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

Naoki 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: International Conference on Uncertainty in Structure Dynamics
PublisherKatholieke Universiteit Leuven
Pages49-58
Number of pages10
Volume1
ISBN (Print)9781622768257
Publication statusPublished - 2012
Event25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012 - Leuven
Duration: 2012 Sep 172012 Sep 19

Other

Other25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012
CityLeuven
Period12/9/1712/9/19

Fingerprint

point sources
breakdown
Acoustics
acoustics
Lasers
Acoustic fields
Testing
lasers
Laser beams
Acoustic waves
Plasmas
laser beams
acoustic excitation
Shock waves
Light sources
Laser pulses
Lenses
yttrium-aluminum garnet
shock waves
lenses

ASJC Scopus subject areas

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

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 (Vol. 1, pp. 49-58). Katholieke Universiteit Leuven.

Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown. / Hosoya, Naoki; Nagata, M.; Kajiwara, I.

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, 2012. p. 49-58.

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

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. vol. 1, Katholieke Universiteit Leuven, pp. 49-58, 25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012, Leuven, 12/9/17.
Hosoya N, Nagata M, Kajiwara I. 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. Vol. 1. Katholieke Universiteit Leuven. 2012. p. 49-58
Hosoya, Naoki ; Nagata, M. ; Kajiwara, I. / Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown. 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, 2012. pp. 49-58
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