SHERP

Design optimization of nano-grating surface plasmon resonance sensors

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Authors
Yoon, Kyung Hun; Shuler, Michael L.; Kim, Sung June
Issue Date
2006-05
Publisher
Optical Society of America
Citation
Opt. Express 14, 4842-4849 (2006)
Keywords
GratingsSensorsSurface Plasmons
Abstract
In this study, we propose nano-grating surface plasmon
resonance (NGSPR) sensors and show the design optimization process.
NGSPR sensors with line width less than 50 nm show narrow reflection
peaks from the excitation of localized surface plasmon polaritons. The
wavelength of resonance reflection can be customized by adjusting the
grating period. We predict that a refractive index sensitivity of more than
400 nm/RIU can be obtained using an optimized structure. Sharp reflection
resonance peaks with FWHM of 0.03 eV will further enhance the sensitivity
of the sensors. The simple optical configuration of normal incidence and
high refractive index sensitivity make it possible for NGSPR sensors to be
used as portable biosensors for high-throughput screening applications.
ISSN
1094-4087
Language
English
URI
http://hdl.handle.net/10371/8851
DOI
https://doi.org/10.1364/OE.14.004842
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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