Opto-Electronic Science最新文献_第2页

Journal launch: Welcome Opto-Electronic Science 期刊发行:欢迎光电科学

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.e1

Xiangang Luo, Minghui Hong

引用次数: 0

Directional high-efficiency nanowire LEDs with reduced angular color shift for AR and VR displays 定向高效纳米线led与减少角度色移的AR和VR显示

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.220021

Yizhou Qian, Zhiyong Yang, Yu-Hsin Huang, Kuan Lin, Shin‐Tson Wu

引用次数: 12

Charge carrier dynamics in different crystal phases of CH3NH3PbI3 perovskite CH3NH3PbI3钙钛矿不同晶相的载流子动力学

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.210005

Efthymis Serpetzoglou, I. Konidakis, G. Kourmoulakis, I. Demeridou, Konstantinos Chatzimanolis, C. Zervos, G. Kioseoglou, E. Kymakis, E. Stratakis

{"title":"Charge carrier dynamics in different crystal phases of CH3NH3PbI3 perovskite","authors":"Efthymis Serpetzoglou, I. Konidakis, G. Kourmoulakis, I. Demeridou, Konstantinos Chatzimanolis, C. Zervos, G. Kioseoglou, E. Kymakis, E. Stratakis","doi":"10.29026/oes.2022.210005","DOIUrl":"https://doi.org/10.29026/oes.2022.210005","url":null,"abstract":"Despite that organic-inorganic lead halide perovskites have attracted enormous scientific attention for energy conversion applications over the recent years, the influence of temperature and the type of the employed hole transport layer (HTL) on the charge carrier dynamics and recombination processes in perovskite photovoltaic devices is still largely unexplored. In particular, significant knowledge is missing on how these crucial parameters for radiative and non-radiative re-combinations, as well as for efficient charge extraction vary among different perovskite crystalline phases that are induced by temperature variation. Herein, we perform micro photoluminescence (μPL) and ultrafast time resolved transient absorption spectroscopy (TAS) in Glass/Perovskite and two different Glass/ITO/HTL/Perovskite configurations at temperatures below room temperature, in order to probe the charge carrier dynamics of different perovskite crystalline phases, while considering also the effect of the employed HTL polymer. Namely, CH 3 NH 3 PbI 3 films were deposited on Glass, PEDOT:PSS and PTAA polymers, and the developed Glass/CH 3 NH 3 PbI 3 and Glass/ITO/HTL/CH 3 NH 3 PbI 3 architectures were studied from 85 K up to 215 K in order to explore the charge extraction dynamics of the CH 3 NH 3 PbI 3 orthorhombic and tetragonal crystalline phases. It is observed an unusual blueshift of the bandgap with temperature and the dual emission at temperature below of 100 K and also, that the charge carrier dynamics, as expressed by hole injection times and free carrier recombination rates, are strongly depended on the actual pervoskite crystal phase, as well as, from the selected hole transport material. al. Charge carrier dynamics in different crystal of CH","PeriodicalId":208845,"journal":{"name":"Opto-Electronic Science","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114712936","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: 5

Deep learning assisted variational Hilbert quantitative phase imaging 深度学习辅助变分希尔伯特定量相位成像

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2023.220023

Zhuoshi Li, Jiasong Sun, Yao Fan, Yanbo Jin, Qian Shen, M. Trusiak, Maria Cywińska, P. Gao, Qian Chen, C. Zuo

引用次数: 4

31.38 Gb/s GaN-based LED array visible light communication system enhanced with V-pit and sidewall quantum well structure v坑和侧壁量子阱结构增强的31.38 Gb/s gan基LED阵列可见光通信系统

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2023.230005

Zengyi Xu, Wenqing Niu, Yu Liu, Xianhao Lin, J. Cai, Jianyang Shi, Xiaolan Wang, Guangxu Wang, Jianli Zhang, F. Jiang, Zhixue He, Shaohua Yu, Chao Shen, Junwen Zhang, Nan Chi

引用次数: 0

Tracing the formation of oxygen vacancies at the conductive LaAlO3/SrTiO3 interface via photoemission 利用光电发射追踪导电LaAlO3/SrTiO3界面上氧空位的形成

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.210011

Junyan Chen, Tobias Eul, L. Lyu, Yaolong Li, Xiaoyong Hu, X. Ning, Shufang Wang, M. Aeschlimann, Q. Gong

引用次数: 3

Terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion 太赫兹超表面带板具有任意极化到固定极化的转换

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.210014

Zhen Yue, Jitao Li, Jie Li, Chenglong Zheng, Jingyu Liu, Guo-cui Wang, Hang Xu, Mingyang Chen, Yating Zhang, Yan Zhang, Jianquan Yao

{"title":"Terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion","authors":"Zhen Yue, Jitao Li, Jie Li, Chenglong Zheng, Jingyu Liu, Guo-cui Wang, Hang Xu, Mingyang Chen, Yating Zhang, Yan Zhang, Jianquan Yao","doi":"10.29026/oes.2022.210014","DOIUrl":"https://doi.org/10.29026/oes.2022.210014","url":null,"abstract":"Metasurfaces that can realize the polarization manipulation of electromagnetic waves on the sub-wavelength scale have become an emerging research field. Here, a novel strategy of combining the metasurface and Fresnel zone plate to form a metasurface zone plate is proposed to realize the conversion from nearly arbitrary polarizations to a fixed polarization. Specifically, when one polarized wave is incident on adjacent ring zones constructed by different types of meta-atoms, the transmitted waves generated by odd-numbered and even-numbered ring zones converge at the same focus and su-perimpose to generate a fixed polarized wave. As function demonstrations, we have designed two types of metasurface zone plates: one is a focused linear polarizer, and the other can convert nearly arbitrary polarized waves into focused circularly polarized waves. The simulated and measured results are consistent with theoretical expectations, suggesting that the proposed concept is flexible and feasible. Our work provides an alternative platform for polarization manipulation and may vigorously promote the development of polarization photonic devices. Terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion. Opto-Electron Sci 1 , 210014 (2022).","PeriodicalId":208845,"journal":{"name":"Opto-Electronic Science","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122849679","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: 26

Optical near-field imaging and nanostructuring by means of laser ablation 激光烧蚀的光学近场成像与纳米结构

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.210003

J. Boneberg, P. Leiderer

{"title":"Optical near-field imaging and nanostructuring by means of laser ablation","authors":"J. Boneberg, P. Leiderer","doi":"10.29026/oes.2022.210003","DOIUrl":"https://doi.org/10.29026/oes.2022.210003","url":null,"abstract":"In this review we consider the development of optical near-field imaging and nanostructuring by means of laser ablation since its early stages around the turn of the century. The interaction of short, intense laser pulses with nanoparticles on a surface leads to laterally tightly confined, strongly enhanced electromagnetic fields below and around the nano-objects, which can easily give rise to nanoablation. This effect can be exploited for structuring substrate surfaces on a length scale well below the diffraction limit, one to two orders smaller than the incident laser wavelength. We report on structure formation by the optical near field of both dielectric and metallic nano-objects, the latter allowing even stronger and more localized enhancement of the electromagnetic field due to the excitation of plasmon modes. Structuring with this method enables one to nanopattern large areas in a one-step parallel process with just one laser pulse irradiation, and in the course of time various improvements have been added to this technique, so that also more complex and even arbitrary structures can be produced by means of nanoablation. The near-field patterns generated on the surface can be read out with high resolution techniques like scanning electron microscopy and atomic force microscopy and provide thus a valu-able tool—in conjunction with numerical calculations like finite difference time domain (FDTD) simulations—for a deeper understanding of the optical and plasmonic properties of nanostructures and their applications.","PeriodicalId":208845,"journal":{"name":"Opto-Electronic Science","volume":"53 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132193059","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: 11

Photonic spin Hall effect: fundamentals and emergent applications 光子自旋霍尔效应:基本原理和紧急应用

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.220007

Shuoqing Liu, Shizhen Chen, S. Wen, Hailu Luo

{"title":"Photonic spin Hall effect: fundamentals and emergent applications","authors":"Shuoqing Liu, Shizhen Chen, S. Wen, Hailu Luo","doi":"10.29026/oes.2022.220007","DOIUrl":"https://doi.org/10.29026/oes.2022.220007","url":null,"abstract":"The photonic spin Hall effect (SHE) refers to the transverse spin separation of photons with opposite spin angular momentum, after the beam passes through an optical interface or inhomogeneous medium, manifested as the spin-depend-ent splitting. It can be considered as an analogue of the SHE in electronic systems: the light’s right-circularly polarized and left-circularly polarized components play the role of the spin-up and spin-down electrons, and the refractive index gradient replaces the electronic potential gradient. Remarkably, the photonic SHE originates from the spin-orbit interaction of the photons and is mainly attributed to two different geometric phases, i.e., the spin-redirection Rytov-Vlasimirskii-Berry in momentum space and the Pancharatnam-Berry phase in Stokes parameter space. The unique properties of the photonic SHE and its powerful ability to manipulate the photon spin, gradually, make it a useful tool in precision metrology, analog optical computing and quantum imaging, etc. In this review, we provide a brief framework to describe the fundamentals and advances of photonic SHE, and give an overview on the emergent applications of this phenomenon in different scenes.","PeriodicalId":208845,"journal":{"name":"Opto-Electronic Science","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130952729","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: 35

Towards integrated mode-division demultiplexing spectrometer by deep learning 基于深度学习的集成模分解复用光谱仪研究

Opto-Electronic Science Pub Date : 1900-01-01 DOI: 10.29026/oes.2022.220012

Ze-huan Zheng, Sheng-ke Zhu, Ying Chen, H. Chen, Jin‐hui Chen

引用次数: 6