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International Conference on Coherent and Nonlinear Optics最新文献

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Design of high gain OPCPA for multiterawatt and petawatt class systems on large aperture LBO crystals 基于大孔径LBO晶体的多太瓦和千兆瓦级系统高增益OPCPA设计
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881746
E. Pestryakov, V. Petrov, V. Trunov, S. Frolov, A. Kirpichnikov, S. Bagayev, A. Kokh
{"title":"Design of high gain OPCPA for multiterawatt and petawatt class systems on large aperture LBO crystals","authors":"E. Pestryakov, V. Petrov, V. Trunov, S. Frolov, A. Kirpichnikov, S. Bagayev, A. Kokh","doi":"10.1117/12.881746","DOIUrl":"https://doi.org/10.1117/12.881746","url":null,"abstract":"Comparative analysis of optimal scheme of non-collinear optical chirped-pulse parametric amplification of fewcycle femtosecond pulses from Ti:Sa laser in LBO and DKDP crystals pumped by picosecond pulses up to petawatt level is presented. A flexible code, based on the extended model of parametric amplification, which takes into account the large set of effects such as saturation, phase self-modulation, influence of beam divergence, thermal effects, and amplification of spontaneous emission was realized. A way of creating nearly 1 PW system based on LBO crystals with transform-limited pulse duration about 9 fs has been demonstrated. Comparison between DKDP and LBO crystal showed that the latter is much better for OPCPA petawatt system design than DKDP.","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":"128011743","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: 9
Reactive pulsed laser deposition of WOx layers for SiC-based hydrogen sensor fabrication 反应脉冲激光沉积用于硅基氢传感器的WOx层
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880908
V. Fominski, A. Gnedovets, R. Romanov, M. Demin
{"title":"Reactive pulsed laser deposition of WOx layers for SiC-based hydrogen sensor fabrication","authors":"V. Fominski, A. Gnedovets, R. Romanov, M. Demin","doi":"10.1117/12.880908","DOIUrl":"https://doi.org/10.1117/12.880908","url":null,"abstract":"Peculiarities of WOx films fabrication by reactive pulsed laser deposition for high temperature Pt-oxide-SiC devices formation were investigated. Deposition of the oxide film was also carried out in such a way as to prevent deposition of droplet fraction (deposition with anti-droplet screen). Direct Simulation Monte Carlo and Kinetic Monte Carlo methods were performed for the deposition processes modeling. The response of the SiC-based devices to hydrogen-containing gases depends on the conditions of deposition of the oxide layer. The best properties were found in the sensor obtained by depositing the scattered flux of W atoms in a shady area on SiC substrate at an oxygen pressure of 10 Pa.","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":"134095972","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
Ultrafast dynamics of crystalline bismuth studied by femtosecond pulses in visible and near-infrared range 用飞秒脉冲在可见光和近红外波段研究晶体铋的超快动力学
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881340
A. A. Melnikov, O. Misochko, S. Chekalin
{"title":"Ultrafast dynamics of crystalline bismuth studied by femtosecond pulses in visible and near-infrared range","authors":"A. A. Melnikov, O. Misochko, S. Chekalin","doi":"10.1117/12.881340","DOIUrl":"https://doi.org/10.1117/12.881340","url":null,"abstract":"Ultrafast dynamics of bismuth excited by femtosecond laser pulses was studied varying wavelength of pump and probe pulses from 400 to 2500 nm and from 400 to 900 nm respectively. Three relaxational components with decay rates of 1 ps, 7 ps and ~ 1 ns were found in the photoinduced response. The fastest process is ascribed to the excited electrons at T6+ point of the Brillouin zone, that are responsible for coherent A1g phonon generation and its frequency softening. Intermediate component is due to crystal heating via electron-phonon interaction. Finally, a long-lived nanosecond signal is linked to electrons near the Fermi level at Ls point.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"18 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":"134570442","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
New nonlinear phenomena under conditions of strong selective reflection 强选择性反射条件下的新非线性现象
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.882693
Y. Fofanov
{"title":"New nonlinear phenomena under conditions of strong selective reflection","authors":"Y. Fofanov","doi":"10.1117/12.882693","DOIUrl":"https://doi.org/10.1117/12.882693","url":null,"abstract":"This work is devoted to study of the strong selective reflection of obliquely incident laser beam (inclined geometry) from the interface \"glass-rubidium vapour\". It is shown that the contrast of the strongest refection resonances exceeds 500% at the moderate heating of reflecting cells. The new nonlinear properties of selective reflection resonances have been investigated - asymmetry of saturation of resonant total internal reflection (TIR) and nonlinear structures that appear under conditions close to resonant TIR. The observed structures can not be associated with well-known sub-Doppler resonances in selective reflection. The nonlinear structures described here do not have saturation properties in usual sense. They exist only in the inclined geometry and in a narrow range of saturating values of the surface power density at the interface. The transformation of the fluctuations of reflected light was also investigated at the optical saturation of selective reflection resonances. For this purpose the intensity of incident light was slightly modulated. The reduction of the corresponding intensity modulation was registered in the reflected light. This reduction of the intensity fluctuations (\"classical squeezing\") and the relatively high selective reflection coefficient offer good possibilities for the squeezing of quantum fluctuations in the reflected light. In the process of appropriate studies it was found that the reduction (squeezing) of photons (quantum) fluctuations in the reflected light beam is about of 5% in compare with the coherent light.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"64 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":"132727694","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: 6
Hyper-Raman effect treatment in a rutile crystal 金红石晶体的超拉曼效应处理
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881007
L. Semenova, K. Prokhorov
{"title":"Hyper-Raman effect treatment in a rutile crystal","authors":"L. Semenova, K. Prokhorov","doi":"10.1117/12.881007","DOIUrl":"https://doi.org/10.1117/12.881007","url":null,"abstract":"The resonant hyper-Raman scattering of light by LO and TO phonons is theoretically investigated in a rutile crystal, taking into account the Wannier excitons as intermediate virtual states. Different scattering mechanisms are considered.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"77 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":"131127241","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
Radiation back-reaction and pair creation in the interaction of QED-strong laser fields with electron beams qed强激光场与电子束相互作用中的辐射反反应和对产生
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881788
N. Naumova, I. Sokolov, J. Nees, G. Mourou
{"title":"Radiation back-reaction and pair creation in the interaction of QED-strong laser fields with electron beams","authors":"N. Naumova, I. Sokolov, J. Nees, G. Mourou","doi":"10.1117/12.881788","DOIUrl":"https://doi.org/10.1117/12.881788","url":null,"abstract":"Electron-positron pair creation is among the QED-effects known to occur in a strong laser pulse interaction with a counter-propagating electron beam. In this regime multiple pairs may be generated from a single beam electron, some of the newborn particles being capable of further pair production. Radiation back-reaction prevents avalanche development and limits pair creation. The system of integro-differential kinetic equations for electrons, positrons and γ-photons is solved numerically.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"92 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":"116077819","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
Application of the longitudinal electro-optical effect in KD*P for detection of a Doppler shift of the wave frequency at reflection from the high-temperature laser plasma KD*P中纵向电光效应在高温激光等离子体反射波频率多普勒频移探测中的应用
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880734
B. V. Anikeev, M. Fedotova, I. V. Kas'yanov, V. Khramov, N. V. Solosov
{"title":"Application of the longitudinal electro-optical effect in KD*P for detection of a Doppler shift of the wave frequency at reflection from the high-temperature laser plasma","authors":"B. V. Anikeev, M. Fedotova, I. V. Kas'yanov, V. Khramov, N. V. Solosov","doi":"10.1117/12.880734","DOIUrl":"https://doi.org/10.1117/12.880734","url":null,"abstract":"Research of a Doppler shift of frequency of the Nd-laser pulse radiation reflected from a laser plasma in air, using the KD*P electrooptic cell is carried out. Under these conditions the dependence of a half-wave voltage of a cell on a wavelength is used. Velocity of electrons in laser plasma is obtained to attain the peak meaning 1% from light velocity.","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":"123382877","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
Numerical investigation of the excitation of surface plasmon polariton on a periodic surface nanograting composed of metallic nanowires 金属纳米线组成的周期性表面纳米光栅表面等离子激元激发的数值研究
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881881
A. Andreev, A. A. Konovko, I. Prudnikov
{"title":"Numerical investigation of the excitation of surface plasmon polariton on a periodic surface nanograting composed of metallic nanowires","authors":"A. Andreev, A. A. Konovko, I. Prudnikov","doi":"10.1117/12.881881","DOIUrl":"https://doi.org/10.1117/12.881881","url":null,"abstract":"The optical reflection and transmission spectra of a metallic nanograting are studied. It is shown that the specific feature of nanograting reflection spectra is the presence of a few resonant dips.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"48 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":"123499103","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
Protein conformation change induced by THz laser radiation 太赫兹激光辐射诱导的蛋白质构象改变
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880335
A. V. Kapralova, A. S. Pogodin
{"title":"Protein conformation change induced by THz laser radiation","authors":"A. V. Kapralova, A. S. Pogodin","doi":"10.1117/12.880335","DOIUrl":"https://doi.org/10.1117/12.880335","url":null,"abstract":"In the present work, the influence of the terahertz laser radiation at the frequencies of 1,15 and 3,68 THz on protein was studied. An increase in the optical density of irradiated samples on their absorption bands was revealed with the help of UV spectroscopy. This is an evidence of conformational changes in the protein molecule.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"102 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":"116264679","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
Influence of THz radiation on early phase of seed germinating and yield of wheat 太赫兹辐射对小麦种子萌发前期及产量的影响
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881857
V. Fedorov, G. F. Bakharev
{"title":"Influence of THz radiation on early phase of seed germinating and yield of wheat","authors":"V. Fedorov, G. F. Bakharev","doi":"10.1117/12.881857","DOIUrl":"https://doi.org/10.1117/12.881857","url":null,"abstract":"Irradiation (1, 2 or 3 hours) of elite wheat grains by THz radiation (3,68 THz) induces a shortening of seed imbibition period. The most pronounced effect was observed after two hours of irradiation. Irradiation of 3rd class seeds does not influence seed imbibition period. It is assumed that shortening of imbibition period caused by THz radiation influence on conformation of m-RNA and proteins of endosperm cells that regulate a water movement into grains. THz radiation induces an increase of stem and panicle length, panicle mass, grain number in panicle and grain protein content. These changes can be conditioned by influence of THz radiation on seed genetic system.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"26 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":"116430197","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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