Accession Number : ADD011660

Title :   Bandpass Filter Formed by Serial Gratings Operating in a Wood's Anomaly Region.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Peterson,P R ; Gavrielides,A

Report Date : 05 Mar 1985

Pagination or Media Count : 6

Abstract : A bandpass filter is comprised by a plurality of reflection gratings operating in a Wood's anomaly region and arranged in serial relationship. Specifically, the gratings are serially arranged in two substantially parallel rows with the gratings in the first row offset laterally from the gratings in the second row. Further, the input to each grating is at substantially the same angle of incidence such that the output of one grating is the direct input to the next succeeding one of the gratings. (Author)

Descriptors :   *PATENTS, *BANDPASS FILTERS, *INFRARED EQUIPMENT, *GRATINGS(SPECTRA), ANGLE OF INCIDENCE, POLARIZATION, LIGHT, SEQUENCES, ANOMALIES, OUTPUT, REFLECTION, INPUT

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE