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CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.最新文献

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Wide bandgap air-guiding modified honeycomb photonic crystal fibers 宽禁带导气改性蜂窝光子晶体光纤
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568353
L. Vincetti, F. Poll, A. Cucinotta, S. Selleri
{"title":"Wide bandgap air-guiding modified honeycomb photonic crystal fibers","authors":"L. Vincetti, F. Poll, A. Cucinotta, S. Selleri","doi":"10.1109/CLEOE.2005.1568353","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568353","url":null,"abstract":"Air-guiding in a photonic crystal fiber with a modified honeycomb lattice has been demonstrated for the first time. A guided mode confined in the hollow core has been found in a wavelength range wider than 200 nm","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127671849","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
Nonlinearity-induced effects of Bose-Einstein condensates in periodic potentials 周期势中玻色-爱因斯坦凝聚体的非线性诱导效应
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568477
O. Morsch
{"title":"Nonlinearity-induced effects of Bose-Einstein condensates in periodic potentials","authors":"O. Morsch","doi":"10.1109/CLEOE.2005.1568477","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568477","url":null,"abstract":"In BECs, collisions between condensate atoms give rise to a nonlinear contribution to the dynamics which is typically included as a mean-field term in the Schrodinger equation. This nonlinearity leads to a modification of well-known effects associated with matter waves in periodic potentials and adds a number of phenomena that are absent in the linear problem. We focused on the dynamics of a BEC in an accelerated optical lattice. In the linear case, this gives rise to Bloch oscillations and, above a critical acceleration, to Landau-Zener tunneling. In the nonlinear case, the probability for Landau-Zener tunneling is modified depending on the direction in which it occurs between two bands. By varying the acceleration of the optical lattice and measuring the time-dependence of the interference contrast, we were able to identify the instability regime and the characteristic time in which the dynamical instability destroys the interference pattern. Furthermore, we observed an increase in the condensate dimensions perpendicular to the lattice direction when the unstable region was reached. This indicates a mechanism whereby the longitudinal instability leads to an increase in the transverse release energy","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129199131","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
Silicon photonic crystals and photonic wires circuits 硅光子晶体和光子线电路
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568363
Y. Vlasov, E. Dulkeith, L. Sekaric, S. Assefa, M. O'Boyle, S. Mcnab
{"title":"Silicon photonic crystals and photonic wires circuits","authors":"Y. Vlasov, E. Dulkeith, L. Sekaric, S. Assefa, M. O'Boyle, S. Mcnab","doi":"10.1109/CLEOE.2005.1568363","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568363","url":null,"abstract":"We will review the latest results on development of submicron silicon-on-insulator waveguiding structures - photonic crystals and single-mode strip waveguides (photonic wires)","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116997147","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
Generating 1500 nm light from silicon based light-emitting layer mixed with Er/sub 2/O/sub 3/ and Yb/sub 2/O/sub 3/ nanoparticles 利用掺有Er/sub 2/O/sub 3/和Yb/sub 2/O/sub 3/纳米颗粒的硅基发光层产生1500 nm光
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568358
K. Sun, Yi-shin Su, Ching-Fuh Lin
{"title":"Generating 1500 nm light from silicon based light-emitting layer mixed with Er/sub 2/O/sub 3/ and Yb/sub 2/O/sub 3/ nanoparticles","authors":"K. Sun, Yi-shin Su, Ching-Fuh Lin","doi":"10.1109/CLEOE.2005.1568358","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568358","url":null,"abstract":"We explore a new way for light emission around 1500 nm. The light-emitting layer composed of Er<sub>2</sub>O<sub>3</sub> nanoparticles and spin-on glass is deposited on silicon wafers. We can improve the efficiency by codoping Yb<sub>2</sub>O<sub>3</sub> nanoparticles","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121078805","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
Industry-grade pulsed fiber laser with 10W output power at 532nm 工业级脉冲光纤激光器，输出功率10W，波长532nm
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568309
A. Bahushkin, D. Gapontsev, N. Platonov, V. Gapontsev
{"title":"Industry-grade pulsed fiber laser with 10W output power at 532nm","authors":"A. Bahushkin, D. Gapontsev, N. Platonov, V. Gapontsev","doi":"10.1109/CLEOE.2005.1568309","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568309","url":null,"abstract":"We have generated 10 W average power at 532 nm by frequency doubling in the LBO the output of pulsed fiber 1064 nm laser operating at ~1 MHz repetition rate with 1.6 ns pulse duration and over 20 W average power","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124434950","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
Modeling of laser welding - a metallurgical perspective 激光焊接的建模-冶金角度
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568433
E. Metzbower
{"title":"Modeling of laser welding - a metallurgical perspective","authors":"E. Metzbower","doi":"10.1109/CLEOE.2005.1568433","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568433","url":null,"abstract":"The interaction of a high power laser beam and a solid metallic material is discussed, leading to the formation of a keyhole in steel. The requirements for a laser to produce a keyhole are stated. Surrounding the keyhole is a molten pool, whose flow can be calculated by the appropriate equations. The use of time-temperature-transformation curves for steels superimposed by the cooling curves from different laser beam welding conditions is presented","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121292915","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
Local investigation of photonic crystal devices in space and time 光子晶体器件在时空上的局部研究
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568348
L. Kuipers, R. Engelen, H. Gersen, T. Karle, J. Korterik, N. V. van Hulst, Y. Sugimoto, N. Ikeda, T. Krauss, K. Asakawa
{"title":"Local investigation of photonic crystal devices in space and time","authors":"L. Kuipers, R. Engelen, H. Gersen, T. Karle, J. Korterik, N. V. van Hulst, Y. Sugimoto, N. Ikeda, T. Krauss, K. Asakawa","doi":"10.1109/CLEOE.2005.1568348","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568348","url":null,"abstract":"In this paper, the investigation of light propagating inside such a structure is usually limited by both the diffraction limit and the absence of radiating light. We have solved this by investigating a photonic crystal waveguide with a phase-sensitive time-resolved near-field scanning microscope. Photonic crystals are promising structures for controlling light, because the light has to obey Bloch's theorem. The resulting control over optical dispersion allows time control in integrated optical structures and enhancement of light-matter interactions","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122635179","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
Beam attenuation in the laser cladding process 激光熔覆过程中的光束衰减
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568445
J. Alvarez, J. M. Amado, G. Rodríguez, M. Tobar, A. Yáñez
{"title":"Beam attenuation in the laser cladding process","authors":"J. Alvarez, J. M. Amado, G. Rodríguez, M. Tobar, A. Yáñez","doi":"10.1109/CLEOE.2005.1568445","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568445","url":null,"abstract":"In the laser cladding processes a powder is placed on the surface of the workpiece and heated beyond the melting point by the beam. The laser produces the fusion of the base material and the powder particles producing, during the cooling process, a layer with a chemical composition close to the fed material. This work wants to compute these effects which are basically the heating of the fed material when flying under the laser beam and the decreasing of the beam power due to such heating","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123969638","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
40% slope efficiency in a waveguide dye laser using a random active layer 使用随机有源层的波导染料激光器的40%斜率效率
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568329
H. Watanabe, Y. Oki, M. Maeda, T. Omatsu
{"title":"40% slope efficiency in a waveguide dye laser using a random active layer","authors":"H. Watanabe, Y. Oki, M. Maeda, T. Omatsu","doi":"10.1109/CLEOE.2005.1568329","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568329","url":null,"abstract":"We have demonstrated a waveguide dye laser including a thin active random layer. Use of thin film containing nano-size particles as well as laser dye (random active layer) is a promising solution to improve the efficiency. In this paper, we report a full characterization of the device parameters. We also demonstrated a low-threshold, highly efficient distributed feedback dye laser using an active random scattering media. And the slope efficiency of 38.5% and threshold of 0.96 muJ have achieved, respectively. This device has the ability that can be applied for the laser spectroscopy","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788833","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
Tunable diode laser spectroscopy for gas detection inside scattering media 用于散射介质内气体检测的可调谐二极管激光光谱
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568422
L. Persson, M. Sjoholm, G. Hong, M. Andersson, S. Svanberg
{"title":"Tunable diode laser spectroscopy for gas detection inside scattering media","authors":"L. Persson, M. Sjoholm, G. Hong, M. Andersson, S. Svanberg","doi":"10.1109/CLEOE.2005.1568422","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568422","url":null,"abstract":"The present communication is mainly focused on molecular oxygen detection in porous organic matter, through a tunable diode laser spectroscopy. Initial measurements on wood were preformed in order to illustrate the influence of the density and anisotropy of the sample on the GASMAS-signal. Additional measurements were performed on horticultural produces, in which the concentration of the molecular oxygen gas is of crucial importance for the ripening process and the quality of the produces. The methodology presented is general and can be applied to a large number of problems concerning gas exchange in porous materials, which can be of interest in applications ranging from biological and medical to industrial and pharmaceutical","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122873790","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
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