Finite element analysis of surface acoustic waves in high aspect ratio electrodes

Maria Bayard Dühring (Invited author), Vincent Laude (Invited author), Abdelkrim Khelif (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper elaborates on how the finite element method is employed to model surface acoustic waves generated by high aspect ratio electrodes and their interaction with optical waves in a waveguide. With a periodic model it is shown that these electrodes act as a mechanical resonator which slows down the SAWvelocity because of mechanical energy storage. A finite model is furthermore employed to study the acousto-optical interaction and shows that it is possible to get a bigger change in effective refractive index with these surface acoustic waves compared to using conventional interdigital transducers. Thus, this indicates a way to improve acousto-optical interaction.
Original languageEnglish
Title of host publicationProceedings of the 9. International Conference on Computational Structures Technology
EditorsBHV Topping, M Papadrakakis
Place of PublicationStirlingshire, United Kingdom
PublisherCivil-Comp Press
Publication date2008
Pagespaper 90
ISBN (Print)978-1-905088-23-2
Publication statusPublished - 2008
Event9th International Conference on Computational Structures Technology - Athens, Greece
Duration: 2 Sep 20085 Sep 2008
Conference number: 9
http://www.civil-comp.com/conf/cst2008.htm

Conference

Conference9th International Conference on Computational Structures Technology
Number9
CountryGreece
CityAthens
Period02/09/200805/09/2008
Internet address

Keywords

  • finite element analysis
  • perfectly matched layers
  • piezoelectric material
  • acousto-optic interaction
  • surface acoustic waves

Cite this

Dühring, M. B., Laude, V., & Khelif, A. (2008). Finite element analysis of surface acoustic waves in high aspect ratio electrodes. In BHV. Topping, & M. Papadrakakis (Eds.), Proceedings of the 9. International Conference on Computational Structures Technology (pp. paper 90). Civil-Comp Press.