学術雑誌論文

学術雑誌論文

text

Japanese Journal of Applied Physics. 2020, 59, p. SKKB04

Development of confocal picosecond ultrasonics for visualizing propagation of an acoustic wave

The Japan Society of Applied Physics

英語

text

2020-03-23

https://doi.org/10.35848/1347-4065/ab7b15

This is the Accepted Manuscript version of an article accepted for publication in Japanese Journal of Applied Physics. IOP Publishing Ltd are not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1347-4065/abea50.

For visualizing propagation of an acoustic wave and evaluating the local sound velocity in micro/nano-meter structures, confocal picosecond ultrasonics is developed. In conventional picosecond ultrasonics, the measurement of local sound velocity was difficult, and macroscopic sound velocity and elastic properties were measured. However, in confocal picosecond ultrasonics, a confocal laser-scanning microscope is embedded in the optics of the picosecond ultrasonics, and the depth resolution is improved. Using the developed optics, we successfully observed propagation of an acoustic wave in thin film. In this paper, the optics we developed and the experimental results on silica film are reported.

© 2020 The Japan Society of Applied Physics. This Accepted Manuscript is available for reuse under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License after the 12 month embargo period provided that all the terms of the license are adhered to.

84482

Development of confocal picosecond ultrasonics for visualizing propagation of an acoustic wave

The Japan Society of Applied Physics

英語

2020-03-23

Japanese Journal of Applied Physics

59

SKKB04

https://doi.org/10.35848/1347-4065/ab7b15

https://hdl.handle.net/11094/84482