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首页> 外文会议>Symposium on Quantum Confined Semiconductor Nanostructures Dec 2-5, 2002 Boston, Massachusetts, U.S.A. >Semiconductor nanocrystal based saturable absorbers for optical switching applications
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Semiconductor nanocrystal based saturable absorbers for optical switching applications

机译：基于半导体纳米晶体的可饱和吸收体，用于光开关应用

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摘要

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：该文献提供了开发用于光交换应用的半导体纳米晶体掺杂薄膜的努力的实验和理论结果。已经制备了掺杂有高质量PbS和PbSe纳米晶体的薄膜。将吸收光谱的测量结果与理论预测值进行比较。使用用于处理包含薄纳米晶掺杂层的多层介电结构的光学性质的一般理论框架。一个简单的模型（球中的粒子）被用作起点，但是，更复杂的模型（例如基于k.p理论的模型或适合实验的模型）可以轻松地并入。原型微米级的Fabry-Perot光学腔已构建并进行了讨论。提出了将半导体纳米晶体材料引入光腔后，这种结构的开关行为的理论预测。这篇论文的完整版本可在Evident Technologies的网站上找到。

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