Accession Number : ADA135793

Title :   Radiative Collisional Laser Feasibility Demonstration.

Descriptive Note : Final rept. 16 Nov 81-15 Feb 83,


Personal Author(s) : Tang,K Y ; Tilton,R A ; Wells,W E , Jr ; Downes,L W ; Marcum,S D

PDF Url : ADA135793

Report Date : 07 Dec 1983

Pagination or Media Count : 58

Abstract : Collisional radiative process between metastable state He and ground state N2 has investigated through two separate experiments: gain/absorption in electron-beam excited He/N2 gas mixtures, and change of He metastable density in the presence of external photon flux. No net gain was observed in He/N2 system as it was presumably overwhelmed by the background absorption. However, the preliminary results of our He metastable density measurement gives strong evidence for existence of collisional radiative process. (Author)

Descriptors :   *Laser amplifiers, *Laser pumping, *Test and evaluation, Radiative transfer, Feasibility studies, Electron beams, Gas dynamics, Metastable state, Ground state, Flux density, Experimental data, Gain, Helium, Nitrogen, Excitation, Kinetics, Photons, Gas flow, Absorption spectra, Collisions, Excimers, Energy transfer

Subject Categories : Lasers and Masers
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE