Nondestructive picosecond ultrasonic characterization of Mo/Si multilayers using a novel pump-probe scheme

Nen-Wen Pu; Seongtae Jeong; Rian Zhao; Jeffrey Bokor

doi:10.1117/12.355075

19 July 1999 Nondestructive picosecond ultrasonic characterization of Mo/Si multilayers using a novel pump-probe scheme

Nen-Wen Pu, Seongtae Jeong, Rian Zhao, Jeffrey Bokor

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.355075
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

We have used picosecond ultrasonics techniques to study the localized surface vibrations in Mo/Si multilayers. Two band- gap modes were simultaneously detected using a new alternating pumps scheme, which has been demonstrated to enhance the signal-to-noise ratio by 10 dB.

Citation Download Citation

Nen-Wen Pu, Seongtae Jeong, Rian Zhao, and Jeffrey Bokor "Nondestructive picosecond ultrasonic characterization of Mo/Si multilayers using a novel pump-probe scheme", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.355075

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