Plasmonic acousto-optic transducer for high frequency surface acoustic waves

Author

Arca, Ahmet ; Ademgil, H.

fYear

2014

fDate

23-25 April 2014

Firstpage

598

Lastpage

601

Abstract

Acousto-Optic Transducers can be used for remote non-destructive testing in difficult to reach locations. These transducers can be activated with laser light and the reflected light can be detected with a remote receiver. Using fibers to transmit light to hard to reach locations, or attaching fibers to the proximity of the area under investigation can facilitate the extraction of data from such areas, when there is no line of sight available. In this article, the operating mechanism of a plasmonic-acousto-optic transducer, designed to be used with fiber optics, in order to detect very high frequency (~10GHz) surface acoustic waves is described. The displacement caused by the SAW modulates the coupling efficiency of the surface plasmon to the transducer, thus changing the reflection coefficient.

Keywords

acousto-optical devices; fibre optic sensors; nondestructive testing; plasmonics; surface acoustic wave transducers; SAW; coupling efficiency; fiber optics; high frequency surface acoustic waves; laser light; plasmonic acousto-optic transducer; reflection coefficient; remote nondestructive testing; remote receiver; surface plasmon; Optical fiber communication; Optical fiber sensors; Optical fibers; Optical surface waves; Plasmons; Surface acoustic waves; Transducers; fiber sensors; optic-ultrasonic transducers; plasmonic sensors; ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communications Applications Conference (SIU), 2014 22nd

Conference_Location

Trabzon

Type

conf

DOI

10.1109/SIU.2014.6830300

Filename

6830300