Investigations into the Feasibility of High Power Laser Window Materials
Abstract
The principle work described in this report is the completion of a laser window test facility. It has been used to test the optical distortion of a diamond windows while transmitting focused radiation from a 10.6 micrometers laser. The continuous power exceeded 18 kilowatts. The average intensity over the focal spot is estimated to be 2,500,000 watts/sq. cm. The optical distortion produced in the windows was measured with an interferometer and found to be 1/2 visible light fringe or less. Some of the other results described in this report are the calibration of the laser window test facility, the measurement of the 10.6 micrometer, c.w. beam intensity profile at various distances from the mirror focus, a description of the calorimeter used to measure power, a description of the holder used to position and cool diamond windows, measurement of the absorption of two diamond plates that have been tested as windows.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 1975
- Accession Number
- ADA021468
Entities
People
- Jacob L. Zar