LASER DEVICES EXPLORATORY INVESTIGATION.
Abstract
The fabrication and testing of sapphire quarterwave plates for use with ruby in a novel longitudinal mode selector were completed. Testing of the elliptical pumping cavity for cw operation was begun. A new setup made possible the growth of doped lanthanum trifluoride crystals of relatively high quality. Flame fusion techniques were used to make single crystal Gd2O3. The optical spectra of the newly grown LaF3:Pr(3+) and Gd2O3 (which contained europium and samarium impurities) were obtained. Microwave spectra of chromium-doped LaF3 were observed, and work continued on the identification of the resonances observed in terbium-doped LaF3. Anomalies in the emission angles of anti-Stokes cones from various stimulated Raman scattering (SRS) materials were measured, and possible explanations examined experimentally. The most recent measurements show that both Stokes and anti-Stokes cones in typical SRS materials have angle spreads greater than 1 degree and wavelength spreads of the order of 20 Angstrom units. (See also AD-429 856). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1964
- Accession Number
- AD0600267
Entities
People
- H. V. Winston
Organizations
- HRL Laboratories