Nonlinear spectroscopy and applications: Time-resolved nonlinear spectroscopy of silicon nanocrystals

机译：非线性光谱学和应用：硅纳米晶体的时间分辨非线性光谱学

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We review results we obtained by nonlinear time-resolved laser spectroscopy of silicon nanocrystals. The results of photoluminescence measurements on the femtosecond to microsecond time scales and of the picosecond pump and probe absorption measurements indicate the important role of carrier trapping into nanocrystals surface states and of Auger process in photoexcited carrier relaxation and recombination. The optical response of assemblies of silicon nanocrystals was found to be strongly dependent on the wavelength of the excitation light. The relation between microscopic carrier processes and optical nonlinear properties of the material as well as the impact on possible development of silicon laser are discussed.

机译：我们回顾了通过非线性时间分辨硅纳米晶体的时间分辨光谱获得的结果。在飞秒到微秒级的光致发光测量结果以及皮秒泵浦和探针吸收测量结果表明，载流子俘获进入纳米晶体表面状态以及俄歇过程在光激发载流子弛豫和重组中的重要作用。发现硅纳米晶体的组件的光学响应强烈地取决于激发光的波长。讨论了微观载流子工艺与材料的光学非线性特性之间的关系，以及对硅激光器可能发展的影响。

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来源
《Nonlinear Optics Applications II; Proceedings of SPIE-The International Society for Optical Engineering; vol.6582》|2007年|65820N.1-65820N.11|共11页
会议地点 Prague(CZ)
作者
P. Maly; K. Neudert; K. Zidek; M. Bittner; F. Trojanek;
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作者单位

Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 16 Prague 2, Czech Republic;

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会议组织
原文格式 PDF
正文语种 eng
中图分类应用光学;
关键词
optical nonlinearities; ultrafast laser spectroscopy; silicon nanocrystals;

机译：光学非线性超快激光光谱硅纳米晶体;

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Nonlinear spectroscopy and applications: Time-resolved nonlinear spectroscopy of silicon nanocrystals

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