Share Email Print
cover

Proceedings Paper

Interference enhancement and modulation introduced by surface plasmon polaritons in a concentric-ring structure
Author(s): Senfeng Lai; Wen Wu; Li Peng; Wenhua Gu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This article studied the interference enhancement and modulation introduced by surface plasmon polaritons (SPPs) in a double-concentric-ring structure. Young’s double-slit interference experiment is a classic experiment in the history of physics, and has many modifications with deep impacts in many areas including physics, optics, and electromagnetics. In this work, to use the classic bull’s eye structure to produce the surface plasmon polariton effect, a double-concentricring- hole structure was used instead of the double-slit structure to generate optical interference, and the bull’s eye structure was applied in the surroundings to generate surface plasmonic wave for modulation of the interference. For structure details, a concentric double-ring-hole was etched in a silver film, with a series of periodic concentric-ringshaped shallow grooves etched in both the upper and bottom surfaces of the silver films. Simulation results showed that the interference of the double-ring-hole could be modulated by SPPs, generating new transmission spectra with desired peak positions and intensities. The transmission peak intensity could be enhanced by 2 to 6 times. The proposed structure can be used as a powerful and convenient tool to adjust the transmission spectra, which can have promising applications in the design and implementation of optical devices for filtering and sensing, especially in the sub-wavelength structure size range.

Paper Details

Date Published: 15 October 2015
PDF: 4 pages
Proc. SPIE 9673, AOPC 2015: Micro/Nano Optical Manufacturing Technologies; and Laser Processing and Rapid Prototyping Techniques, 96730P (15 October 2015); doi: 10.1117/12.2199510
Show Author Affiliations
Senfeng Lai, Nanjing Univ. of Science and Technology (China)
Wen Wu, Nanjing Univ. of Science and Technology (China)
Li Peng, Nanjing Univ. of Science and Technology (China)
Wenhua Gu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9673:
AOPC 2015: Micro/Nano Optical Manufacturing Technologies; and Laser Processing and Rapid Prototyping Techniques
Lin Li; Minghui Hong; Lan Jiang, Editor(s)

© SPIE. Terms of Use
Back to Top