Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)最新文献_第7页

Tailoring diffraction: linear and nonlinear applications 裁剪衍射:线性和非线性应用

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910250

H. Eisenberg, Y. Silberberg, R. Morandotti, J. Aitchison

引用次数: 0

The influence of gain-saturation on Kerr-lens mode locking of a Cr:LiSAF laser 增益饱和对Cr:LiSAF激光器克尔透镜模式锁定的影响

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909938

P. Russbuldt, K. Gabel, R. Lebert, R. Poprawe

引用次数: 1

The Laser Ion Implantation Facility LIIF: design and first results 激光离子注入装置LIIF:设计和初步结果

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910376

F. Boody, J. Kempf, R. Hopfl, H. Hora, L. Laska, L. Juha, K. Rohlena, J. Krása, M. Pfeifer, F. Woryna, J. Wołowski, V. Pefina

引用次数: 0

Efficient control of automatic pulse compressor in chirped pulse amplification system 啁啾脉冲放大系统中自动脉冲压缩器的有效控制

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909927

T. Imahoko, K. Furusawa, M. Obara

引用次数: 0

New method of fabrication of resonant photonic photonic band gap structures based on the polymer films containing multivalent rare-earth metal cations formed by stepwise alternate adsorption of metal cations and polyanions 基于金属阳离子与聚阴离子逐步交替吸附形成的多价稀土金属阳离子聚合物薄膜，制备共振光子光子带隙结构的新方法

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910039

I. V. Beresneva, G. Khomutov, B. Mantsyzov, I. A. Ozheredov, A. Shkurinov, P. Masselin, G. Mouret

引用次数: 0

Topography of the ferroelectric micro domains at the c-faces of a BaTiO/sub 3/:Rh crystal BaTiO/sub 3/:Rh晶体c面铁电微畴的形貌

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909900

P. Mathey, P. Lompré, P. Julhen, D. Rytz

引用次数: 0

Nonlinear conversion processes in one-dimensional photonic band gap structures: blue and green light emission 一维光子带隙结构中的非线性转换过程:蓝光和绿光发射

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910251

M. Centini, C. Sililia, G. D’Aguanno, M. Bertolotti, M. Scalora, M.J. Bloerner, C. Bowden

引用次数: 0

Pulsed single-mode doubly resonant optical parametric oscillator based on the Vernier effect 基于游标效应的脉冲单模双谐振光学参量振荡器

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910304

I. Ribet, A. Godard, C. Ventalon, C. Simonneau, E. Rosencher, M. Lefèbvre

引用次数: 1

Reconfigurable beam shaping in parametric wave mixing 参数波混频中的可重构波束整形

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909701

G. Molina-Terriza, L. Torner

{"title":"Reconfigurable beam shaping in parametric wave mixing","authors":"G. Molina-Terriza, L. Torner","doi":"10.1109/CLEOE.2000.909701","DOIUrl":"https://doi.org/10.1109/CLEOE.2000.909701","url":null,"abstract":"Summary form only given. Singular light beams, that contain topological wave front dislocations, are ubiquitous entities that display fascinating properties with widespread important applications. Screw dislocations, or vortices, are a common dislocation type. They are spiral phase-ramps around a singularity where the phase of the wave is undefined and its amplitude vanishes. Vortices appear spontaneously in several settings, including in speckle-fields, in optical cavities and in the doughnut laser modes, and otherwise they can be generated with phase masks, or with astigmatic optical-components. The order of the screw dislocation multiplied by its sign is referred to as the topological charge of the dislocation. Vortices also form by self-wave front modulation in nonlinear optical media. In this context, parametric mixing of multiple waves containing wave front dislocations in quadratic nonlinear media constitutes a fascinating scenario We report investigations of the dynamics of evolution of screw phase-dislocations existing in the wave front of a Gaussian beam with nested multiple-charged vortices that propagate in quadratic nonlinear crystals under conditions for seeded second-harmonic generation. The number of existing vortices, and their location, is shown to depend on the input light and material conditions, including the topological charge, width and intensity of the pump and seed signals, as well as on the propagation length inside the crystal. Spontaneous vortex pair nucleation consistent with the above predictions was observed in our experiments in KTP cut for Type II phase-matching at /spl lambda/=1.064 /spl mu/m.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114961536","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

Novel quantum well intermixing in InGaAs-InGaAsP laser structure using argon plasma exposure 采用氩等离子体曝光的InGaAs-InGaAsP激光结构中新型量子阱混合

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910112

Terence Wee, B. Ooi, T. Ong, Y. Lam, Y. Chan, G. Ng

{"title":"Novel quantum well intermixing in InGaAs-InGaAsP laser structure using argon plasma exposure","authors":"Terence Wee, B. Ooi, T. Ong, Y. Lam, Y. Chan, G. Ng","doi":"10.1109/CLEOE.2000.910112","DOIUrl":"https://doi.org/10.1109/CLEOE.2000.910112","url":null,"abstract":"Summary form only given. We report a novel quantum well intermixing (QWI) technique in InGaAs-InGaAsP laser structures using high-density Ar plasma exposure. Samples with single quantum well laser structure were exposed to Ar plasma generated by an ECR system at different process conditions and exposure times. During the plasma treatment the Ar flow rate and process pressure were fixed at 50 sccm and 30 mTorr, respectively. The RF power was set to 450 W, while the microwave power to 1400 W for a set of samples, and 800 W for another. After plasma exposure, the samples were subsequently annealed at 600/spl deg/C for 2 minutes using a rapid thermal processor. Photoluminescence measurements at 77 K were then performed to assess the degree of bandgap shift. The degree of intermixing gradually increases with increasing exposure time for samples exposed at 1400 W. The bandgap shift saturated at about 106 nm (72 meV) after 10 min of plasma treatment. The samples exposed to 800 W produced results of similar trend to that of 1400 W, but with lower degrees of blue shift. This could be attributed to the use of lower microwave power, and hence lower ionization of Ar plasma, producing lower defect density due to ion bombardment as well as radiation.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115103117","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: 5