SPIE/COS Photonics Asia最新文献_第4页

Interface treatment by oxygen plasma for PEDOT:PSS/silicon hybrid solar cell 利用氧等离子体对 PEDOT:PSS 和硅混合太阳能电池进行界面处理

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2687028

Yi Yang, Dan Su, Tong Zhang

引用次数: 0

Practical issues in repetition-rate control of optical pulse trains and frequency combs by Talbot self-imaging 利用塔尔博特自成像技术控制光脉冲串和频率梳的重复率的实际问题

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2689197

Sheng-Qiang Geng, Yang He, Xiao-Zhou Li, Y. Gu, Mingshan Zhao

引用次数: 0

HTL doping density optimization for photovoltaic assessment of Pb-free Cs2NaGaBr6 n-i-p solar cell 用于无铅 Cs2NaGaBr6 ni-i-p 太阳能电池光伏评估的 HTL 掺杂密度优化

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2686546

Ajay Kumar, M. S. Thomas, Neha Gupta, Amit kumar Goyal, Yehia Massoud

引用次数: 0

Influence of flight time on aero-optical imaging quality degradation of the conformal dome 飞行时间对保形穹顶航空光学成像质量下降的影响

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2692144

Jiaqian Yu

引用次数: 0

Photonic assisted arbitrary microwave signal generation based on opto-electronic oscillator 基于光电子振荡器的光子辅助任意微波信号生成技术

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2687597

Md. Danish Nadeem, S. Raghuwanshi, Rajnish Raj, Ritesh Kumar, Fei Liu, Santosh Kumar

引用次数: 0

Nonlinear ray tracing to calculate the forces of an optical laser trap on a dielectric sphere 通过非线性射线追踪计算电介质球上的光学激光陷阱力

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2689210

Qin Yu, B. Hennelly

{"title":"Nonlinear ray tracing to calculate the forces of an optical laser trap on a dielectric sphere","authors":"Qin Yu, B. Hennelly","doi":"10.1117/12.2689210","DOIUrl":"https://doi.org/10.1117/12.2689210","url":null,"abstract":"Nonlinear rays are described by the eikonal function, which bridges the gap between wave and geometrical optics. These nonlinear rays follow a path that is always normal to the phase front as it propagates in space. In this paper, we explore how to augment the classical geometrical ray-optics approach to calculate the forces acting on the sphere in an optical trap developed by Ashkin, such that non-linear rays can replace linear rays in the calculation. The greatest advantage of such an approach would be be the capacity to model the orbital angular momentum imparted on the sphere using a Laguerre-Gaussian spatial mode laser. The non-linear rays associated with any convering wavefield can be traced towards their intersection point on the surface of the sphere and for each one of these ’rays’, the scattering force, gradient force, and torque can be derived using the Equations defined by Ashkin. Integration of these forces reveals the total three-dimensional force acting on the sphere as well as total rotational forces which can be decomposed into a ’vertical torque’ and ’horizontal torque.’ As well as investigating the single beam dielectric trap in the model of Ashkin, we additionally investigate the dual beam trap for all cases, which has the benefit of enhanced trapping forces.","PeriodicalId":149506,"journal":{"name":"SPIE/COS Photonics Asia","volume":"51 1","pages":"1276509 - 1276509-20"},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139222796","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

Gallium phosphide nanoantenna controls enhanced single-molecule fluorescence 磷化镓纳米天线控制增强型单分子荧光

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2689146

Yatao Yang, Yongxian Yan, Yifan Wang, Wei-Wei Cheng, Qiancheng Zhao, Yi Li

引用次数: 0

Development of radiant heat simulation system in extreme environment 开发极端环境下的辐射热模拟系统

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2687281

Bolun Zhang, Juan Ning, Jie Gong, Xiao Han, Linhua Yang

{"title":"Development of radiant heat simulation system in extreme environment","authors":"Bolun Zhang, Juan Ning, Jie Gong, Xiao Han, Linhua Yang","doi":"10.1117/12.2687281","DOIUrl":"https://doi.org/10.1117/12.2687281","url":null,"abstract":"According to the requirement of aircraft test mission, a set of radiant heat simulation system which can be used in complex extreme environment is developed in this paper. The system is mainly composed of optical subsystem, mechanical structure, cooling subsystem and control subsystem. The design process of this system mainly includes optical system design, mechanical structure design, cooling system design, control system design and environmental adaptability design. The radiant heat simulation system needs to ensure the normal operation under the extreme environment of low pressure (5kPa), high humidity (90%RH), high temperature (75°C) and low temperature (-20°C). In order to solve this difficulty, the system developed a special light source protection cabin. The protection chamber can provide normal temperature, normal pressure and low humidity working environment for the light source. With the help of cooling system and control system, the environment adaptability of radiant heat simulation system is ensured effectively. After the development of the radiant heat simulation system, six indexes including irradiance, spectrum, illumination area, irradiation uniformity, irradiation stability and environmental adaptability were evaluated according to the test standards. At present, the radiant heat simulation system has been involved in part of the aircraft test, the effect has been recognized by the test department.","PeriodicalId":149506,"journal":{"name":"SPIE/COS Photonics Asia","volume":"39 1","pages":"1276410 - 1276410-10"},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139216253","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

Modelling of all optical synchronous up-counter using microring resonator 利用微栅谐振器建立全光同步上位计数器模型

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2687583

Anjali Sharma, K. Choure, A. Saharia, N. Mudgal, M. Tiwari, Ghanshyam Singh, Santosh Kumar

{"title":"Modelling of all optical synchronous up-counter using microring resonator","authors":"Anjali Sharma, K. Choure, A. Saharia, N. Mudgal, M. Tiwari, Ghanshyam Singh, Santosh Kumar","doi":"10.1117/12.2687583","DOIUrl":"https://doi.org/10.1117/12.2687583","url":null,"abstract":"The current work proposes an optimized design for 2-bit synchronous up counter using silicon nitride on insulator optical microring resonators (MRRs). The research involves exploring the existing designs of up counter structures based on MRRs, and then minimizing the number of rings being used in the proposed model. The proposed design uses four MRRs for Synchronous up counter operation and the model has been validated through the MATLAB simulation result. The main component of the design is the MRR which can act as a switch depending upon the output at the drop port or the through port according to the MRR being in an on-resonance or off-resonance state respectively. The principle of the MRR is that on applying a vertical pump signal over the ring, the non-linear refractive index of the ring undergoes a temporary blue shift resulting due to π- phase shift in the ring, changing the resonant frequency of operation of the ring. The average pump power required for the blue shift can be obtained from the phase shift vs. the average pump power graph simulated in MATLAB. This shift in resonance frequency is employed to switching action for the signal to be output at the drop port or the through port of the MRR and based on the drive signal inputs of the present state and the clock to the rings in the resonator structure which act as pump signal over the ring, the next state of the counter is determined.","PeriodicalId":149506,"journal":{"name":"SPIE/COS Photonics Asia","volume":"58 1","pages":"127730G - 127730G-7"},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139216617","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

Substrate effects on surface activation processes of graphene/metal composite photocathodes 基底对石墨烯/金属复合光电阴极表面活化过程的影响

SPIE/COS Photonics Asia Pub Date : 2023-11-28 DOI: 10.1117/12.2687574

Song Tang, Yijun Zhang, G. Jiao, Feng Shi, Dongzhi Wang, Zehao Tong, Yu Jiang, Guanghui Hao

引用次数: 0