2007 ICTON Mediterranean Winter Conference最新文献_第8页

New routes for exploiting the optical properties of artificial opals 探索人造蛋白石光学性质的新途径

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446934

J. Galisteo‐López

{"title":"New routes for exploiting the optical properties of artificial opals","authors":"J. Galisteo‐López","doi":"10.1109/ICTONMW.2007.4446934","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446934","url":null,"abstract":"Summary form only given. Artificial opals are nowadays acknowledged as ideal playgrounds where the optical properties of three dimensional (3D) photonic crystals can be tested. Over the past few years several works have demonstrated that a strong enhancement of the interaction between light and matter can be achieved with these systems. These type of nano-structured materials tend to grow in an FCC lattice with the (111) planes parallel to the sample surface. This characteristic fact imposes some restrictions on their dispersion relation (and hence on its optical properties) which are usually compensated for by introducing modifications in their topology by infiltrating them with high refractive index materials or introducing controlled defects. In this work we present recent results regarding the optical characterization of artificial opals containing planar defects as well as opals oriented along crystallographic directions other than the (111). The amplitude and phase of light transmitted through the samples is measured providing us with valuable information regarding the way light propagates in these structures. Our results evidence that besides the well known response in the surroundings of the stop-band, these structures can exhibit much more exciting properties such as superluminal propagation with negative group velocities.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131417467","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

Left handed photonic band gap materials: An issue in transparent optical networks 左手光子带隙材料:透明光网络中的一个问题

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446941

H. Aourag

引用次数: 0

Pseudo-potential calculations of the electronic and optical properties of GaxAlyIn1–x–yAs gasalyin1 - x - yas的电子和光学性质的赝势计算

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446971

A. Louhadj, H. Barhoumi, H. Abid

引用次数: 0

Two-dimensional photonic crystals in lithium niobate (LiNbO3) 铌酸锂的二维光子晶体

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446928

W. Fourati, R. Attia, M. Ammar

引用次数: 1

Optimization of MMI-WDM demultiplexer by using BPM method 基于BPM方法的mimi - wdm解复用器优化

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446951

S. Triki, M. Najjar, H. Rezig

引用次数: 2

Integrated optical sensor for environment monitoring 用于环境监测的集成光学传感器

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446937

M. Bozzetti, G. Calò, A. D’orazio, M. De Sario, L. Mescia, V. Petruzzelli, F. Prudenzano

{"title":"Integrated optical sensor for environment monitoring","authors":"M. Bozzetti, G. Calò, A. D’orazio, M. De Sario, L. Mescia, V. Petruzzelli, F. Prudenzano","doi":"10.1109/ICTONMW.2007.4446937","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446937","url":null,"abstract":"A brief overview on integrated optical sensors for environment monitoring is given. A variety of optical transducers is illustrated and the interaction between the evanescent electromagnetic field and the polluted medium under detection is described in detail. A chemically selective layer on the waveguide core binds and/or absorb the polluting molecules contained in the liquid or gaseous sample. The variation of the real and/or the imaginary part of the sensitive layer refractive index affects the penetration depth of the evanescent field of the core guided waves. Many sensor, based on this principle, configurations have been developed for chemical and biochemical applications. As an example, in this review the main numerical results pertaining to integrated optical sensors for hydrocarbon detection in water are illustrated. Various kind of planar waveguide sensors are designed by considering a polydimethylsiloxane (PDMS) polymeric overlay. The waveguide cross-section is refined to enhance the evanescent optical field, which interacts with the surrounding polymeric overlay and effects the waveguide sensor performance. The sensor based on this approach detects changes in the waveguide attenuation constant induced by the penetration of the hydrocarbons into the PDMS. The obtained results show that the proposed sensors could represent good candidates in terms of detection sensitivity and, in addition, to identify different analytes mixed in water solution. .","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128927771","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

The temperature dependence of photoluminescence and absorption spectra of MPc (M = Zn, Co, Mg, Cu) thin films MPc (M = Zn, Co, Mg, Cu)薄膜的光致发光和吸收光谱的温度依赖性

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446917

M. Wojdyla, M. Rebarz, B. Derkowska, W. Bala, Z. Essaidi, M. Bakasse

引用次数: 0

Effect of polymer host on third order nonlinear optical properties of newly synthesized organic liquid crystal 聚合物基质对新合成有机液晶三阶非线性光学性质的影响

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-12-01 DOI: 10.1109/ICTONMW.2007.4446920

S. Shettigar, G. Umesh, P. Poornesh, Y. Murthy*

引用次数: 1

Survivable wavelength-routed optical network design using genetic algorithms 基于遗传算法的可生存波长路由光网络设计

2007 ICTON Mediterranean Winter Conference Pub Date : 2007-11-20 DOI: 10.1109/ICTONMW.2007.4446904

M. Leeson, Y. Kavian, W. Ren, E. Hines, M. Naderi

引用次数: 11

Nonlinear optical properties of some Au nanostructures 一些金纳米结构的非线性光学性质

2007 ICTON Mediterranean Winter Conference Pub Date : 1900-01-01 DOI: 10.1109/ictonmw.2007.4446909

S. Couris

引用次数: 0