Accession Number:

ADD012971

Title:

Dielectric Air-Interface Plasma Optical Power Limiter.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1986-07-01

Pagination or Media Count:

6.0

Abstract:

The present invention is a device for limiting the power or energy output of a laser system. In particular, the present invention relates to devices which create a plasma to shield sensitive components of laser systems from high energy laser bursts. A dielectric air-interface plasma optical power limiter is made by placing a plurality of plasma initiation sites on the surface of an optical component, such as a mirror or lens. The sites are particles of a material that emits large numbers of free electrons above a threshold power level. The sites are placed on the surface by vapor deposition or any other manner. For some materials, a natural tendency of the material to adhere to the surface is sufficient. The sites are small speckles on the surface and do not form a uniform coating of the surface. Most of the surface area of the optical component is uncovered.

Subject Categories:

  • Optics
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE