Fourth International Conference on Applications of Optics and Photonics最新文献_第2页

Simulating particle influence on silicon nitride strip waveguide single-mode parameters 模拟粒子对氮化硅波导单模参数的影响

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2528122

M. Baumgart, J. Pribošek, Anton Buchberger, A. Singulani, A. Tortschanoff

引用次数: 4

Modification of multiphoton emission properties of single quantum dot due to the long-range coupling with plasmon nanoparticles in thin-film hybrid material 薄膜杂化材料中等离子体纳米粒子对单量子点多光子发射特性的远程耦合影响

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2530093

V. Krivenkov, P. Samokhvalov, A. Sánchez-Iglesias, M. Grzelczak, I. Nabiev, Y. Rakovich

引用次数: 0

Evaluation of the optical properties of two different types of soft contact lenses: hydrogel and silicone-hydrogel 两种不同类型的软性隐形眼镜:水凝胶和硅-水凝胶的光学性能评价

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527421

A. Ionescu, Andrea Talaveron López, J. C. Cardona, Sara Lopez Sierra, Ana Belen Rodríguez-Águila, Javier Ruiz-López, M. M. Pérez, R. Ghinea

引用次数: 0

Up/down link data transmission for indoor navigation based on visible light communication 基于可见光通信的室内导航上/下链路数据传输

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2526601

P. Louro, M. Vieira, M. Vieira

引用次数: 0

Temperature dependence of the drying process in polymer solutions observed by dynamic speckle detection 用动态斑点检测观察聚合物溶液干燥过程的温度依赖性

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527432

E. Stoykova, B. Blagoeva, L. Nedelchev, D. Nazarova

引用次数: 1

Spectral dependence of aerosol light absorption over Camagüey obtained from an integrating sphere spectral system 由积分球光谱系统获得的camag<s:1> ey上空气溶胶光吸收的光谱依赖性

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2526552

S. Mogo, B. Barja, V. Cachorro, A. Barroso, R. Monteiro, Á. Frutos, R. Estevan, J. Antuña

引用次数: 0

Atmospheric dispersion correction: model requirements and impact on radial velocity measurements 大气色散校正:模式要求和对径向速度测量的影响

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527256

B. Wehbe, A. Cabral, P. Figueira, G. Ávila

{"title":"Atmospheric dispersion correction: model requirements and impact on radial velocity measurements","authors":"B. Wehbe, A. Cabral, P. Figueira, G. Ávila","doi":"10.1117/12.2527256","DOIUrl":"https://doi.org/10.1117/12.2527256","url":null,"abstract":"Observations with ground-based telescopes are affected by differential atmospheric dispersion when seen at a zenith angle different from zero, a consequence of the wavelength-dependent index of refraction of the atmosphere. One of the pioneering technology in detecting exoplanets is the technique of radial velocity (RV), that can be affected by uncorrected atmospheric dispersion. The current highest precision spectrographs are expected to deliver a precision of 10 cm/s (e.g., ESPRESSO). To minimize the atmospheric dispersion effect, an Atmospheric Dispersion Corrector (ADC) can be employed. ADC designs are based on sky dispersion models that nonetheless give different results; these can reach a few tens of milli-arcseconds (mas) in the sky (a difference up to 40 mas); a value close to the current requirements (20 mas in the case of ESPRESSO). In this paper we describe tests done with ESPRESSO and HARPS to understand the influence of atmospheric dispersion and its correction on RV precision. We also present a comparison of different sky models, using EFOSC2 data (between 600nm and 700nm), that will be used to improve on the design of ADCs.","PeriodicalId":325279,"journal":{"name":"Fourth International Conference on Applications of Optics and Photonics","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126986814","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

GaN-based distributed feedback laser diodes for optical communications 光通信用氮化镓分布式反馈激光二极管

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527074

S. Gwyn, S. Watson, S. Viola, G. Giuliano, T. Slight, S. Stanczyk, S. Grzanka, A. Yadav, K. Docherty, E. Rafailov, P. Perlin, S. Najda, M. Leszczynski, A. Kelly

{"title":"GaN-based distributed feedback laser diodes for optical communications","authors":"S. Gwyn, S. Watson, S. Viola, G. Giuliano, T. Slight, S. Stanczyk, S. Grzanka, A. Yadav, K. Docherty, E. Rafailov, P. Perlin, S. Najda, M. Leszczynski, A. Kelly","doi":"10.1117/12.2527074","DOIUrl":"https://doi.org/10.1117/12.2527074","url":null,"abstract":"Over the past 20 years, research into Gallium Nitride (GaN) has evolved from LED lighting to Laser Diodes (LDs), with applications ranging from quantum to medical and into communications. Previously, off-the-shelf GaN LDs have been reported with a view on free space and underwater communications. However, there are applications where the ability to select a single emitted wavelength is highly desirable, namely in atomic clocks or in filtered free-space communications systems. To accomplish this, Distributed Feedback (DFB) geometries are utilised. Due to the complexity of overgrowth steps for buried gratings in III-Nitride material systems, GaN DFBs have a grating etched into the sidewall to ensure single mode operation, with wavelengths ranging from 405nm to 435nm achieved. The main motivation in developing these devices is for the cooling of strontium ions (Sr+ ) in atomic clock applications, but their feasibility for optical communications have also been investigated. Data transmission rates exceeding 1 Gbit/s have been observed in unfiltered systems, and work is currently ongoing to examine their viability for filtered communications. Ultimately, transmission through Wavelength Division Multiplexing (WDM) or Orthogonal Frequency Division Multiplexing (OFDM) is desired, to ensure that data is communicated more coherently and efficiently. We present results on the characterisation of GaN DFBs, and demonstrate their capability for use in filtered optical communications systems.","PeriodicalId":325279,"journal":{"name":"Fourth International Conference on Applications of Optics and Photonics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127808788","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: 4

Enhanced temperature sensing with Vernier effect on fiber probe based on multimode Fabry-Perot interferometer 基于多模法布里-珀罗干涉仪的光纤探头游标效应增强温度传感

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527399

André Gomes, M. Becker, J. Dellith, M. I. Zibaii, H. Latifi, M. Rothhardt, H. Bartelt, O. Frazão

引用次数: 0

Application of a novel LIBS prototype as an analytical grade tool for Li quantification in pegmatite samples 新型LIBS原型在伟晶岩样品中Li定量分析品位工具的应用

Fourth International Conference on Applications of Optics and Photonics Pub Date : 2019-10-03 DOI: 10.1117/12.2527978

Diana Guimarães, Miguel Ferreira, Ricardo Ribeiro, Catia Dias, Alexandre Lima, R. Martins, P. Jorge

引用次数: 2