Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-10-02
2000-10-31
Le, Que T.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
359652, H01J 314
Patent
active
061406325
ABSTRACT:
A method for producing a spatially stratified Optical System includes the steps of a) selecting a suitable, spatially stratified profile of index of refraction to achieve an optical system having a desired performance; b) selecting an atomic/molecular species having a suitable index of refraction in a desired operational wavelength band; c) forming sub-micron pellets of the species; and d) placing the pellets into a host material while controlling the density of the placement. The density is varied to achieve a local index of refraction value for the optical system in accordance with the selected stratified profile. The wavelength regime the optical system is designed for is much greater than the characteristic scale of stratification, which in turn is much greater than the spatial size of the pellets. The optical system is much greater than the wavelengths in the wavelength regime.
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Ginsberg Lawrence N.
Le Que T.
McDonnell Douglas Corporation
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