Investigation of the profile effect on the sensitivity enhancement of nanowire-mediated localized surface plasmon resonance biosensors

Kyung Min Byun, Donghyun Kim, Sung June Kim

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Localized surface plasmon resonance (SPR) biosensors with metallic nanowires regularly patterned on a gold film are considered for sensitivity enhancement. The theoretical investigation was conducted using rigorous coupled wave analysis in terms of various design metrics, such as the resonance angle shift, the SPR curve angular width, and the minimum reflectance at resonance. The results show that nanowires of a T-profile present more effective sensitivity enhancement than an inverse T-profile. The sensitivity enhancement mediated by the presence of nanowires has also been clarified qualitatively based on the dispersion relation between metal film involving nanowires and surrounding dielectric medium. The study is expected to provide extremely high sensitivity in SPR-based biosensing.

Original languageEnglish
Pages (from-to)401-407
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume117
Issue number2
DOIs
Publication statusPublished - 2006 Oct 12

Fingerprint

Surface plasmon resonance
bioinstrumentation
surface plasmon resonance
Biosensors
Nanowires
nanowires
augmentation
sensitivity
profiles
metal films
Gold
Metals
gold
reflectance
shift
curves

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

@article{f3d93ae544d34a20b597dd34d1712fc7,
title = "Investigation of the profile effect on the sensitivity enhancement of nanowire-mediated localized surface plasmon resonance biosensors",
abstract = "Localized surface plasmon resonance (SPR) biosensors with metallic nanowires regularly patterned on a gold film are considered for sensitivity enhancement. The theoretical investigation was conducted using rigorous coupled wave analysis in terms of various design metrics, such as the resonance angle shift, the SPR curve angular width, and the minimum reflectance at resonance. The results show that nanowires of a T-profile present more effective sensitivity enhancement than an inverse T-profile. The sensitivity enhancement mediated by the presence of nanowires has also been clarified qualitatively based on the dispersion relation between metal film involving nanowires and surrounding dielectric medium. The study is expected to provide extremely high sensitivity in SPR-based biosensing.",
author = "Byun, {Kyung Min} and Donghyun Kim and Kim, {Sung June}",
year = "2006",
month = "10",
day = "12",
doi = "10.1016/j.snb.2005.11.038",
language = "English",
volume = "117",
pages = "401--407",
journal = "Sensors and Actuators, B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "2",

}

Investigation of the profile effect on the sensitivity enhancement of nanowire-mediated localized surface plasmon resonance biosensors. / Byun, Kyung Min; Kim, Donghyun; Kim, Sung June.

In: Sensors and Actuators, B: Chemical, Vol. 117, No. 2, 12.10.2006, p. 401-407.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Investigation of the profile effect on the sensitivity enhancement of nanowire-mediated localized surface plasmon resonance biosensors

AU - Byun, Kyung Min

AU - Kim, Donghyun

AU - Kim, Sung June

PY - 2006/10/12

Y1 - 2006/10/12

N2 - Localized surface plasmon resonance (SPR) biosensors with metallic nanowires regularly patterned on a gold film are considered for sensitivity enhancement. The theoretical investigation was conducted using rigorous coupled wave analysis in terms of various design metrics, such as the resonance angle shift, the SPR curve angular width, and the minimum reflectance at resonance. The results show that nanowires of a T-profile present more effective sensitivity enhancement than an inverse T-profile. The sensitivity enhancement mediated by the presence of nanowires has also been clarified qualitatively based on the dispersion relation between metal film involving nanowires and surrounding dielectric medium. The study is expected to provide extremely high sensitivity in SPR-based biosensing.

AB - Localized surface plasmon resonance (SPR) biosensors with metallic nanowires regularly patterned on a gold film are considered for sensitivity enhancement. The theoretical investigation was conducted using rigorous coupled wave analysis in terms of various design metrics, such as the resonance angle shift, the SPR curve angular width, and the minimum reflectance at resonance. The results show that nanowires of a T-profile present more effective sensitivity enhancement than an inverse T-profile. The sensitivity enhancement mediated by the presence of nanowires has also been clarified qualitatively based on the dispersion relation between metal film involving nanowires and surrounding dielectric medium. The study is expected to provide extremely high sensitivity in SPR-based biosensing.

UR - http://www.scopus.com/inward/record.url?scp=33748055142&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748055142&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2005.11.038

DO - 10.1016/j.snb.2005.11.038

M3 - Article

AN - SCOPUS:33748055142

VL - 117

SP - 401

EP - 407

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

SN - 0925-4005

IS - 2

ER -