1. 27-[mu]m atomic argon laser parameters in fission-fragment excited He/Ar and He/Ne/Ar gas mixtures

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.245566· OSTI ID:5596461

Hebner, G A; Hays, G N ^[1]

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1. Sandia National Labs., Albuquerque, NM (United States)

Power efficiency of the fission-fragment excited atomic argon laser operating on the 1.27-[mu]m (3d[prime][3/2/][sub 1]--4p[prime][3/2][sub 1]) argon transition as a function of pump power, gas mixture, and pressure is discussed. Maximum measured power efficiency was 1.1 [+-] 0.3% for a gas pressure of 1,300 torr and a He/Ar ratio of 99.88/0.12. Neon addition to the He/Ar gas mixture increased both the energy deposited in the gas and the energy output without decreasing efficiency for a neon gas fraction of less than 0.5. Small-signal gain and saturation intensity is between 0.15--0.27%/cm and 25--200 W/cm[sup 2] for pump rates of 7.5--30 W/cm[sup 3] in He/Ar and He/Ne/Ar gas mixtures. The laser threshold as a function of total pressure and argon concentration is presented.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5596461
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States) Vol. 29:8; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ARGON
DISPERSIONS
EFFICIENCY
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FISSION FRAGMENTS
FLUIDS
GAS LASERS
GASES
HELIUM
LASERS
MIXTURES
NEON
NONMETALS
NUCLEAR FRAGMENTS
PRESSURE DEPENDENCE
QUANTUM EFFICIENCY
RARE GASES