Time-resolved imaging of GHz acoustic vibrations at arbitrary frequencies using asynchronous periodic probe laser pulses

被引：0

作者：

Matsuda, Osamu ^{[1
]}

Ueno, Shohei ^{[1
]}

Tomoda, Motonobu ^{[1
]}

Otsuka, Paul H. ^{[1
]}

Wright, Oliver B. ^{[2
,3
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Div Appl Phys, Sapporo, Hokkaido 0608628, Japan

[2] Hokkaido Univ, Sapporo, Hokkaido 0600808, Japan

[3] Osaka Univ, Grad Sch Engn, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

来源：

APPLIED PHYSICS LETTERS | 2024年 / 125卷 / 05期

基金：

日本学术振兴会;

关键词：

INTERFEROMETER; WAVES;

D O I：

10.1063/5.0218494

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a technique for imaging gigahertz surface acoustic waves in the time domain at arbitrary frequencies, in which acoustic waves are excited asynchronously to the optical probe pulse train used to detect them. We apply this approach to the two-dimensional imaging of electrically excited single-frequency surface acoustic waves on a GaAs substrate with a deposited interdigital transducer. This technique significantly increases the possible fields of application for gigahertz acoustic wave device imaging.

引用

页数：5

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