An Optical Heterodyne Method for Measurement of the Raman-Nath Parameter of Ultrasound
説明
<jats:p> An optical heterodyne method is presented for measuring the Raman-Nath parameter of ultrasound. A light beam passes through a phase grating induced by ultrasound and then is recombined with another light with frequency shifting. The interference distribution of the two light beams is measured by a photodetector placed in the Fresnel region. The Raman-Nath parameter is extracted from the beat signal with the frequency component centered at the difference of the two light beams. A principle is described and favorably compared with experimental results for narrow-band pulsed ultrasound. </jats:p>
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 21 (8A), L505-, 1982-08-01
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360566396791193856
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- NII論文ID
- 210000022205
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- ISSN
- 13474065
- 00214922
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- データソース種別
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