V. N. Tishchenko, V. G. Posukh, A. I. Gulidov, V. I. Zapryagaev, A. A. Pavlov, È. L. Boyarintsev, M. P. Golubev, I. N. Kavun, A. V. Melekhov, L. S. Golobokova, I. B. Miroshnichenko, A. A. Pavlov, A. S. Shmakov, “Criteria for formation of low-frequency sound under wide-aperture repetitively pulsed laser irradiation of solids”, Kvantovaya Elektronika, 2011, Volume 41, Number 10,Pages <nobr>895

This article is cited in 9 papers

Interaction of laser radiation with matter. Laser plasmas

Criteria for formation of low-frequency sound under wide-aperture repetitively pulsed laser irradiation of solids

V. N. Tishchenko^a, V. G. Posukh^a, A. I. Gulidov^b, V. I. Zapryagaev^b, A. A. Pavlov^b, È. L. Boyarintsev^a, M. P. Golubev^b, I. N. Kavun^b, A. V. Melekhov^a, L. S. Golobokova^a, I. B. Miroshnichenko^a, A. A. Pavlov^b, A. S. Shmakov^b

^a Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
^b Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: The criteria for merging shock waves formed by optical breakdowns on the surface of solids have been investigated. Targets made of different materials were successively irradiated by two CO₂-laser pulses with energies up to 200 J and a duration of ~1 μs. It is shown that the criteria under consideration can be applied to different targets and irradiation regimes and make it possible to calculate the parameters of repetitively pulsed laser radiation that are necessary to generate low-frequency sound and ultrasound in air.

PACS: 52.35.Tc, 62.50.Ef, 42.55.Lt

Received: 24.02.2011
Revised: 01.08.2011