Accession Number : AD0164362

Title :   Electrostatic Spatial Filter for a High Power Laser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Farmer,William M.

Report Date : 28 NOV 1972

Pagination or Media Count : 3

Abstract : The patent describes an electrostatically cooled spatial filter for high powered pulsed lasers. The filter comprises a first lens which focuses a laser beam on a pinhole, and a second lens positioned behind the pinhole to receive the beam. To prevent the laser beam from destroying the pinhole an electric field is applied across the pinhole. This field cools the pinhole and as a result the size of the pinhole is preserved.

Descriptors :   *Lasers, *Optical filters, *Patents, Cooling, Electrostatics

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE