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Journal article

Phase study of the generated surface plasmon waves in light transmission through a subwavelength aperture

By Hashemi, Mahdieh1; Xiao, Sanshui1,2; Farzad, Mahmood Hosseini3

From

Structured Electromagnetic Materials, Department of Photonics Engineering, Technical University of Denmark1

Department of Photonics Engineering, Technical University of Denmark2

Shiraz University3

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
Year: 2014
Pages: 083094
ISSN: 19342608
Types: Journal article
DOI: 10.1117/1.JNP.8.083094
ORCIDs: Xiao, Sanshui
Keywords

Enhanced transmission Hole-groove structures Subwavelength structures Surface plasmons

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