Long-pulse, broadband-Xe(/sub 2/ -fluorescence excitation of OCSe: Initiation of the Se(/sup 1/S. -->. /sup 3/P) laser and implications for large-system design

Journal Article · Tue Sep 01 04:00:00 EDT 1981 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.329475· OSTI ID:6254934

Trott, W M; Woodworth, J R; Rice, J K; Miller, C K

The formation and loss of Se(/sup 1/S) excited states have been examined using long-pulse (0.7--1.0 ..mu..sec), broadband (13 nm FWHM)-Xe(/sub 2/- fluorescence photodissociation of carbonyl selenide. Experimental data are compared to results of a computer code that models the Xe(/sub 2/ radiation transport and Se(/sup 1/S) kinetics. The effective quantum yield for Se(/sup 1/S) production over the wavelength interval 160--180 nm has been found to be near 0.6. The observed Se(/sup 1/S) decay rates have been used in conjunction with the code to predict the effects of excitation pulse length on the efficiency of the selenium laser system. Laser oscillation has been demonstrated for the Se(/sup 1/S/sub 0/..-->../sup 3/P/sub 1/) transition in a long-active-length (54 cm) optical cavity. Oscillator performance was characterized as a function of OCSe pressure. The optimized laser output was 1.3 mJ, a value consistent with the Se(/sup 1/S) kinetics and laser cavity conditions.

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• OSTI ID: 6254934
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:9; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CARBONYLS
COMPUTER CODES
DESIGN
DISSOCIATION
EFFICIENCY
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
FLUORESCENCE
GAS LASERS
GASES
KINETICS
LASER CAVITIES
LASERS
LUMINESCENCE
MATHEMATICAL MODELS
NONMETALS
PRESSURE DEPENDENCE
PULSES
RADIATION EFFECTS
RADIATION TRANSPORT
RARE GASES
SELENIUM COMPOUNDS
WAVELENGTHS
XENON