DocumentCode
1760560
Title
Nearly Perfect Absorption by Bimetallic Surface Plasmonic Crystal and Its Application as Sensor
Author
Sunghwan Kim
Author_Institution
Dept. of Phys., Ajou Univ., Suwon, South Korea
Volume
26
Issue
12
fYear
2014
fDate
41805
Firstpage
1259
Lastpage
1262
Abstract
The author proposes and numerically investigates nearly perfect absorption in a bimetallic surface plasmonic crystal formed by two physically adjoined gold and silver nanohole array layers. The absorption over 99% at 650-nm wavelength is obtained and its high quality factor is preserved for oblique incidence. The structure is examined as a plasmonic sensor to measure the refractive indexes. The author achieves a very high modified figure-of-merit of 335.
Keywords
gold; infrared spectra; nanophotonics; nanosensors; nanostructured materials; numerical analysis; optical sensors; plasmonics; refractive index measurement; silver; visible spectra; Au-Ag; bimetallic surface plasmonic crystal; gold nanohole array layers; nearly perfect absorption; oblique incidence; plasmonic sensor; quality factor; refractive index measurement; silver nanohole array layers; wavelength 650 nm; Absorption; Arrays; Gold; Optical sensors; Optical surface waves; Plasmons; Absorbing media; nanophotonics; optical sensors;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2014.2320907
Filename
6807643
Link To Document