Invention Application
US20090046979A1 VARYING REFRACTIVE INDEX OPTICAL MEDIUM USING AT LEAST TWO MATERIALS WITH THICKNESSES LESS THAN A WAVELENGTH
有权
使用至少两个材料的薄型折射率指数光学介质，厚度小于波长
- Patent Title: VARYING REFRACTIVE INDEX OPTICAL MEDIUM USING AT LEAST TWO MATERIALS WITH THICKNESSES LESS THAN A WAVELENGTH
- Patent Title (中): 使用至少两个材料的薄型折射率指数光学介质，厚度小于波长
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Application No.: US12187928Application Date: 2008-08-07
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Publication No.: US20090046979A1Publication Date: 2009-02-19
- Inventor: Yan Zhou , Seng-Tiong Ho
- Applicant: Yan Zhou , Seng-Tiong Ho
- Applicant Address: US CA Pleasanton
- Assignee: Phosistor Technologies, Inc.
- Current Assignee: Phosistor Technologies, Inc.
- Current Assignee Address: US CA Pleasanton
- Main IPC: G02B6/26
- IPC: G02B6/26
Abstract:
An optical medium has a graded effective refractive index with a high maximum refractive index change. The medium is formed using alternating layers of two or more materials having significantly different refractive indices. The thickness of the layers of at least one of the materials is substantially less than the effective light wavelength of interest. The effective index of refraction in a local region within the medium depends on the ratio of the average volumes of the two materials in the local region. A graded index of refraction is provided by varying the relative thicknesses of the two materials.
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