Accession Number:

ADD012374

Title:

Method of Fabricating High Efficiency Binary Planar Optical Elements.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

Report Date:

1986-04-16

Pagination or Media Count:

43.0

Abstract:

The high diffraction efficiency regime of binary gratings occurs at periodicities on the order of a wavelength in order to produce grating which diffract radiation with efficiencies of greater than 90, a fabrication procedure is disclosed which uses holographic and very large scale integration techniques which allow fine control over the periodicity and depth parameters to produce binary planar optical elements having a ratio of lambdaT greater than one where lambda equals the wavelength of an illuminating wavefront, and T equals the grating periodicit. Additionally, the disclosed process produces high optical quality diffractive elements with phase precision of as high as lambda100. These diffractive elements include laser beam multiplexers, beam profile shapers, and binary lenses which are lossless optical transfer functions. Patent applications

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE