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International Conference on Coherent and Nonlinear Optics最新文献

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Photo-cycle dynamics of LOV1-His domain of phototropin from Chlamydomonas reinhardtii with roseoflavin monophosphate cofactor 莱茵衣藻光促蛋白LOV1-His结构域与单磷酸玫瑰黄素辅因子的光循环动力学
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.879134
A. Tyagi, A. Penzkofer, T. Mathes, P. Hegemann
{"title":"Photo-cycle dynamics of LOV1-His domain of phototropin from Chlamydomonas reinhardtii with roseoflavin monophosphate cofactor","authors":"A. Tyagi, A. Penzkofer, T. Mathes, P. Hegemann","doi":"10.1117/12.879134","DOIUrl":"https://doi.org/10.1117/12.879134","url":null,"abstract":"The wild-type phototropin protein phot from the green alga Chlamydomonas reinhardtii consists of two N-terminal LOV domains LOV1 and LOV2 with flavin mononucleotide (FMN) cofactor and a C-terminal serine-threonine kinase domain. It controls multiple steps in the sexual lifecycle of the alga. Here the LOV1-His domain of phot with modified cofactor is studied. FMN is replaced by roseoflavin monophosphate (8-dimethylamino-8-demethyl-FMN, RoFMN). The modified LOV1 domain is called RoLOV1. The photo-dynamics consequences of the cofactor change are studied. The absorption, emission, and photo-cyclic behaviour of LOV1-His and RoLOV1-His are compared. A spectroscopic characterisation of the cofactors FMN and RoFMN (roseoflavin) is given.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132707831","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
Spectroscopic analysis of multicomponent gas mixtures with wide range carbon monoxide laser 大范围一氧化碳激光多组分混合气体的光谱分析
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880040
E. Bondarchuk, A. Ionin, A. Kozlov, Y. Klimachev, A. Kotkov, O. Romanovskii, S. Yakovlev
{"title":"Spectroscopic analysis of multicomponent gas mixtures with wide range carbon monoxide laser","authors":"E. Bondarchuk, A. Ionin, A. Kozlov, Y. Klimachev, A. Kotkov, O. Romanovskii, S. Yakovlev","doi":"10.1117/12.880040","DOIUrl":"https://doi.org/10.1117/12.880040","url":null,"abstract":"Possibility to apply wide range CO-laser for detection of trace gas pollutions in multicomponent gas mixture is studied both theoretically and experimentally. Parameters of sensitivity and selectivity for multicomponent gas analysis with CO-laser were calculated.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124343076","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
Spatial structure of focused beam of a high-power fiber laser 高功率光纤激光器聚焦光束的空间结构
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881856
M. G. Galushkin, E. Egorov, V. Panchenko, A. Solovyov, V. V. Vasiltsov
{"title":"Spatial structure of focused beam of a high-power fiber laser","authors":"M. G. Galushkin, E. Egorov, V. Panchenko, A. Solovyov, V. V. Vasiltsov","doi":"10.1117/12.881856","DOIUrl":"https://doi.org/10.1117/12.881856","url":null,"abstract":"The spatial characteristics of the focused beam of a fiber 2 kW laser have been measured. The problems of matching this beam structure, greatly differing from the Gaussian form, with technological operations have been considered.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116882512","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
Defects in a bulk GaAs and Q-switching of a Nd:YAG laser with a GaAs output coupler 带GaAs输出耦合器的Nd:YAG激光器的块体GaAs和q开关缺陷
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881110
S. Payziyev, S. Bakhramov, A. Kasimov, F. Shayimov
{"title":"Defects in a bulk GaAs and Q-switching of a Nd:YAG laser with a GaAs output coupler","authors":"S. Payziyev, S. Bakhramov, A. Kasimov, F. Shayimov","doi":"10.1117/12.881110","DOIUrl":"https://doi.org/10.1117/12.881110","url":null,"abstract":"By using a bulk GaAs as an output coupler as well as a saturable absorber, with changing of concentration of defects inside the laser cavity, Q-switching of flash-lamp pumped Nd:YAG laser has been studied. It is shown that the mechanism of formation of the laser pulses, in a wide range of duration which were reported in a lot of previous papers is caused by the intracavity changes of the defect concentration in a GaAs.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121937816","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
Radio frequency excited planar CO2 and CO lasers 射频激发平面CO2和CO激光器
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881591
A. Mineev, S. Nefedov, P. Pashinin, P. Goncharov, V. Kiselev
{"title":"Radio frequency excited planar CO2 and CO lasers","authors":"A. Mineev, S. Nefedov, P. Pashinin, P. Goncharov, V. Kiselev","doi":"10.1117/12.881591","DOIUrl":"https://doi.org/10.1117/12.881591","url":null,"abstract":"Radiation characteristics of planar diffusion-cooled CO2- and CO-lasers created using the same design and excited by a RF discharge at a frequency of 40 MHz have been studied. A single-mode cw lasing power of ~ 100 W has been achieved with an efficiency of ~ 10 % for a CO2-laser with a diffraction-limited radiation divergence of 4 - 7 mrad. For a CO-laser with electrode temperature of -65 °C, a cw output power of 60 W with an efficiency of ~ 10% has been achieved in the wavelength range 5.3 - 6.0 μm.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116904328","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: 8
Temporal shaping of ultrashort laser pulses by volumetric chirped Bragg gratings 体积啁啾布拉格光栅对超短激光脉冲的时域整形
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881755
A. Manenkov, A. Muraviev, A. Smirnov, E. Shashkov, N. Vorobiev
{"title":"Temporal shaping of ultrashort laser pulses by volumetric chirped Bragg gratings","authors":"A. Manenkov, A. Muraviev, A. Smirnov, E. Shashkov, N. Vorobiev","doi":"10.1117/12.881755","DOIUrl":"https://doi.org/10.1117/12.881755","url":null,"abstract":"The method of temporal laser pulses shaping based on stretching-compressing and profiling of a pulse by volumetric chirped Bragg gratings is proposed and realized in ps-duration range. Experimental results of the study are presented.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128468979","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
Raman and infrared spectroscopy of organic electronic devices 有机电子器件的拉曼光谱和红外光谱
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880237
Y. Furukawa
{"title":"Raman and infrared spectroscopy of organic electronic devices","authors":"Y. Furukawa","doi":"10.1117/12.880237","DOIUrl":"https://doi.org/10.1117/12.880237","url":null,"abstract":"We present Raman and infrared studies on the structures of organic semiconductor thin films used for electronic devices. The Raman spectra of crystalline and amorphous states of an organic semiconductor, N,N'-di-1-naphthaleyl-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine (NPD), were measured. These states give rise to slightly different peak positions and widths of each Raman band. Raman images were observed for polycrystalline pentacene films evaporated on a silicon substrate. The structural defects were found in the images of the intensity ratio I1596/I1533, which reflects the orientation of molecules i.e., crystalline domains. Photoinduced infrared absorption from the composite of regioregular poly(3-dodecylthiphene) and C60 was measured by the difference FT-IR method. The observed absorption is attributable to photogenerated carriers. The action spectra of photoinduced infrared absorption are explained by electron transfer from photogenerated excited states on a polymer chain to C60.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132981080","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
Magneto-optical CPT resonances in rubidium excited by femtosecond laser comb 飞秒激光梳激发铷的磁光CPT共振
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.882129
R. A. Malitskiy, V. M. Khodakovskiy, A. Negriyko, V. Romanenko, I. V. Matsnev, L. Yatsenko
{"title":"Magneto-optical CPT resonances in rubidium excited by femtosecond laser comb","authors":"R. A. Malitskiy, V. M. Khodakovskiy, A. Negriyko, V. Romanenko, I. V. Matsnev, L. Yatsenko","doi":"10.1117/12.882129","DOIUrl":"https://doi.org/10.1117/12.882129","url":null,"abstract":"We investigate the coherent population trapping (CPT) resonances excited in rubidium atoms by the femtosecond optical comb in magnetic field. The light shift of resonances was observed and studied.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126558453","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: 4
A model of equivalent temperature of nonlinear-optical crystal under action of high power laser radiation 建立了高功率激光作用下非线性光学晶体的等效温度模型
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880915
D. Myasnikov, A. V. Konyashkin, O. Ryabushkin
{"title":"A model of equivalent temperature of nonlinear-optical crystal under action of high power laser radiation","authors":"D. Myasnikov, A. V. Konyashkin, O. Ryabushkin","doi":"10.1117/12.880915","DOIUrl":"https://doi.org/10.1117/12.880915","url":null,"abstract":"A model of nonlinear-optical crystal heating is proposed that enables one to determine temperature distribution inside the sample under action of laser radiation from the measurements of internal crystal temperature. Absorption and heat transfer coefficient at crystal-air boundary are also determined. Crystal temperature is measured by analyzing changes of piezoelectric resonance frequencies of the sample.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121453719","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
Sub-nanosecond high-energy pulses from ultra-long mode-locked erbium fiber lasers 超长锁模铒光纤激光器的亚纳秒高能脉冲
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881888
B. Nyushkov, I. Korel, V. Denisov, V. Pivtsov, N. Kolyada
{"title":"Sub-nanosecond high-energy pulses from ultra-long mode-locked erbium fiber lasers","authors":"B. Nyushkov, I. Korel, V. Denisov, V. Pivtsov, N. Kolyada","doi":"10.1117/12.881888","DOIUrl":"https://doi.org/10.1117/12.881888","url":null,"abstract":"We report on the microjoule pulse energy achieved in mode-locked erbium fiber lasers with kilometers-long normaldispersion cavities. We also show that generated highly-chirped pulses are subject to efficient compression when propagating in anomalous-dispersion telecom fibers.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115256493","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
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