Journal of Optics最新文献_第7页

Improving the perovskite solar cell by insertion of methyl ammonium tin oxide and cesium tin chloride as absorber layers: scaps 1d study based on experimental studies 通过插入甲基氧化锡铵和氯化铯锡作为吸收层来改进过氧化物太阳能电池：基于实验研究的 scaps 1d 研究

Journal of Optics Pub Date : 2024-07-02 DOI: 10.1007/s12596-024-01996-7

K. Dris, M. Benhaliliba, A. Ayeshamariam, A. Roy, K. Kaviyarasu

引用次数: 1

Towards subwavelength pixels: Nanophotonic color routers for ultra-compact high-efficiency CMOS image sensors 迈向亚波长像素：用于超小型高效 CMOS 图像传感器的纳米光子色彩路由器

Journal of Optics Pub Date : 2024-07-02 DOI: 10.1088/2040-8986/ad5dcc

Chan Y. Park, Sangbin Lee, Taeho Lee, Jiwon Kang, Jaehyun Jeon, Chaejin Park, Sanmun Kim, Haejun Chung, M. Jang

{"title":"Towards subwavelength pixels: Nanophotonic color routers for ultra-compact high-efficiency CMOS image sensors","authors":"Chan Y. Park, Sangbin Lee, Taeho Lee, Jiwon Kang, Jaehyun Jeon, Chaejin Park, Sanmun Kim, Haejun Chung, M. Jang","doi":"10.1088/2040-8986/ad5dcc","DOIUrl":"https://doi.org/10.1088/2040-8986/ad5dcc","url":null,"abstract":"\u0000 The proliferation of smartphones and the widespread use of camera modules necessitate CMOS image sensors with high pixel density. The recent competitive race to miniaturize pixels has enabled commercial CMOS sensors with submicron pixels to reach sizes as small as 0.5 μm. However, further downsizing towards subwavelength pixels faces fundamental challenges as the conventional focus-and-filter approach suffers from the diminishing focusing ability of conventional microlens arrays and optical efficiency constraints imposed by absorptive color filters. Nanophotonic color routers have emerged to overcome these challenges via efficient spatiospectral splitting, thereby directing incident light into corresponding pixels. In particular, recent developments in free-form device optimization methods enable the design of highly efficient color routers by exploring a large combinatorial design space, which was previously considered to be intractable with conventional design methods. In this review, we comprehensively introduce a multitude of research achievements in the field of nanophotonic color routers for CMOS image sensors with a special emphasis on their design methodologies.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":"27 29","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141684574","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

Dynamics of two degenerate three-level lasers oupled to vacuum reservoir 两个变性三电平激光器与真空贮槽的动态关系

Journal of Optics Pub Date : 2024-07-02 DOI: 10.1007/s12596-024-01997-6

Fekadu Tolessa, M. Alemu, Birke Alemu

引用次数: 0

Comparison of alternative gold nanoparticles (AuNPs) produced by laser ablation technique for photothermal therapy applications 比较激光烧蚀技术生产的用于光热疗法的替代金纳米粒子 (AuNPs)

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-01962-3

E. J. Khamees, O. Gençyılmaz

引用次数: 0

Experimental realization of optical communication link with intensity degenerate orbital angular momentum beams 用强度退化轨道角动量光束实验实现光通信链路

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-01984-x

Chayanika Sharma, P. Badavath, Vijay Kumar

引用次数: 0

Deciphering the sensory landscape: a comparative analysis of fiber Bragg grating and strain gauge systems in structural health monitoring 解密感知图景：光纤布拉格光栅和应变仪系统在结构健康监测中的比较分析

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-02001-x

M. A. Ibrar Jahan, Rajini Honnungar, V. L. Nandhini, V. L. Malini, Harpreet Vohra, V. R. Balaji, Sandip Kumar Royc

引用次数: 0

Optical dromions with fractional temporal evolution by enhanced modified tanh expansion approach 通过增强型修正 tanh 扩展方法实现具有分数时间演化的光学二romions

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-01979-8

Muhammad Amin S. Murad, Mujahid Iqbal, A. H. Arnous, A. Biswas, Y. Yıldırım, A. Alshomrani

引用次数: 0

Unveiling optical solitons in twin-core couplers with Kerr law of nonlinear refractive index using improved modified extended tanh function method 利用改进的修正扩展 tanh 函数法揭示具有非线性折射率克尔定律的双核耦合器中的光孤子

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-01971-2

Eman H. M. Abdullah, H. Ahmed, A. Zaghrout, Amal Ibrahim Ahmed Bahnasy, Wafaa B. Rabie

引用次数: 0

Optical and structural characteristics of carbon quantum dots manufacturing by electrochemical method 电化学方法制造的碳量子点的光学和结构特征

Journal of Optics Pub Date : 2024-07-01 DOI: 10.1007/s12596-024-02000-y

Nuha Salem Sultan, Omar Abdulsada Ali

引用次数: 0

Asymmetric multi-image encoding and hiding scheme with structured fingerprint phase masks using gyrator transform and phase-shifting digital holography 使用回旋器变换和移相数字全息技术的结构化指纹相位掩码非对称多图像编码和隐藏方案

Journal of Optics Pub Date : 2024-04-25 DOI: 10.1088/2040-8986/ad4373

Sonu Kumar Rao, N. Nishchal

{"title":"Asymmetric multi-image encoding and hiding scheme with structured fingerprint phase masks using gyrator transform and phase-shifting digital holography","authors":"Sonu Kumar Rao, N. Nishchal","doi":"10.1088/2040-8986/ad4373","DOIUrl":"https://doi.org/10.1088/2040-8986/ad4373","url":null,"abstract":"\u0000 We propose a novel technique for multi-image encryption and hiding scheme under optical asymmetric frame work using structured fingerprint phase masks in the gyrator transform domain and three-step phase-shifting digital holography. A structured fingerprint phase mask contains the unique features of fingerprint and structured phase of optical vortex beam, which provides higher security in the cryptosystem. In order to perform the encryption of multiple images, gyrator transform based phase truncation and phase reservation technique has been used in the first level of security whereas three step phase-shifting digital holography has been used to obtain the final ciphertext. This ciphertext is embedded in the host image to perform the watermarking process. In this process, the host is further decomposed into three parts in which anyone from the last two parts can be used for watermark embedding whereas first part is stored as key. The use of polar decomposition in the watermarking process provides additional layer for security. Numerical simulation and experimental results have been presented to support the proposed scheme.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":"5 35","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140654202","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