Spectrum of shock waves produced by an optical discharge at a high laser-pulse repetition rate

Journal Article · Tue Apr 30 04:00:00 EDT 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N04ABEH002193· OSTI ID:21450506

Tishchenko, V N; Grachev, Gennadii N; Smirnov, A L ^[1]; Zapryagaev, V I; Sobolev, A V ^[2]

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1. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)
2. Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

The acceleration of a plasma jet by an optical pulsating discharge is studied. The optical discharge generated periodic shock waves or shock waves combined in periodic trains. For a pulse repetition rate f > 50 kHz, the line at frequency f dominated in the spectrum of periodic waves. The spectrum of trains following with the frequency F{sub 0} || f contained an ultrasonic component and a low-frequency component. The trains produces a strong acoustic effect. The average power of the waves amounted to 160 W, and the conversion efficiency of laser radiation to shock waves was {approx}10% - 25%. (interaction of laser radiation with matter. laser plasma)

• OSTI ID: 21450506
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 32; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ALPHA DECAY RADIOISOTOPES
CONVERSION
EFFICIENCY
ELECTROMAGNETIC RADIATION
EVEN-EVEN NUCLEI
FREQUENCY RANGE
INTERMEDIATE MASS NUCLEI
ISOTOPES
KHZ RANGE
LASER RADIATION
MILLISECONDS LIVING RADIOISOTOPES
NUCLEI
PERIODICITY
PLASMA JETS
PULSES
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHOCK WAVES
SPECTRA
TUNGSTEN 160
TUNGSTEN ISOTOPES
VARIATIONS