We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ultraviolet Beam Focusing in Gallium Arsenide by Direct Excitation of Surface Plasmon Polaritons.
- Authors
Lai, Senfeng; Wu, Wen; Gu, Wenhua
- Abstract
This paper proposed that ultraviolet beam could be focused by gallium arsenide (GaAs) through direct excitation of surface plasmon polaritons. Both theoretical analysis and computer simulation showed that GaAs could be a reasonably good plasmonic material in the air in the deep ultraviolet waveband. With a properly designed bull’s eye structure etched in GaAs, the ultraviolet electric field could be enhanced to as high as 20 times the incident value, and the full-width-half-maximum (FWHM) of the light beam could be shrunk from ~48° to ~6°. As a plasmonic material, GaAs was compared to Ag and Al. Within the studied ultraviolet waveband, the field enhancement in GaAs was much stronger than Ag but not as high as Al.
- Subjects
GALLIUM arsenide; ULTRAVIOLET radiation; PARTICLE beam focusing; SURFACE plasmons; POLARITONS
- Publication
Journal of Nanomaterials, 2015, Vol 2015, p1
- ISSN
1687-4110
- Publication type
Article
- DOI
10.1155/2015/897542