2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)最新文献

Proposed resource allocation schemes for rainy free space optical network 提出了雨季自由空间光网络的资源分配方案

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-20 DOI: 10.5220/0005688400740081

Abdallah S. Ghazy, H. Selmy, H. Shalaby

{"title":"Proposed resource allocation schemes for rainy free space optical network","authors":"Abdallah S. Ghazy, H. Selmy, H. Shalaby","doi":"10.5220/0005688400740081","DOIUrl":"https://doi.org/10.5220/0005688400740081","url":null,"abstract":"Free space optical (FSO) connections present promising solution for the limited access issue of the last mile networks. However, several factors contribute to significant FSO link performance degradation. One of Most serious conditions is the influence of the rain, that frequently appear, thus making the implementation of strongly connected FSO networks a demanding issue. Dynamic FSO networks is attractive ones over the robust static ones, i.e, partial and full relayed networks, for this demanding issue. In this paper two new resource allocation Schemes are proposed for cooperative-dynamic FSO networks, as attractive solution for both atmospheric variation and high cost of robust static network problems. Each Scheme is formulated as integer linear multi-objective optimization problem (ILP-MOP), where reliability-fairness, capacity and bit-error rate functions are targeted. And each scheme is composed of lexicographic, lex-max-min and lex-min-max criteria. Each ILP-MOP is solved using exhaustive search method to obtain the guaranteed optimal solution(s). The simulation results is used to reveal that two schemes are more reliable-fairness and cost efficient than the robust static topology, specially at sever weather conditions. Also, the results show the two schemes have different behavior, where one prioritize the reliability-fairness over capacity utilization and the another does the opposite.","PeriodicalId":222009,"journal":{"name":"2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)","volume":"18 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122909783","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: 1

Waveguide evanescent field microscopies for application in cell- and bacteria-biophysics 波导倏逝场显微镜在细胞和细菌生物物理学中的应用

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-13 DOI: 10.5220/0005618302010212

S. Mittler

引用次数: 0

Analysis of brillouin frequency shift in distributed optical fiber sensor system for strain and temperature monitoring 应变和温度监测分布式光纤传感器系统布里渊频移分析

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-09 DOI: 10.5220/0005842803330340

Nageswara Lalam, Wai Pang Ng, X. Dai, Qiang Wu, Yongqing Fu

引用次数: 3

Design of amorphous silicon photonic crystal-based M-Z modulator operating at 1.55 μm 工作波长为1.55 μm的非晶硅光子晶体M-Z调制器的设计

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-09 DOI: 10.5220/0005745101620168

S. Rao, M. Casalino, G. Coppola, R. Kisacik, T. Tekin, F. D. Della Corte

引用次数: 0

Analysis of multicore fibre transmission with space coding scheme 基于空间编码的多芯光纤传输分析

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-09 DOI: 10.5220/0005718301020106

M. Tsubokawa

引用次数: 0

Dynamics of interacting Bragg grating solitons in a semilinear dual-core system with cubic-quintic nonlinearity 具有三次五次非线性的半线性双核系统中Bragg光栅孤子相互作用的动力学

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-08 DOI: 10.5220/0005651502270230

Md Jahirul Islam, J. Atai

引用次数: 0

Enhancing the performance of random lasers: Effects of localised surface plasmons and resonance energy transfer 增强随机激光器的性能:局域表面等离子体和共振能量转移的影响

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-07 DOI: 10.5220/0005744001580161

J. Dawes, W. Z. W. Ismail, E. Goldys, D. Coutts

引用次数: 1

Spectral and lifetime measurements of the endogenous fluorescence variation of freshly resected human samples over time: Measuring endogenous fluorescence changes at different moment after tumor or epileptic cortex excision 新切除的人类样本内源性荧光随时间变化的光谱和寿命测量:测量肿瘤或癫痫性皮层切除后不同时刻的内源性荧光变化

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-06 DOI: 10.5220/0005654900130017

M. Zanello, A. Ibrahim, F. Poulon, P. Varlet, B. Devaux, D. A. Haidar

{"title":"Spectral and lifetime measurements of the endogenous fluorescence variation of freshly resected human samples over time: Measuring endogenous fluorescence changes at different moment after tumor or epileptic cortex excision","authors":"M. Zanello, A. Ibrahim, F. Poulon, P. Varlet, B. Devaux, D. A. Haidar","doi":"10.5220/0005654900130017","DOIUrl":"https://doi.org/10.5220/0005654900130017","url":null,"abstract":"Analysis of human tissue endogenous fluorescence is becoming a new modality of medical imaging. Its capacities represent the missing link between macroscopic radiological tools such as MRI and CT-scan and the surgeon view during surgical procedures. However, numerous aspects of this signal are not well known. Time dependence is one of these aspects. The aim of this work is to investigate the autofluorescence changes with time. Five ex vivo human samples were studied. Spectral and lifetime measurements were acquired each hour. Fluorescence intensity decreased slightly with time. This decrease existed for healthy and tumoral samples and did not affect the differences between them: higher fluorescence intensity for control samples compared to tumor samples. Lifetime values showed a slight decrease too for both type of tissue. This work is the first report of fresh human brain samples multimodal autofluorescence analysis with time.","PeriodicalId":222009,"journal":{"name":"2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130826275","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: 3

A concept of ultraviolet lithography system and design of its rear part using artificial intelligence for starting design 提出了一种紫外光刻系统的概念，并对其后部进行了人工智能启动设计

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-05 DOI: 10.5220/0005688500820086

I. Livshits, N. Zoric

引用次数: 4

A method to improve the precision of interferometric phase-recognization under open-loop PZT drive 一种提高开环PZT驱动下干涉相位识别精度的方法

2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2016-12-02 DOI: 10.5220/0005737701230129

Liangen Yang, Xuanze Wang, B. Liu, Zhongsheng Zhai, Tao He

{"title":"A method to improve the precision of interferometric phase-recognization under open-loop PZT drive","authors":"Liangen Yang, Xuanze Wang, B. Liu, Zhongsheng Zhai, Tao He","doi":"10.5220/0005737701230129","DOIUrl":"https://doi.org/10.5220/0005737701230129","url":null,"abstract":"For the monochromatic light interferometry under open-loop PZT drive, a high precision method for phase recognization that satisfies the four steps phase-shift algorithm is proposed. The total idea of the phase recognization method is as follows. Firstly, two pixels with suitable phase-difference are selected from the interference field and the interference equations of the two pixels' gray values are established in one driven cycle of PZT. Secondly, the parameters of interference equations can be obtained by using ellipse fitting algorithm. Thirdly, the point-to-point step length of PZT drive and sequence phases can be determined through reverse calculation of sequence phases. Finally, in order to calculate initial phase of every pixels four interference grayscale images that meet the four steps phase-shift algorithm are designed and calculated through Lagrange parabolic interpolation. The experimental results have shown that this method decreases the requirement for hardware, environment and needs less interference grayscale images than traditional methods. The method can meet the high precision demands of surface topography measurement and has high processing speed.","PeriodicalId":222009,"journal":{"name":"2016 4th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115221311","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: 2