OPTICAL OBSERVATION OF FINITE AMPLITUDE ULTRASONIC FIELDS.

Yukihiro Nishida, Ichiro Asada, Masato Nakajima, Shinichi Yuta

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

When a coherent light is passed through an ultrasonic field of finite amplitude, the diffraction spectrum has an asymmetrical form around the Oth order component due to the harmonic generation corresponding to the waveform distortion in the propagation of ultrasound. In the paper, a method is proposed which can reconstruct the original ultrasonic waveform by a simple measurement and calculation. The method is to separate the symmetric and antimetric components of the diffracted light by calculating the sum and difference of the positive- and negative-order components, and to determine the amplitude and phase from the sum and the difference, respectively. Using the proposed method, the CT techniques are applied to the optically measured data which are a line-integral of the ultrasonic pressure.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume70
Issue number5
Publication statusPublished - 1987 May
Externally publishedYes

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Ultrasonics
Harmonic generation
Diffraction

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

OPTICAL OBSERVATION OF FINITE AMPLITUDE ULTRASONIC FIELDS. / Nishida, Yukihiro; Asada, Ichiro; Nakajima, Masato; Yuta, Shinichi.

In: Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi), Vol. 70, No. 5, 05.1987, p. 27-35.

Research output: Contribution to journalArticle

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