Propagation of Light in Colloidal Crystals: Photonic Band Structure and Localization

光在胶体晶体中的传播：光子能带结构和局域化

• 批准号: 9113618
• 负责人: George Watson
• 金额: $ 17.6万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-02-15 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113618&HistoricalAwards=false
• 关键词: Propagation; Light; Colloidal; Crystals; Photonic

This is an experimental investigation of photonic band structure and its effects on localization of light in disordered optical superlattices. Photonic band structure will be measured in the visible part of the electromagnetic spectrum in colloidal crystals. In crystals with high refractive index contrast, photon localization will be pursued by introduction of appropriate disorder. Picosecond time-of-flight, coherent backscattering, and speckle spectroscopy will be among the probes used to examine photon transport in these materials. The results of this research will advance the understanding of localization and transport properties of classical waves in random media as well as electron localization in disordered conductors.

这是对光子晶体能带结构的实验研究 及其对光在无序光学中局域化的影响 超晶格 光子带结构将在 胶体晶体中电磁波谱的可见部分。 在具有高折射率对比度的晶体中， 推行本地化的方法， disorder. 皮秒飞行时间，相干后向散射， 散斑光谱学将是用来检查 光子在这些材料中的传输。 这项研究成果 将促进对本地化和运输的理解 随机介质中经典波的性质以及电子 无序导体中的局域化。