Accession Number:

AD0649969

Title:

ABLATING WALL ANNULAR FLASH LAMP.

Descriptive Note:

Final rept., Feb 66-Jan 67,

Corporate Author:

TRW SYSTEMS REDONDO BEACH CALIF

Report Date:

1967-03-01

Pagination or Media Count:

103.0

Abstract:

A quartz ablating laser pump was constructed and up to 25 kj energy was discharged into it from a pulse forming network with resultant power, current and voltage shapes which closely approximated rectangular 1 msec pulses. The pumps were used to pump ruby and neodymium laser crystals. A quartz ablating repetition rate lamp was constructed and operated at rep rates up to 30 pulses per second and a power dissipation up to 2.4 kw lamp operation was for at least a minute. In addition, the lamp was used to continuously excite a 14 inch diameter by 3 inch neodymium crystal at rep rates up to 6 pps. The ablating lamp research was a continued study of the plasma physical characteristics of Plexiglas and quartz ablating lamps. The latter lamp was tested with Plexiglas and quartz center rods and without a center rod. Quartz ablating lamps were used to irradiate several rare-earth doped laser crystals. Laser emission below 1.1 microns was observed from some of these rods. In particular, emission at 8465 plus or minus 25 A was obtained from a CaF2 10 ErF3, 0.5 TmF3 crystal this emission had never before been obtained using standard flash lamps. Finally, the maximum radiative efficiency of a 30 inch long quartz ablating lamp with a pulse duration of 35 microsec was found to be about 30. Author

Subject Categories:

  • Lasers and Masers
  • Air Conditioning, Heating, Lighting and Ventilating
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE