Journal
APPLIED PHYSICS LETTERS
Volume 77, Issue 9, Pages 1402-1404Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1290388
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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. (C) 2000 American Institute of Physics. [S0003-6951(00)05635-7].
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