Optical gain medium having doped nanocrystals of semiconductors and also optical scatterers

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	Optical gain medium having doped nanocrystals of semiconductors and also optical scatterers
其他题名	Optical gain medium having doped nanocrystals of semiconductors and also optical scatterers
	LAWANDY, NABIL R.
	1995-07-18
专利权人	BROWN UNIVERSITY RESEARCH FOUNDATION
公开日期	1995-07-18
授权国家	美国
专利类型	授权发明
摘要	An optical gain medium comprises a multi-phase system wherein: a first phase is an electromagnetic radiation emitting and amplifying phase (16) that is comprised of doped semiconductor nanocrystals; a second phase is an electromagnetic radiation scattering phase (14); and a third phase is a substantially transparent (at the wavelengths of interest) matrix phase (12). The emission phase may consist of ZnS nanoparticles that are doped with Mn2+, the scattering phase may comprise TiO2 or Al2O3 nanoparticles, and the matrix phase may comprise a glass or polymer body, layer or coating. At least one dimension of a body, layer, or coating comprised of the gain medium may be less than a scattering length associated with the scattering phase.
其他摘要	光学增益介质包括多相系统，其中：第一相是电磁辐射发射和放大相（16），其由掺杂的半导体纳米晶体组成;第二阶段是电磁辐射散射阶段（14）;第三相是基本透明的（在感兴趣的波长处）基质相（12）。发射相可以由掺杂有Mn 2+的ZnS纳米颗粒组成，散射相可以包括TiO 2或Al 2 O 3纳米颗粒，并且基质相可以包括玻璃或聚合物主体，层或涂层。由增益介质组成的主体，层或涂层的至少一个维度可小于与散射相关联的散射长度。
申请日期	1994-03-18
专利号	US5434878
专利状态	失效
申请号	US08/210356
公开（公告）号	US5434878
IPC 分类号	H01S3/06 \| H01S5/04 \| H01S5/30 \| H01S5/00 \| H01S3/091 \| H01S3/17 \| H01S3/18 \| H01S3/20
专利代理人	-
代理机构	PERMAN & GREEN
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/47782
专题	半导体激光器专利数据库
作者单位	BROWN UNIVERSITY RESEARCH FOUNDATION
推荐引用方式 GB/T 7714	LAWANDY, NABIL R.. Optical gain medium having doped nanocrystals of semiconductors and also optical scatterers. US5434878[P]. 1995-07-18.

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