Abstract

A scanning homodyne Michelson interferometer is constructed for two-dimensional imaging of high-frequency surface acoustic wave (SAW) fields in SAW devices. The interferometer possesses a sensitivity of $\sim {10}^{-5} \mathrm{nm}/\sqrt{\mathrm{Hz}}$, and it is capable of directly measuring SAW’s with frequencies ranging from 0.5 MHz up to 1 GHz. The fast scheme used for locating the optimum operation point of the interferometer facilitates high measuring speeds, up to 50,000 points/h. The measured field image has a lateral resolution of better than $1 \mathit{\mu }\mathrm{m}$. The fully optical noninvasive scanning system can be applied to SAW device development and research, providing information on acoustic wave distribution that cannot be obtained by merely electrical measurements.

© 2000 Optical Society of America

Silicon-based integrated interferometer with phase modulation driven by surface acoustic waves

Christophe Gorecki, Franck Chollet, Eric Bonnotte, and Hideki Kawakatsu
Opt. Lett. 22(23) 1784-1786 (1997)

Phase-resolved optical coherence tomography and optical Doppler tomography for imaging blood flow in human skin with fast scanning speed and high velocity sensitivity

Yonghua Zhao, Zhongping Chen, Christopher Saxer, Shaohua Xiang, Johannes F. de Boer, and J. Stuart Nelson
Opt. Lett. 25(2) 114-116 (2000)

Geometrical cross-sectional imaging by a heterodyne wavelength-scanning interference confocal microscope

Takashi Fukano and Ichirou Yamaguchi
Opt. Lett. 25(8) 548-550 (2000)

Adaptive optical array receivers for detection of surface acoustic waves

Todd W. Murray, Hemmo Tuovinen, and Sridhar Krishnaswamy
Appl. Opt. 39(19) 3276-3284 (2000)

Doppler standard deviation imaging for clinical monitoring of in vivo human skin blood flow

Yonghua Zhao, Zhongping Chen, Christopher Saxer, Qimin Shen, Shaohua Xiang, Johannes F. de Boer, and J. Stuart Nelson
Opt. Lett. 25(18) 1358-1360 (2000)