High Energy Laser Beam Pattern Analysis
Abstract
Two patterns burned in Plexiglas by the Mid Infrared Advanced Chemical Laser (MIRACL) were converted to optical images and Fourier transformed optically. One of the patterns was burned before a beam quality upgrade effort, and the other one after. The Fourier spectra were examined for evidence of variations in the laser gain medium and other diffraction sources in the optical system. To date, no specially useful information has been identified from this study, but the technique shows promise for future use under appropriate conditions. The novel method of converting the varying depth of the burn to photographic density is described. This same method could be used to achieve a nonmechanical digitization of a burn pattern for digital image processing. (Author) (jd)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 1990
- Accession Number
- ADA228016
Entities
People
- George L. Hall
Organizations
- United States Naval Research Laboratory