It is shown that surface plasmons (SPs) are supported on thin PtSi films. Using a prism-air gap-sample configuration, p- polarised infra-red light (3·39 μ m) has been coupled with ~95% efficiency to SPs on the silicide electrode of PtSi-Si Schottky barrier structures. Stimulating SPs offers both a means of optically characterising silicide films and of enhancing optical absorption with a view to significantly increasing the Schottky barrier photoresponse.
- Infra-red detedtors
- Schottky barriers
- Surface phenomena
ASJC Scopus subject areas
- Electrical and Electronic Engineering