Diffraction less and strongly confined surface acoustic waves in domain inverted LiNbO3 superlattices

Yudistira, D, Benchabane, S, Janner, D and Pruneri, V 2011, 'Diffraction less and strongly confined surface acoustic waves in domain inverted LiNbO3 superlattices', Applied Physics Letters, vol. 98, no. 23, pp. 1-3.


Document type: Journal Article
Collection: Journal Articles

Title Diffraction less and strongly confined surface acoustic waves in domain inverted LiNbO3 superlattices
Author(s) Yudistira, D
Benchabane, S
Janner, D
Pruneri, V
Year 2011
Journal name Applied Physics Letters
Volume number 98
Issue number 23
Start page 1
End page 3
Total pages 3
Publisher American Institute of Physics
Abstract We show that an appropriate mass-loading, placed on the surface and in between the electrodes of a coplanar acoustic LiNbO3 superlattice, can counteract lateral diffraction of surface acoustic waves (SAWs). The strong confinement corresponds to a SAW mode, whose displacement is measured using laser interferometry. The proposed SAW confinement method has also potentials in acousto-optic devices, as we demonstrate a threefold reduction in the electrical power required for complete optical switching in mass-loaded superlattice with respect to similar unloaded structure. The devices have also the advantage not to suffer additional acoustic or optical loss due to the mass-loading structure
Subject Acoustics and Acoustical Devices; Waves
Nonlinear Optics and Spectroscopy
Photonics, Optoelectronics and Optical Communications
DOI - identifier 10.1063/1.3599569
Copyright notice © 2011 American Institute of Physics
ISSN 0003-6951
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