Efficient XeCl laser with a semiconductor opening switch in a pump oscillator: Theory and experiment

Journal Article · Mon Apr 30 00:00:00 EDT 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N04ABEH013253· OSTI ID:21466647

Bychkov, Yu I; Panchenko, Aleksei N; Tarasenko, Viktor F; Tel'minov, A E; Yampol'skaya, S A; Yastremskii, A G ^[1]

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1. Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation)

The parameters of laser radiation and kinetic processes of plasma formation and production of inverse population are studied. Electrophysical processes proceeding in a feed circuit containing a semiconductor opening switch and intermediate inductive energy storage are also considered. It is shown that the semiconductor opening switch controls the amount of energy in the inductive storage, and a high-voltage short prepulse with a peak pump power density of {approx}1 MW cm{sup -3} appearing during the current interruption can produce a volume-discharge plasma and create the inverse population for the time {approx}10 ns, providing the conditions for efficient pumping of the active medium from the main capacitor. The time dependences of the pump and emission powers, the concentrations of electrons, excited xenon atoms, HCl(v) molecules in excited vibrational states and of the ionisation, recombination, and attachment rates are calculated. Kinetic processes determining the parameters of laser radiation are analysed. The output energy up to 1.0 J is obtained for 90-ns (FWHM) pulses with the efficiency up to 4.0% with respect to the pump energy. The maximum output power was 11 MW for the lasing efficiency of 4.7% with respect to the pump power. The calculated and experimental time dependences of the voltage across the laser gap, discharge current, and output power are in good agreement. (lasers)

• OSTI ID: 21466647
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 37, Issue 4; Other Information: DOI: 10.1070/QE2007v037n04ABEH013253; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAPACITORS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRONS
ENERGY STORAGE
HYDROCHLORIC ACID
IONIZATION
LASER RADIATION
LASERS
MOLECULES
OSCILLATORS
PLASMA PRODUCTION
POPULATION INVERSION
POWER DENSITY
PUMPING
RECOMBINATION
SEMICONDUCTOR MATERIALS
SEMICONDUCTOR SWITCHES
TIME DEPENDENCE
VIBRATIONAL STATES
XENON
XENON CHLORIDES
CHLORIDES
CHLORINE COMPOUNDS
CURRENTS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EQUIPMENT
EXCITED STATES
FERMIONS
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
LEPTONS
MATERIALS
NONMETALS
RADIATIONS
RARE GAS COMPOUNDS
RARE GASES
SEMICONDUCTOR DEVICES
STORAGE
SWITCHES
XENON COMPOUNDS