Journal article
Phase study of the generated surface plasmon waves in light transmission through a subwavelength aperture
Interference of surface plasmon (SP) waves plays a key role in light transmission through a subwavelength aperture surrounded by groove structures. In order to characterize interference of the hole and groove-generated SP waves, their phase information was carefully investigated using finite difference time domain simulations.
In a structure with only one groove, constructive interference of the generated SP waves will enhance transmitted light by a factor of 5.4 compared with that of a single hole. Increasing the groove number to 3 in the design, which supports constructive interference of SP waves, will enhance the transmission coefficient to 10.5 times that for the single-hole transmission coefficient.
Language: | English |
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Year: | 2014 |
Pages: | 083094 |
ISSN: | 19342608 |
Types: | Journal article |
DOI: | 10.1117/1.JNP.8.083094 |
ORCIDs: | Xiao, Sanshui |