LASER DAMAGE TO RV ANTENNA WINDOWS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$486,000.00
Award Year:
1986
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
2177
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Physical Sciences, Inc.
20 New England Business Center, Andover, MA, 01810
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Ashok Modak
(617) 475-9030
Business Contact:
() -
Research Institution:
n/a
Abstract
THE PROPOSED STUDY WILL INVESTIGATE DAMAGE TO RV ANTENNA WINDOWS BY PULSED AND CW LASERS AT 0.35, 0.53, 1.6, AND 3.8 MICROMETERS. THE STUDY WILL CONSIST OF MEASURING THE TRANSMITTANCE, REFLECTANCE, ABSORPTION AND SCATTERING IN THE WINDOWS AT THE WAVELENGTHS OF INTEREST AND MEASURING THE SURFACE AND INDEPTH PHENOMENOLOGY (E.G. ABLATION SPALLING, EXFOLIATION, CRACKING) IN WINDOWS EXPOSED TO PULSED XEF, ND:GLASS AND CW, DF LASERS. THESE MEASUREMENTS WILL BE COUPLED TO THEORETICAL MODELS OF PULSED AND CW LASER INTERACTIONS WITH (THREE-DIMENSIONAL) FUSED SILICA TYPE MATERIALS TO ELUCIDATE DAMAGE MECHANISMS AND TO PERFORM THEORY/DATA COMPARISONS. THE COMPARISONS ARE EXPECTED TO SUGGEST IMPROVED METHODS OF HARDENING RV WINDOW MATERIALS TO LASER IRRADIATION. THE OBSERVED DAMAGE MECHANISMS WILL BE USED TO ESTIMATE PERFORMANCE DEGRADATION OF RV ANTENNAS, RV ANTENNA WINDOWS AND DEGRADATION IN CEP. A MAJOR MANUFACTURER AND INVENTOR OF RV ANTENNA WINDOW MATERIALS WILL BE A CONSUL-TANT TO THE PROPER AND SHALL ALSO SUPPLY THE PROPOSER WITH EXISTING STATE-OF-THE-ART WINDOW MATERIALS FOR TESTING AND ANALYSIS.

* information listed above is at the time of submission.

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