Presentation 2022-12-22
[Poster Presentation] A method for evaluating acoustic Bragg reflector by GHz pulse echo technique with SiO2 delay line
Keita Kondo, Naoki Ishii, Motoshi Suzuki, Takahiko Yanagitani,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Experimental data of the sole Bragg reflector is difficult to be measured. This is because the property of a piezoelectric layer on Bragg reflector and that of the sole Bragg reflector is measured simultaneously in the standard impedance measurement. In this study, the method to evaluate the acoustic transmission loss for longitudinal wave and shear wave of the sole Bragg reflector by using pulse echo technique with SiO2 delay line is proposed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SMR / Bragg reflector / pulse echo technique / c-Axis tilted ScAlN film
Paper # US2022-65
Date of Issue 2022-12-15 (US)

Conference Information
Committee EA / US
Conference Date 2022/12/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Satellite Campus Hiroshima
Topics (in Japanese) (See Japanese page)
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, etc.
Chair Kenichi Furuya(Oita Univ.) / Kentaro Nakamura(Tokyo Inst. of Tech.)
Vice Chair Tatsuya Kako(NTT) / Junki Ono(Tokyo Metropolitan Univ.) / Yoshikazu Koike(Shibaura Inst. of Tech.) / Yasuaki Watanabe(Tokyo Metropolitan Univ.)
Secretary Tatsuya Kako(NTT) / Junki Ono(Ritsumeikan Univ.) / Yoshikazu Koike(Tohoku Univ.) / Yasuaki Watanabe(Chiba Univ.)
Assistant Masato Nakayama(OSU) / Kouhei Yatabe(Tuat) / Kan Okubo(Tokyo Metropolitan Univ.)

Paper Information
Registration To Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] A method for evaluating acoustic Bragg reflector by GHz pulse echo technique with SiO2 delay line
Sub Title (in English)
Keyword(1) SMR
Keyword(2) Bragg reflector
Keyword(3) pulse echo technique
Keyword(4) c-Axis tilted ScAlN film
1st Author's Name Keita Kondo
1st Author's Affiliation Waseda University/ZAIKEN(Waseda Univ.)
2nd Author's Name Naoki Ishii
2nd Author's Affiliation Waseda University/ZAIKEN(Waseda Univ.)
3rd Author's Name Motoshi Suzuki
3rd Author's Affiliation Waseda University/ZAIKEN(Waseda Univ.)
4th Author's Name Takahiko Yanagitani
4th Author's Affiliation Waseda University/ZAIKEN/JST-CREST/JST-FOREST(Waseda Univ. /JST)
Date 2022-12-22
Paper # US2022-65
Volume (vol) vol.122
Number (no) US-323
Page pp.pp.80-85(US),
#Pages 6
Date of Issue 2022-12-15 (US)