Optical apparatus for forming correlation spectrometers and optical processors

Butler, Michael A; Ricco, Antonio J; Sinclair, Michael B; Senturia, Stephen D

Title: Optical apparatus for forming correlation spectrometers and optical processors

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872292

Butler, Michael A ^[1]; Ricco, Antonio J ^[1]; Sinclair, Michael B ^[1]; Senturia, Stephen D ^[2]

Albuquerque, NM
Brookline, MA

Optical apparatus for forming correlation spectrometers and optical processors. The optical apparatus comprises one or more diffractive optical elements formed on a substrate for receiving light from a source and processing the incident light. The optical apparatus includes an addressing element for alternately addressing each diffractive optical element thereof to produce for one unit of time a first correlation with the incident light, and to produce for a different unit of time a second correlation with the incident light that is different from the first correlation. In preferred embodiments of the invention, the optical apparatus is in the form of a correlation spectrometer; and in other embodiments, the apparatus is in the form of an optical processor. In some embodiments, the optical apparatus comprises a plurality of diffractive optical elements on a common substrate for forming first and second gratings that alternately intercept the incident light for different units of time. In other embodiments, the optical apparatus includes an electrically-programmable diffraction grating that may be alternately switched between a plurality of grating states thereof for processing the incident light. The optical apparatus may be formed, at least in part, by a micromachining process.

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Research Organization:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: US 5905571

OSTI ID:: 872292

Country of Publication:: United States

Language:: English

References (23)

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Title: Optical apparatus for forming correlation spectrometers and optical processors

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