Photonics最新文献_第2页

Far-Field Super-Resolution Microscopy Using Evanescent Illumination: A Review 使用 Evanescent 照明的远场超分辨率显微镜：综述

Photonics Pub Date : 2024-06-01 DOI: 10.3390/photonics11060528

Qianwei Zhang, Haonan Zhang, Xiaoyu Yang, Xu Liu, Mingwei Tang, Qing Yang

引用次数: 0

A Terahertz Programmable Digital Metasurface Based on Vanadium Dioxide 基于二氧化钒的太赫兹可编程数字元表面

Photonics Pub Date : 2024-06-01 DOI: 10.3390/photonics11060527

Tianrui Pan, Chenxi Liu, Shuang Peng, Haiying Lu, Han Zhang, Xiaoming Xu, Fei Yang

{"title":"A Terahertz Programmable Digital Metasurface Based on Vanadium Dioxide","authors":"Tianrui Pan, Chenxi Liu, Shuang Peng, Haiying Lu, Han Zhang, Xiaoming Xu, Fei Yang","doi":"10.3390/photonics11060527","DOIUrl":"https://doi.org/10.3390/photonics11060527","url":null,"abstract":"Metasurfaces can realize the flexible manipulation of electromagnetic waves, which have the advantages of a low profile and low loss. In particular, the coding metasurface can flexibly manipulate electromagnetic waves through controllable sequence encoding of the coding units to achieve different functions. In this paper, a three−layer active coding metasurface is designed based on vanadium dioxide (VO2), which has an excellent phase transition. For the designed unit cell, the top patterned layer is composed of two split square resonant rings (SSRRs), whose gaps are in opposite directions, and each SSRR is composed of gold and VO2. When VO2 changes from the dielectric state to the metal state, the resonant mode changes from microstrip resonance to LC resonance, correspondingly. According to the Pancharatnam−Berry (P−B) phase, the designed metasurface can actively control terahertz circularly polarized waves in the near field. The metasurface can manipulate the order of the generated orbital angular momentum (OAM) beams: when the dielectric VO2 changes to metal VO2, the order l of the OAM beams generated by the metasurface changes from −1 to −2, and the purity of the generated OAM beams is relatively high. It is expected to have important application values in terahertz wireless communication, radar, and other fields.","PeriodicalId":503623,"journal":{"name":"Photonics","volume":"38 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141274122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shallow Trench Isolation Patterning to Improve Photon Detection Probability of Single-Photon Avalanche Diodes Integrated in FD-SOI CMOS Technology 浅沟槽隔离图案化提高在 FD-SOI CMOS 技术中集成的单光子雪崩二极管的光子探测概率

Photonics Pub Date : 2024-06-01 DOI: 10.3390/photonics11060526

Shaochen Gao, Duc-Tung Vu, Thibauld Cazimajou, Patrick Pittet, Martine Le Berre, Mohammadreza Dolatpoor Lakeh, F. Mandorlo, Régis Orobtchouk, J. Schell, Jean-Baptiste Kammerer, Andreia Cathelin, D. Golanski, Wilfried Uhring, F. Calmon

引用次数: 0

Manchester Return-to-Zero On–Off Keying Modulation for Free-Space Optical Communication 用于自由空间光通信的曼彻斯特归零开-关键控调制

Photonics Pub Date : 2024-05-24 DOI: 10.3390/photonics11060496

Wenhao Zong, Qianwen Jing, Minfang Liu, Yan Gao, Yanqing Hong

引用次数: 0

Simulation Study of Localized, Multi-Directional Continuous Dynamic Tailoring for Optical Skyrmions 光学天幕的局部多方向连续动态裁剪模拟研究

Photonics Pub Date : 2024-05-24 DOI: 10.3390/photonics11060499

Gao Tang, Chunyan Bai, Yuxing Zhang, Zhening Zhao, Dawei Zhang

{"title":"Simulation Study of Localized, Multi-Directional Continuous Dynamic Tailoring for Optical Skyrmions","authors":"Gao Tang, Chunyan Bai, Yuxing Zhang, Zhening Zhao, Dawei Zhang","doi":"10.3390/photonics11060499","DOIUrl":"https://doi.org/10.3390/photonics11060499","url":null,"abstract":"The topological properties of optical skyrmions have enormous application value in fields such as optical communication and polarization sensing. At present, research on optical skyrmions focuses primarily on the topological principles of skyrmions and their applications. Nonetheless, extant research devoted to skyrmion-array manipulation remains meager. The sole manipulation scheme has a limited effect on the movement direction of the whole skyrmion array. Based on the interference principle of the surface plasmon polariton (SPP) wave, we propose an upgraded scheme for the tailoring of electric-field optical skyrmions. A distributed Gaussian-focused spots array is deployed. Unlike the existing manipulation, we customize the phase of the light source to be more flexible, and we have discovered optical-skyrmion tailoring channels and shaping channels. Specifically, we move the skyrmions within the channel in both directions and manipulate the shape of the topological domain walls to achieve customized transformation. This work will evolve towards a more flexible regulatory plan for tailoring optical-skyrmion arrays, and this is of great significance for research in fields such as optical storage and super-resolution microimaging.","PeriodicalId":503623,"journal":{"name":"Photonics","volume":"43 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tunable Near-Infrared Transparent Bands Based on Cascaded Fabry–Perot Cavities Containing Phase Change Materials 基于包含相变材料的级联法布里-珀罗空腔的可调谐近红外透明带

Photonics Pub Date : 2024-05-24 DOI: 10.3390/photonics11060497

Yuchun She, Kaichan Zhong, Manni Tu, Shuyuan Xiao, Zhanxu Chen, Yuehua An, Dejun Liu, Feng Wu

{"title":"Tunable Near-Infrared Transparent Bands Based on Cascaded Fabry–Perot Cavities Containing Phase Change Materials","authors":"Yuchun She, Kaichan Zhong, Manni Tu, Shuyuan Xiao, Zhanxu Chen, Yuehua An, Dejun Liu, Feng Wu","doi":"10.3390/photonics11060497","DOIUrl":"https://doi.org/10.3390/photonics11060497","url":null,"abstract":"In this paper, we construct a near-infrared Fabry–Perot cavity composed of two sodium (Na) layers and an antimony trisulfide (Sb2S3) layer. By cascading two Fabry–Perot cavities, the transmittance peak splits into two transmittance peaks due to the coupling between two Fabry–Perot modes. We utilize a coupled oscillator model to describe the mode coupling and obtain a Rabi splitting of 60.0 meV. By cascading four Fabry–Perot cavities, the transmittance peak splits into four transmittance peaks, leading to a near-infrared transparent band. The near-infrared transparent band can be flexibly tuned by the crystalline fraction of the Sb2S3 layers. In addition, the effects of the layer thickness and incident angle on the near-infrared transparent band and the mode coupling are investigated. As the thickness of the Na layer increases, the coupling strength between the Fabry–Perot modes becomes weaker, leading to a narrower transparent band. As the thickness of the Sb2S3 layer increases, the round-trip propagating of the Sb2S3 layer increases, leading to the redshift of the transparent band. As the incident angle increases, the round-trip propagating of the Sb2S3 layer decreases, leading to the blueshift of the transparent band. This work not only provides a viable route to achieving tunable near-infrared transparent bands, but also possesses potential applications in high-performance display, filtering, and sensing.","PeriodicalId":503623,"journal":{"name":"Photonics","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141100659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Analysis of Six Electro-Optical Crystals in a High-Bandwidth Traveling Wave Mach-Zehnder Light Modulator 高带宽行波马赫-泽恩德光调制器中六颗电光晶体的性能分析

Photonics Pub Date : 2024-05-24 DOI: 10.3390/photonics11060498

Abtin Ataei, Paul McManamon, Andrew Sarangan

引用次数: 0

Camera-Based Safety System for Optical Wireless Power Transmission Using Dynamic Safety-Distance 使用动态安全距离的基于摄像头的光学无线电力传输安全系统

Photonics Pub Date : 2024-05-24 DOI: 10.3390/photonics11060500

Chen Zuo, Tomoyuki Miyamoto

{"title":"Camera-Based Safety System for Optical Wireless Power Transmission Using Dynamic Safety-Distance","authors":"Chen Zuo, Tomoyuki Miyamoto","doi":"10.3390/photonics11060500","DOIUrl":"https://doi.org/10.3390/photonics11060500","url":null,"abstract":"This paper introduces a new safety approach for Optical Wireless Power Transmission (OWPT), a technology that is integral to the new kinds of Wireless Power Transmission technology (WPT). It starts from the fundamental configuration of the current OWPT system, addressing the safety concerns related to lasers by involving laser irradiation hazards, laser exposure regulation and guidelines, and a comparison with other safety methods. A camera-based OWPT safety system focused on the emission control of the light source is proposed, and it utilizes a depth camera and finely tuned computer vision-based control program. Through meticulous system design and experiments, the proposed system can detect moving objects in a limited indoor environment and control the laser/LED light transmission according to the object’s velocity dynamically. Various functions and exclusive improvements towards OWPT operation are mentioned, and Dynamic Safety-Distance is proposed as the core mechanism of the safety system. Through on-site experiments, indoor safety control and system operation’s evaluation are discussed, acknowledging both the advantages and limitations of the proposed safety system. This paper concludes with suggestions for further developments in camera-based OWPT safety incorporating the concept of Automatic Emission Control.","PeriodicalId":503623,"journal":{"name":"Photonics","volume":"25 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Review of Optical Parametric Amplification at the Vulcan Laser Facility 火神激光设施的光参量放大技术回顾

Photonics Pub Date : 2024-05-23 DOI: 10.3390/photonics11060495

Samuel Buck, Pedro Oliveira, Theodoros Angelides, Marco Galimberti

引用次数: 0

Integrated Photonic Passive Building Blocks on Silicon-On-Insulator Platform 硅绝缘体平台上的集成光子无源构件

Photonics Pub Date : 2024-05-23 DOI: 10.3390/photonics11060494

Francesco Amanti, Greta Andrini, Fabrizio Armani, Fabrizio Barbato, Vittorio Bellani, Vincenzo Bonaiuto, Simone Cammarata, Matteo Campostrini, Thu Ha Dao, Fabio De Matteis, Valeria Demontis, Simone Donati, Giovanni Di Giuseppe, Sviatoslav Ditalia Tchernij, Andrea Fontana, Jacopo Forneris, Luca Frontini, R. Gunnella, Simone Iadanza, A. Kaplan, Cosimo Lacava, Valentino Liberali, Leonardo Martini, Francesco Marzioni, Luca Morescalchi, Elena Pedreschi, Paolo Piergentili, D. Prete, Valentino Rigato, Carlo Roncolato, Francesco Rossella, M. Salvato, Fausto Sargeni, J. Shojaii, Franco Spinella, A. Stabile, Alessandra Toncelli, Valerio Vitali

{"title":"Integrated Photonic Passive Building Blocks on Silicon-On-Insulator Platform","authors":"Francesco Amanti, Greta Andrini, Fabrizio Armani, Fabrizio Barbato, Vittorio Bellani, Vincenzo Bonaiuto, Simone Cammarata, Matteo Campostrini, Thu Ha Dao, Fabio De Matteis, Valeria Demontis, Simone Donati, Giovanni Di Giuseppe, Sviatoslav Ditalia Tchernij, Andrea Fontana, Jacopo Forneris, Luca Frontini, R. Gunnella, Simone Iadanza, A. Kaplan, Cosimo Lacava, Valentino Liberali, Leonardo Martini, Francesco Marzioni, Luca Morescalchi, Elena Pedreschi, Paolo Piergentili, D. Prete, Valentino Rigato, Carlo Roncolato, Francesco Rossella, M. Salvato, Fausto Sargeni, J. Shojaii, Franco Spinella, A. Stabile, Alessandra Toncelli, Valerio Vitali","doi":"10.3390/photonics11060494","DOIUrl":"https://doi.org/10.3390/photonics11060494","url":null,"abstract":"Integrated photonics on Silicon-On-Insulator (SOI) substrates is a well developed research field that has already significantly impacted various fields, such as quantum computing, micro sensing devices, biosensing, and high-rate communications. Although quite complex circuits can be made with such technology, everything is based on a few ’building blocks’ which are then combined to form more complex circuits. This review article provides a detailed examination of the state of the art of integrated photonic building blocks focusing on passive elements, covering fundamental principles and design methodologies. Key components discussed include waveguides, fiber-to-chip couplers, edges and gratings, phase shifters, splitters and switches (including y-branch, MMI, and directional couplers), as well as subwavelength grating structures and ring resonators. Additionally, this review addresses challenges and future prospects in advancing integrated photonic circuits on SOI platforms, focusing on scalability, power efficiency, and fabrication issues. The objective of this review is to equip researchers and engineers in the field with a comprehensive understanding of the current landscape and future trajectories of integrated photonic components on SOI substrates with a 220 nm thick device layer of intrinsic silicon.","PeriodicalId":503623,"journal":{"name":"Photonics","volume":"27 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141107210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0