2008 2nd ICTON Mediterranean Winter最新文献_第6页

Third order nonlinear optical properties of phenylazo-azulene derivatives investigated by DFWM technique 用DFWM技术研究了苯并偶氮衍生物的三阶非线性光学性质

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773095

Z. Essaidi, E. Ungureanu, A. Meghea, A. Razus, L. Bîrzan, O. Krupka, B. Sahraoui

{"title":"Third order nonlinear optical properties of phenylazo-azulene derivatives investigated by DFWM technique","authors":"Z. Essaidi, E. Ungureanu, A. Meghea, A. Razus, L. Bîrzan, O. Krupka, B. Sahraoui","doi":"10.1109/ICTONMW.2008.4773095","DOIUrl":"https://doi.org/10.1109/ICTONMW.2008.4773095","url":null,"abstract":"Organic nonlinear optical (NLO) materials are promising candidates for development of modern technology. Combining molecular engineering and knowledge of materials sciences leads to synthesis of attractive and efficient classes of molecules that can be applied in a wide range of applications such as optoelectronic, photonic devices. For applications in nonlinear optical field, it is established that highly conjugated molecules with push-pull character leads to large nonlinearities. A number of family molecules such carbazole, azulene and so on have been synthesized in this way. We discuss in the present work cubic nonlinear optical properties of three phenylazo-azulene derivatives namely 4-hydroxylphenylazo-1-azulene, 4-aminophenylazo-1-guaiazulene and 4-acetylaminophenylazo-1-azulene. In these structures, azulene fragment acts as donor group, azo and phenyl moieties constitute a pi-conjugated bridge and acceptor character is given by different groups. The compounds were dissolved in tetrahydrofuran (THF) and their third order nonlinear optical activity investigated and determined through degenerate four wave mixing (DFWM) technique working at 532 nm wavelength in picosecond regime. Calculated susceptibility chi(3) values are compared to those of others known NLO materials reported in literature.","PeriodicalId":298995,"journal":{"name":"2008 2nd ICTON Mediterranean Winter","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132432402","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

Effect of the substitution of calcium by potassium on the dielectric properties in La0.7Ca0.3−xKxMnO3 compounds 钾取代钙对La0.7Ca0.3−xKxMnO3化合物介电性能的影响

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773109

R. Dhahri, M. Hajlaoui, M. Bejar, L. Costa, E. Hlil, E. Dhahri

引用次数: 1

Characterization of the semiconductor optical amplifier for amplification and photonic switching employing the segmentation model 用分割模型表征用于放大和光子开关的半导体光放大器

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773070

A. E. El Aziz, W. P. Ng, Zabih Ghassemlooy, M. Aly, R. Ngah, M. Chiang

引用次数: 6

Non-Markovian master equation for the XX central spin model XX中心自旋模型的非马尔可夫主方程

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773079

E. Ferraro, H. Breuer, A. Napoli, M. Guccione, A. Messina

引用次数: 1

Security in all-optical networks: Failure and attack avoidance using self-organization 全光网络中的安全:利用自组织避免故障和攻击

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773124

G. Castañón, I. Razo-Zapata, C. Mex, R. Ramirez-Velarde, O. Tonguz

{"title":"Security in all-optical networks: Failure and attack avoidance using self-organization","authors":"G. Castañón, I. Razo-Zapata, C. Mex, R. Ramirez-Velarde, O. Tonguz","doi":"10.1109/ICTONMW.2008.4773124","DOIUrl":"https://doi.org/10.1109/ICTONMW.2008.4773124","url":null,"abstract":"While transparent optical networks become more and more popular as the basis of the Next Generation Internet (NGI) infrastructure, such networks raise many security issues, which do not exist in traditional optoelectronic networks. The existing protection schemes which rely heavily on fault detection due to the use of network monitoring performed by the use of optoelectronic conversion at the switching nodes, is not sufficient to provide security assurance for all optical networks which lack the massive use of optoelectronic monitoring and require timely protection from malicious sabotage as well as inadvertent faults. In order to increase the security of future networks, them will need to use reactive mechanisms and self-organize through multipath routing (MPR) to protect themselves from potential failures caused by malicious new attacks and ordinary reliability problems. If we make the analogy to the human immunization systempsilas primary defense mechanism, MPR will act as the primary defense mechanism reacting timely to network problems and evolving based on network information. In this paper we are proposing the use MPR as an instinct immediate network reaction to failures and attacks in transparent networks; after the nodes transmit the data and causes of failure are classified, better self organized decisions can be used based on changing routing output priorities to reach destination.","PeriodicalId":298995,"journal":{"name":"2008 2nd ICTON Mediterranean Winter","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132520227","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: 15

Vibrational and thermal properties of poly (vinyl alcohol)/MultiWall carbon nanotubes nanocomposite 聚乙烯醇/多壁碳纳米管纳米复合材料的振动和热性能

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773061

N. Diouri, M. Baitoul

引用次数: 0

Structural features of ternary Al-Fe-Ti alloys 三元Al-Fe-Ti合金的结构特征

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773105

L. Bendjeddou, M. Debili, A. Fekrache, S. Boulkhessaim

引用次数: 0

Characteristics of radar images in radio vision systems of the automobile 汽车无线电视觉系统中雷达图像的特性

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773062

A. Ananenkov, A. Konovaltsev, V. Nujdin, V. Rastorguev, P. Sokolov

引用次数: 7

Estimation of multimode optical fiber network size 多模光纤网络规模估计

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773091

E. Beres-Pawlik, G. Budzyń, G. Lis, T. Duchiewicz

引用次数: 2

Raman amplification in the context of Next-Generation Passive Optical Networks 下一代无源光网络中的拉曼放大

2008 2nd ICTON Mediterranean Winter Pub Date : 2008-12-01 DOI: 10.1109/ICTONMW.2008.4773082

J. Andrade, B. Neto, A. Rocha, C. Reis, A. Teixeira, P. André

引用次数: 1