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Semiconductor nanocrystal based saturable absorbers for optical switching applications

机译：用于光学开关应用的半导体纳米晶体的可饱和吸收器

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This document presents experimental and theoretical results of an effort to develop semiconductor nanocrystal doped thin films for optical switching applications.Films doped with high quality PbS and PbSe nanocrystals have been fabricated.Measurements of the absorption spectra are compared with theoretical predictions.A general theoretical framework for treating the optical properties of multi-layer dielectric structures containing thin nanocrystal doped layers is used.A simple model (the particle-in-a-sphere) is used as a starting point,however,more sophisticated models (such as those based on k.p.theory,or fits to experiment) can easily be incorporated.A prototypical micron-scale Fabry-Perot optical cavity has been constructed and is discussed.Theoretical predictions for the switching behavior of such a structure,upon introduction of the semiconductor nanocrystal material into the optical cavity,are presented.A full-length version of this paper is available at Evident Technologies' web site.
机译：本文献提供了用于开发用于开发用于光学开关应用的半导体纳米晶体掺杂薄膜的实验和理论结果。已经制造了高质量PBS和PBSE纳米晶体的薄膜。与理论预测相比，吸收光谱的衡量。一般理论框架为了处理含有薄的纳米晶体掺杂层的多层介电结构的光学性质。然而，使用简单的模型（粒子 - 粒子）用作起点，然而，更复杂的模型（例如基于那些kptheory或适合实验）可以容易地合并。已经构建了原型微米法布里 - 珀罗光学腔并被讨论。在将半导体纳米晶体材料引入时，对这种结构的切换行为的理论预测展示了光学腔。本文的全长版本可见于Apidist Technologies的W. EB网站。

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