Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown

N. Hosoya, M. Nagata, I. Kajiwara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper proposes a method of acoustic testing based on a point source generated by laser-induced breakdown in the air. A high-power Nd: YAG pulse laser is used in this system for generating the laserinduced breakdown in acoustic fields. Plasma formation can be realized by the laser-induced breakdown if the local intensity of the laser beam reaches 1015 W/m2. The shock wave that is yielded by consuming a part of the plasma energy becomes a sound source. Assuming that the laser beam is focused to a small volume through a convex lens and the sound source by the laser-induced breakdown has nondirectional property, it is possible to create a point source with this technique. Securing the laser light path installs no device for acoustic excitation in acoustic fields.

Original languageEnglish
Title of host publicationInternational Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012
Subtitle of host publicationInternational Conference on Uncertainty in Structure Dynamics
PublisherKatholieke Universiteit Leuven
Pages49-58
Number of pages10
ISBN (Print)9781622768257
Publication statusPublished - 2012 Jan 1
Event25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012 - Leuven, Belgium
Duration: 2012 Sep 172012 Sep 19

Publication series

NameInternational Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics
Volume1

Conference

Conference25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012
CountryBelgium
CityLeuven
Period12/9/1712/9/19

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics

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  • Cite this

    Hosoya, N., Nagata, M., & Kajiwara, I. (2012). Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown. In International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics (pp. 49-58). (International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics; Vol. 1). Katholieke Universiteit Leuven.