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International Conference on Coherent and Nonlinear Optics最新文献

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Frequency-modulation spectroscopy of coherent dark resonances of multilevel atoms in magnetic field 磁场中多能级原子相干暗共振的调频光谱
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.883103
Y. Vladimirova, V. Zadkov
{"title":"Frequency-modulation spectroscopy of coherent dark resonances of multilevel atoms in magnetic field","authors":"Y. Vladimirova, V. Zadkov","doi":"10.1117/12.883103","DOIUrl":"https://doi.org/10.1117/12.883103","url":null,"abstract":"Theoretical study and computer modeling results of the spectra of coherent dark resonances resulted from excitation of Zeeman sublevels of the Fg=2→Fe=1 transition of the D1 line in 87Rb atoms by a frequency-modulated laser field are presented and discussed in detail. The influence of the nonlinear Zeeman effect on the structure of the coherent dark resonances is observed. It is shown that calculated for different values of the magnetic field spectra are in a good agreement with the experimental data.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"4 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":"122825513","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
Laser cavity round trip time scale regular and chaotic nonlinear dynamics in a picosecond laser controlled with a combination of positive and negative optoelectronic feedbacks 正负光电反馈组合控制的皮秒激光空腔往返时标规则和混沌非线性动力学
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880828
K. Bubnov, M. Gorbunkov, S. M. Kutuzov, Y. Maslova, V. Petukhov, M. Semenov, Y. Shabalin
{"title":"Laser cavity round trip time scale regular and chaotic nonlinear dynamics in a picosecond laser controlled with a combination of positive and negative optoelectronic feedbacks","authors":"K. Bubnov, M. Gorbunkov, S. M. Kutuzov, Y. Maslova, V. Petukhov, M. Semenov, Y. Shabalin","doi":"10.1117/12.880828","DOIUrl":"https://doi.org/10.1117/12.880828","url":null,"abstract":"We proposed a simple laser system controlled by optimally adjusted combination of inertial negative and positive feedbacks capable to demonstrate the nonlinear regular and chaotic dynamics on the time scale of the laser cavity round trip time. The numeric simulation proved that such a system can be realized on the basis of the optoelectronically controlled solid state laser.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"35 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120840779","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
The plasma gamma ray laser creation and first gamma holograms production 等离子体伽马射线激光的创造和第一个伽马全息图的制作
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881761
V. Skvortsov, N. Vogel
{"title":"The plasma gamma ray laser creation and first gamma holograms production","authors":"V. Skvortsov, N. Vogel","doi":"10.1117/12.881761","DOIUrl":"https://doi.org/10.1117/12.881761","url":null,"abstract":"The direct observation of gamma-ray laser radiation on wavelength λ ≈ 0.2 nm have been carried out from tantalum-181 plasma, produced by picosecond ND:YAG laser (under an additional influence of external electric field and without them). It had been established that duration of such radiation in mode of ASR (\"Amplification of Spontaneous Radiation\") approximately equals 1-3 ns on the background of isotropic distribution of intensity the strongly directed components along micro plasma jets. Such gamma-ray laser radiation penetrates throw Be-filter (thickness 130 μm) from vacuum chamber into atmosphere, where the gamma-holograms were produced in closed box. So the coherence of generated gamma-ray radiation can be confirmed by the first our gamma-holograms production. Few examples of gamma-holograms and its images of different micro objects are considered. The constructed compact gamma-ray facility and developed gamma-ray holographic method will be very useful to experimental investigations in area of microbiology, genetics and etc.","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":"125406421","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
Formation of low-reflection multicrystalline silicon surface by laser-induced structuring for application on silicon solar cells 应用于硅太阳电池的激光诱导结构形成低反射多晶硅表面
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881756
D. Zuev, O. Novodvorsky, E. Khaydukov, O. Khramova, A. Lotin, L. Parshina, V. Rocheva, V. Panchenko, A. Poroykov, G. Untila, A. Chebotareva, T. Kost, M. Timofeev
{"title":"Formation of low-reflection multicrystalline silicon surface by laser-induced structuring for application on silicon solar cells","authors":"D. Zuev, O. Novodvorsky, E. Khaydukov, O. Khramova, A. Lotin, L. Parshina, V. Rocheva, V. Panchenko, A. Poroykov, G. Untila, A. Chebotareva, T. Kost, M. Timofeev","doi":"10.1117/12.881756","DOIUrl":"https://doi.org/10.1117/12.881756","url":null,"abstract":"The formation of laser-induced structures on the multicrystalline silicon surface has been investigated. Optimum performances of the surface structurization have been explored. A cardinal decrease in reflectance from modified surface has been discovered in a wide spectral range in comparison with the samples of chemically texturized monocrystalline silicon. The influence of subsequent chemical etching on the reflection spectra of the texturized samples surface has been analyzed.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"45 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":"127298276","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
Estimation of the concentration of deep traps in organic photoconductors using two-photon absorption 利用双光子吸收估计有机光导体中深阱的浓度
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881032
S. Novikov, A. Tameev, A. Vannikov, J. Nunzi
{"title":"Estimation of the concentration of deep traps in organic photoconductors using two-photon absorption","authors":"S. Novikov, A. Tameev, A. Vannikov, J. Nunzi","doi":"10.1117/12.881032","DOIUrl":"https://doi.org/10.1117/12.881032","url":null,"abstract":"Typically, amorphous organic materials contain high density of traps. Traps hinder charge transport and, hence, affect various working parameters of organic electronic devices. In this paper we suggest a simple but reliable method for the estimation of the concentration of deep traps (traps that keep carriers for a time much longer than the typical transport time of the device). The method is based on the measurement of the dependence of the total charge, collected at the electrode, on the total initial charge, uniformly generated in the transport layer under the action of a light pulse. Advantages and limitations of the method are discussed and an experimental example of the estimation of the density of deep traps in photoconductive organic material poly(2-methoxy-5- (2'-ethylhexyloxy)-1,4-phenylenevinylene (MEH-PPV) is provided.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"6 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":"126638244","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
Characterization of size and refractive index of spherical particles with the neural networks by multi-angle light scattering data 基于多角度光散射数据的神经网络球形粒子尺寸和折射率表征
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.882064
V. Berdnik, Olga A. Gritsai, V. Loiko
{"title":"Characterization of size and refractive index of spherical particles with the neural networks by multi-angle light scattering data","authors":"V. Berdnik, Olga A. Gritsai, V. Loiko","doi":"10.1117/12.882064","DOIUrl":"https://doi.org/10.1117/12.882064","url":null,"abstract":"A method to retrieve radius from 0.6 mkm up to 13.6 mkm and relative refractive index from 1.015 up to 1.28 of spherical homogeneous non-absorbing particles by multi-angle scattering is proposed. It is based on the formation of noise resistant functionals of the scattered intensity, which are invariant relatively linear homogeneous transformations of an intensity-based signal, and on the approximation of the retrieved parameters dependence on the functionals by a feed forward neural network. The values of intensity of light scattered in the interval of angles 10° - 60° are used. At 20% measurement errors the mean errors of the retrieval of radius and relative refractive index are 0.8% and 7%, respectively.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"25 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":"125373079","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
Electronic properties and influence of doping on GaSe crystal nonlinear optical parameters for the applications in terahertz range 在太赫兹范围内，掺杂对GaSe晶体非线性光学参数的影响及电子特性
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881836
M. Nazarov, A. Kosobutsky, S. Sarkisov, V. Brudnyi, O. Tolbanov, A. Shkurinov
{"title":"Electronic properties and influence of doping on GaSe crystal nonlinear optical parameters for the applications in terahertz range","authors":"M. Nazarov, A. Kosobutsky, S. Sarkisov, V. Brudnyi, O. Tolbanov, A. Shkurinov","doi":"10.1117/12.881836","DOIUrl":"https://doi.org/10.1117/12.881836","url":null,"abstract":"In the present paper the results of the study of semiconductor and optical properties of GaSe crystals important for their applications in nonlinear optics of terahertz and mid-IR ranges are reported as well as influence of doping with isovalent chemical elements on them. The performed first-principles calculations of charge neutrality level (CNL) in GaSe have shown its position at 0.8 eV above the top of the valence band. The location of CNL in the lower part of the band gap can explain GaSe intrinsic p-type of conductivity. In this case it is necessary to radically improve the growth technology to obtain GaSe crystals with low free carrier concentrations. Extraordinarily large birefringence of GaSe B~0.8 in terahertz range has been measured directly. In order to study the potential efficiency of application of doped GaSe crystals for terahertz generation and detection their study using terahertz time domain spectroscopy (THz-TDS) setup has been performed. According to the obtained results doped GaSe crystals are slightly less efficient for terahertz detection and generation in the frequency range 0.2-3.2 THz via optical rectification of laser pulses with λ=790 nm and τ=80 fs. On the other hand doping of GaSe with In, Al, S, Te leads to 2-3 times increase of the microhardness and the doped crystals become suitable for the mechanical treatment.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"43 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":"130424703","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
ZnO complex structures: laser spectra analysis ZnO配合物结构:激光光谱分析
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881861
V. Markushev, M. Ryzhkov, C. Briskina, A. A. Borodkin
{"title":"ZnO complex structures: laser spectra analysis","authors":"V. Markushev, M. Ryzhkov, C. Briskina, A. A. Borodkin","doi":"10.1117/12.881861","DOIUrl":"https://doi.org/10.1117/12.881861","url":null,"abstract":"Time-integrated and time-resolved laser spectra for two zinc oxide complex structures mainly consisting of tetrapods and structures of nanowire type were investigated under nanosecond pumping. Simplified models of observed lasing modes are suggested on the basis of multiple total internal reflections and analyzed numerically basing on the experimental results and using spectrum of single tetrapod from Ref.9.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"36 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133205393","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
Thermally induced scattering of radiation in laser ceramics with arbitrary grain size 任意晶粒尺寸激光陶瓷中辐射的热致散射
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.881028
A. Vyatkin, E. Khazanov
{"title":"Thermally induced scattering of radiation in laser ceramics with arbitrary grain size","authors":"A. Vyatkin, E. Khazanov","doi":"10.1117/12.881028","DOIUrl":"https://doi.org/10.1117/12.881028","url":null,"abstract":"Thermally induced beam distortions in laser ceramics with arbitrary grain size have been investigated. A model for the spatial spectral density of dielectric permeability variations was suggested. The average scattered intensity was carried out using the small disturbances method. The directional pattern of the scattered field and the extinction coefficient have been obtained. The scattered power and the depolarization ratio fit with the corresponding values obtained in the geometrical optics approximation in the range of its validity.","PeriodicalId":309922,"journal":{"name":"International Conference on Coherent and Nonlinear Optics","volume":"29 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":"128631460","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: 25
Influence of the high-energy ultrashort pulses of the Nd laser on hard tooth tissues Nd激光高能超短脉冲对硬齿组织的影响
International Conference on Coherent and Nonlinear Optics Pub Date : 2010-09-10 DOI: 10.1117/12.880730
E. N. Burluckaya, T. S. Chebakova, V. Khramov
{"title":"Influence of the high-energy ultrashort pulses of the Nd laser on hard tooth tissues","authors":"E. N. Burluckaya, T. S. Chebakova, V. Khramov","doi":"10.1117/12.880730","DOIUrl":"https://doi.org/10.1117/12.880730","url":null,"abstract":"The results of research on repetitively-pulsed action of the laser plasma formed by subnanosecond pulses of the Ndlaser on hard tooth tissues (enamel, dentine) are given. Efficiency of designed laser-plasma technology is shown in comparison with conventional and laser methods.","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":"133533730","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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