Abstract
Periodic patterns of relief defined on a substrate using conventional lithographic techniques are phononic crystals for surface localized acoustic waves. Picosecond transient grating characterization of the acoustic behavior of Rayleigh waves in structures of binary, one-dimensional patterns of relief with feature sizes of a few microns show that these crystals exhibit complete phononic band gaps at frequencies of a few tenths of a gigahertz. These types of structures could be useful for applications in surface acoustic wave devices; understanding their acoustic behavior will help to establish strategies for transient grating examination of complex microstructures.
Original language | English (US) |
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Pages (from-to) | 1402-1404 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 77 |
Issue number | 9 |
DOIs | |
State | Published - Aug 28 2000 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)