Parametric Mixing Effects in Surface Acoustic Waves Caused by Surface Perturbation

This paper presents a new phenomenon in the parametric mixing effects of a surface acoustic wave (SAW). When two SAWs were perturbed by a very small amount of liquid above the waveguide surface, generation of the SAW at the sum frequency was increased in amplitude about 30 to 40 dB compared with the...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 28; no. S1; p. 123
Main Authors Nakagawa, Yasuhiko, Terunuma, Noboru, Yamashita, Katsumi
Format Journal Article
LanguageEnglish
Published 01.01.1989
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Summary:This paper presents a new phenomenon in the parametric mixing effects of a surface acoustic wave (SAW). When two SAWs were perturbed by a very small amount of liquid above the waveguide surface, generation of the SAW at the sum frequency was increased in amplitude about 30 to 40 dB compared with the case of no perturbation. We propose a qualitative model which explains this phenomenon.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAPS.28S1.123