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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 10 — Apr. 1, 2014
  • pp: B153–B158

Laser generation of shock waves in a water suspension with light-absorbing particles

Vira R. Besaga, Andrew P. Maksimyak, and Peter P. Maksimyak  »View Author Affiliations


Applied Optics, Vol. 53, Issue 10, pp. B153-B158 (2014)
http://dx.doi.org/10.1364/AO.53.00B153


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Abstract

We report the generation of shock waves in a disperse medium with absorbing particles of black pigment in the water using continuous laser radiation. As a result of the experimental investigation it was found that the illuminating beam diameter growth at the constant laser power results in the decrease of the signals’ modulation frequencies, improving their stability and increasing their amplitudes. In turn, the decrease of the signal’s modulation frequency is caused by the growth of time, which is needed for heating the medium to the critical temperature of cavitation. Improving the stability and the increase of optical and acoustic signal amplitudes take place, due to the growth of the medium volume and hence the number of pigment particles that participate in cavitation.

© 2014 Optical Society of America

OCIS Codes
(070.1060) Fourier optics and signal processing : Acousto-optical signal processing
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(190.4870) Nonlinear optics : Photothermal effects

History
Original Manuscript: November 18, 2013
Manuscript Accepted: January 21, 2014
Published: March 6, 2014

Citation
Vira R. Besaga, Andrew P. Maksimyak, and Peter P. Maksimyak, "Laser generation of shock waves in a water suspension with light-absorbing particles," Appl. Opt. 53, B153-B158 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-10-B153

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