space-Based Networks and Scientific Exploration","authors":"Bryan S. Robinson","doi":"10.1109/JSTQE.2026.3664943","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3664943","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 1: Advances in Free Space Laser Communications","pages":"1-2"},"PeriodicalIF":5.1,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11433117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440688","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}

{"title":"Editorial: Advances in Free-Space Laser Communications","authors":"Katia Shtyrkova;Farzana Khatri;Dimitar Kolev;Malcolm Wright","doi":"10.1109/JSTQE.2026.3663054","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3663054","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 1: Advances in Free Space Laser Communications","pages":"1-1"},"PeriodicalIF":5.1,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11425849","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440617","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}

{"title":"Editorial Interview: Scaling Photonic Integration: The Shift From 2.5D to True 3D","authors":"Adam Carter","doi":"10.1109/JSTQE.2026.3677516","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3677516","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 2: 3-D Horizons in Photonics: Integrated Circuits","pages":"1-3"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11481188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696666","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}

{"title":"3D-Printed Linear-Polarization Multiplexed Metasurface for Independent Terahertz Focusing and Orbital Angular Momentum Beam Generation","authors":"Dexian Yan;Ziwen Wang;Xiangjun Li;Le Zhang;Jining Li","doi":"10.1109/JSTQE.2026.3676207","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3676207","url":null,"abstract":"We propose and experimentally demonstrate a dual-linear-polarization multiplexed metasurface capable of independently generating point-focused and focused orbital angular momentum (OAM) terahertz beams at 140 GHz. The metasurface consists of polymer-based birefringent meta-atoms fabricated via high-resolution 3D printing, enabling full 0–2<inline-formula><tex-math>$pi$</tex-math></inline-formula> transmission phase control for both orthogonal polarizations through independent geometric parameter tuning. For y-polarized incidence, the device achieves a focal length of 82 mm with a high efficiency of 50.71%. For x-polarized incidence, it produces an focused OAM beam with a topological charge of <inline-formula><tex-math>$ell$</tex-math></inline-formula> = –2 and a focal length of 115 mm, maintaining an efficiency of 54.61%. The measured focal positions, beam profiles, and phase structures exhibit strong agreement with full-wave simulations, with only minor deviations attributed to fabrication and measurement constraints. Compared with previously reported designs, the proposed all-resin structure offers simplified fabrication, single-layer multifunctional implementation, and high phase-control accuracy. This work demonstrates a scalable and low-cost strategy for multifunctional terahertz beam shaping and multiplexing, with promising applications in terahertz imaging, communication, and sensing.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 3: Nanophotonics, Metamaterials and Plasmonics","pages":"1-11"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606219","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}

{"title":"Ultralow Prediction Error in SPR-Based PCF Sensor Using Kolmogorov–Arnold and Artificial Neural Networks","authors":"Jatin Rana;Rupam Srivastava;Vinit Kumar;Sarika Pal;Yogendra Kumar Prajapati","doi":"10.1109/JSTQE.2026.3669493","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3669493","url":null,"abstract":"This paper presents the application of machine learning (ML) techniques such as Kolmogorov-Arnold Networks (KAN) and Artificial Neural Networks (ANN) for predicting confinement loss (CL) in photonic crystal fiber (PCF) sensors based on the surface plasmon resonance (SPR) concept. A thin gold (Au) coating is incorporated into the PCF structure to induce plasmonic effects. Confinement loss is analyzed through simulations performed in COMSOL Multiphysics for analytes with refractive indices in the range of 1.30–1.40. In this study, a novel KAN model is introduced alongside a conventional ANN to predict confinement loss with significantly improved precision. The results demonstrate that the KAN model achieves superior predictive performance, yielding a mean absolute percentage error (MAPE) of 0.02193, compared to 0.04327 for the ANN and prior studies. Furthermore, the KAN model attains an outstanding coefficient of determination (<inline-formula><tex-math>$R^{2}$</tex-math></inline-formula> score) of 0.9996 and a remarkably low <inline-formula><tex-math>$R^{2}$</tex-math></inline-formula> score adjusted of 0.999, which indicate improved performance in ML-based PCF-SPR sensor design. This work thus provides an effective framework for developing high-performance PCF-SPR sensors using advanced ML algorithms, with promising applications in biosensing and chemical diagnostics.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 3: Nanophotonics, Metamaterials and Plasmonics","pages":"1-8"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557818","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}

{"title":"Uniform 2D Target Generation via Inverse-Designed Metasurfaces","authors":"Yushi Zhou;Yun-Sheng Chen;Yang Zhao","doi":"10.1109/JSTQE.2026.3675376","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3675376","url":null,"abstract":"We propose an inverse design framework for metasurfaces that achieves highly uniform two-dimensional intensity profiles across an on-demand shape. The optimization objective is formulated to enhance overall projection efficiency via the adjoint method, while a regularization term penalizes local deviations in field amplitude to suppress intensity non-uniformity. The regularization weight is adaptively tuned based on the current non-uniformity, enabling stable and efficient optimization. Compared with the widely used mean squared error (MSE) objective, our method yields superior performance in both intensity fidelity and uniformity. We also extend our framework to handle realistic Gaussian beam illumination by biasing the library. This framework utilizes the Finite Element Method (FEM) for surrogate modeling and full-wave Finite-Difference Time-Domain (FDTD) simulations for rigorous verification. Simulation results confirm the effectiveness of our approach for generating high-quality, uniform field patterns.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 3: Nanophotonics, Metamaterials and Plasmonics","pages":"1-8"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696189","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}

{"title":"Machine Learning Assists the Design of a W-Band Phase-Change Tunable Wire-Grid Periodic Resonant Broadband Absorber","authors":"Yiting Liu;Cheng Chen;Wei Zhang;Yuhang Wang;Jiaxuan Xue;Wu Zhao;Johan Stiens","doi":"10.1109/JSTQE.2026.3670043","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3670043","url":null,"abstract":"Millimeter-wave systems require absorbers with high absorption efficiency, broad bandwidth, and multi-functional tunability. However, existing devices based on composite structures and materials face design challenges: traditional methods hardly achieve all three indicators simultaneously, often sacrificing one performance for another, making “high absorption, broad bandwidth, multi-function” integration highly difficult. To overcome this fundamental trade-off, this study designs a W-band (75–110 GHz) composite absorber, integrating VO₂ and graphene, and combining periodic resonant structures with a backplane-free phase-change wire-grid architecture. When integrated into the periodic resonant structure, the VO₂ wire-grid provides thermal ‘on-off’ switching of absorption, whereas graphene offers electrical tunability—both achieved by modulating the effective surface conductivity and thus the impedance matching condition. Guided by an XGBoost-based closed-loop inverse design framework, the XGBoost model optimizes parameters, with convergence achieved after four closed-loop simulation iterations. Results show the VO₂ wire-grid absorber performs excellently at 90° incidence: it achieves near-perfect absorption (>99%) over a 21 GHz sub-band (82–103 GHz), showing an 80% improvement in average absorption compared to copper(Cu) backplanes, under identical unit-cell geometry and simulation conditions, with each configuration independently optimized for peak performance. Graphene provides a maximum modulation amplitude of depth of 68%. Innovations of this study include constructing a periodic resonant wire-grid structure that abandons traditional backplanes and uses wire-grids to expand loss areas, enabling dual-mode multi-physics control through co-integration of VO₂ and graphene, and establishing a machine learning closed-loop framework for parameter optimization. It explores a new paradigm for multi-functional tunable absorbers, providing high-performance solutions for MMW systems such as radar, communications, and biomedical imaging.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 3: Nanophotonics, Metamaterials and Plasmonics","pages":"1-17"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558025","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}

{"title":"Vanadium Dioxide Based Reconfigurable Janus Metasurface for Terahertz Full Space Wavefront Manipulation","authors":"Weiyu Luo;Fangrong Hu;Mo Yang;An Su;Mingzhu Jiang;Longhui Zhang;Zhongpeng Gao;Ying Chen","doi":"10.1109/JSTQE.2026.3679720","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3679720","url":null,"abstract":"Full space beam control can achieve precise orientation of signal energy in three-dimensional space, and has important application in radar systems and wireless communications. Here, we present a reconfigurable Janus metasurface based on the phase change material vanadium dioxide (VO₂), realizing bidirectional transmission and reflection at different temperatures. The meta-atom is composed of a three-layer metal-VO₂ composite structure and two dielectric layers. When the VO₂ is in the insulating state, the metasurface operates in transmission mode, enabling linear polarization conversion and independent beam control for terahertz (THz) waves incident from both forward and backward directions. When the VO₂ is in the metallic state, the metasurface switches to reflection mode, where linear polarization conversion and phase control of reflected waves are realized through the transmission-phase principle. Furthermore, by combining transmission-phase and geometric-phase mechanisms, decoupled control of circular polarization is achieved. By arrangement of these meta-atoms, we further designed a four-channel device capable of dynamically switching between the metalens and vortex beam generator. Meanwhile, a six-channel imaging device is constructed to produce distinct letter patterns under different operating modes. The results demonstrate that the proposed metasurface device achieves versatile multi-channel multiplexing. This work provides a new strategy for enhancing the multiplexing freedom of metasurface-based wavefront manipulation, with promising applications in THz rader, imaging, communications, and related fields.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 3: Nanophotonics, Metamaterials and Plasmonics","pages":"1-9"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696640","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}

{"title":"Editorial: 3-D Horizons in Photonics: Unraveling the Next Frontier of Integrated Circuits","authors":"Alex Yasha Yi;Colin Mcdonough;Xingjun Wang;James Foresi;Sarah Kurtz","doi":"10.1109/JSTQE.2026.3671037","DOIUrl":"https://doi.org/10.1109/JSTQE.2026.3671037","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"32 2: 3-D Horizons in Photonics: Integrated Circuits","pages":"1-1"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11454711","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557810","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}