Light wave propagation, cavity self-formation and lasing in strongly scattering media

强散射介质中的光波传播、空腔自形成和激光发射

• 批准号: 9877113
• 负责人: Hui Cao
• 金额: $ 48万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2003-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9877113&HistoricalAwards=false
• 关键词: Light; wave; propagation; cavity; self

The proposal is to investigate lasing processes in polycrystalline or nano-crystalline ZnO and GaN particle semiconductors that the group discovered recently. It is postulated that formation of closed loops and photon locallization are possible mechanisms for lasing. Proposed research activities include: (1) near-field microscopic measurement of the intensity distribution, (2) numerical simulation of lightwave propagation and cavity formation in random media, and (3) fabrication of optoelectronic devices such as waveguides and lasers with semiconductor polycrystalline and nano-particle films on various substrates. If successful, it may have a major impact on materials research of nano-particle films and on understanding of the physics of nano-structures that may lead to novel device applications.

该提案旨在研究该小组最近发现的多晶或纳米晶ZnO和GaN颗粒半导体中的激光过程。据推测，闭环的形成和光子局域化是可能的激光机制。拟议的研究活动包括：（1）强度分布的近场显微测量，（2）随机介质中光波传播和空腔形成的数值模拟，以及（3）在各种衬底上用半导体多晶和纳米颗粒薄膜制造波导和激光器等光电器件。如果成功的话，它可能会对纳米粒子薄膜的材料研究和对纳米结构物理学的理解产生重大影响，从而可能导致新的器件应用。