Accession Number : AD0746174

Title :   Methods for Obtaining Laser Action at Wavelengths Shorter than 3000 A.

Descriptive Note : Final rept. 1 Jan 69-28 Feb 72,

Corporate Author : STANFORD UNIV CALIF MICROWAVE LAB

Personal Author(s) : Pantell,R. H. ; Puthoff,H. ; Heckt,D. L. ; Yarborough,J. M. ; Callen,W. R.

Report Date : JUN 1972

Pagination or Media Count : 50

Abstract : The objective of this work is to obtain an ultraviolet source using Cerenkov radiation. Both the spontaneous and stimulated Cerenkov effects are studied theoretically and experimentally, to determine their feasibility as uv sources. From a classical analysis of the spontaneous Cerenkov effect a brightness formula is derived for a relativistic electron beam moving through a dielectric of finite thickness and sufferint no collisions. The analysis is extended to include the effects of coulomb scattering from electron-atom collisions. The stimulated Cerenkov effect is analyzed classically from the Boltzmann and wave equations. The calculation follows the TWT (Traveling Wave Tube) analysis. From the analysis an experimental device was designed using a quartz Fabry-Perot resonator. (Author)

Descriptors :   (*LASERS, ULTRAVIOLET RADIATION), CERENKOV RADIATION, ELECTRON BEAMS, BRIGHTNESS, GAIN, QUARTZ

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE