One Meter KrF Laser System

reportActive / Technical Report | Accession Number: ADA069053 | Open PDF

Abstract:

This interim technical report covers DARPA-sponsored research directed towards high power rare gas-halide lasers. The key issues being addressed are kinetics leading to laser medium gain and absorption, laser energy extraction, upper and lower laser state kinetics, intrinsic laser efficiency, specfic energy, and energy scaling. By operating at elevated temperatures and e-beam pumped XeF laser intrinsic efficiency of 5.5 was obtained at a specific pulse energy of 5 J1. The increase in efficiency is attributed to improved energy extraction from the XeF B vibrational manifold and to decreased lifetime of the XeF ground state. Detailed comparisons were made between KrF laser experiments and model calculations. Excellent agreement was obtained. The comparison also suggests the importance of KrF vibrational rotational relaxation and B and C state mixing on laser performance at pump intensities exceeding 1,000,000 Wcu cm.

Author(s):
Mangano, J. A. ; Hsia, J. C. ; Jacob, J. H. ; Rokni, M. ; Duzy, C.
Author Organization(s):
AVCO EVERETT RESEARCH LAB INC EVERETT MA
Descriptive Note:
Semi-annual rept. 24 Nov 1977-24 May 1978
Supplementary Note:
DOI: 10.21236/ADA069053
Pagination:
0084

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-76-C-1032, DARPA ORDER-3125
Monitor Series:
DARPA
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_1.2.7_Experimentation; JCA_5.3_Planning
Modernization Areas:
Space; Quantum Science and Computing
Communities of Interest:
Weapons Technologies
Descriptor(s):
*GAS LASERS, *ULTRAVIOLET LASERS, EFFICIENCY, ELECTRON BEAMS, FLUORIDES, HIGH POWER, KINETICS, KRYPTON, LASER PUMPING, MAGNETIC FIELDS, MODELS, RARE GASES, VISIBLE SPECTRA
Field(s)/Group(s):
Lasers and Masers
Keyword(s):
Krypton fluoride lasers, Xenon fluoride lasers
Report Date:
1978 May 24