High-frequency surface acoustic wave propagation in nanaostructures characterized by coherent extreme ultraviolet beams
Journal Article
·
· Appl. Phys. Lett.
OSTI ID:949771
We study ultrahigh frequency surface acoustic wave propagation in nickel-on-sapphire nanostructures. The use of ultrafast, coherent, extreme ultraviolet beams allows us to extend optical measurements of propagation dynamics of surface acoustic waves to frequencies of nearly 50 GHz, corresponding to wavelengths as short as 125 nm. We repeat the measurement on a sequence of nanostructured samples to observe surface acoustic wave dispersion in a nanostructure series for the first time. These measurements are critical for accurate characterization of thin films using this technique.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Materials Sciences Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 949771
- Report Number(s):
- LBNL-1606E; APPLAB; TRN: US200908%%98
- Journal Information:
- Appl. Phys. Lett., Vol. 94; Related Information: Journal Publication Date: 2009; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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