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	Method for generation of tunable far infrared radiation from two-dimensional plasmons
	KATZ, JOSEPH
	1989-10-17
著作权人	CALIFORNIA INSTITUTE OF TECHNOLOGY, A CORP. OF CA
专利号	US4874953
国家	美国
文献子类	授权发明
其他题名	Method for generation of tunable far infrared radiation from two-dimensional plasmons
英文摘要	Tunable far infrared radiation is produced from two-dimensional plasmons in a heterostructure, which provides large inversion-layer electron densities at the heterointerface, without the need for a metallic grating to couple out the radiation. Instead, a light interference pattern is produced on the planar surface of the heterostructure using two coherent laser beams of a wavelength selected to be strongly absorbed by the heterostructure in order to penetrate through the inversion layer. The wavelength of the far infrared radiation coupled out can then be readily tuned by varying the angle between the coherent beams, or varying the wavelength of the two interfering coherent beams, thus varying the periodicity of the photoconductivity grating to vary the wavelength of the far infrared radiation being coupled out.
公开日期	1989-10-17
申请日期	1988-10-06
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/34857]
专题	半导体激光器专利数据库
作者单位	CALIFORNIA INSTITUTE OF TECHNOLOGY, A CORP. OF CA
推荐引用方式 GB/T 7714	KATZ, JOSEPH. Method for generation of tunable far infrared radiation from two-dimensional plasmons. US4874953. 1989-10-17.

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