Split of surface plasmon resonance of gold nanoparticles on silicon substrate: A study of dielectric functions

S. Zhu; T. P. Chen; Z. H. Cen; E. S.M. Goh; Siu Fung Yu; Y. C. Liu; Y. Liu

doi:10.1364/OE.18.021926

Split of surface plasmon resonance of gold nanoparticles on silicon substrate: A study of dielectric functions

S. Zhu, T. P. Chen, Z. H. Cen, E. S.M. Goh, Siu Fung Yu, Y. C. Liu, Y. Liu

Research output: Journal article publication › Journal article › Academic research › peer-review

25 Citations (Scopus)

Abstract

The split of surface plasmon resonance of self-assembled gold nanoparticles on Si substrate is observed from the dielectric functions of the nanoparticles. The split plasmon resonances are modeled with two Lorentz oscillators: one oscillator at ∼1 eV models the polarization parallel to the substrate while the other at ∼2 eV represents the polarization perpendicular to the substrate. Both parallel and perpendicular resonances are red-shifted when the nanoparticle size increases. The red shifts in both resonances are explained by the image charge effect of the Si substrate.

Original language	English
Pages (from-to)	21926-21931
Number of pages	6
Journal	Optics Express
Volume	18
Issue number	21
DOIs	https://doi.org/10.1364/OE.18.021926
Publication status	Published - 11 Oct 2010
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1364/OE.18.021926

Cite this

@article{db2dfc89250a4e04a1d5d6ce32c4c59a,

title = "Split of surface plasmon resonance of gold nanoparticles on silicon substrate: A study of dielectric functions",

abstract = "The split of surface plasmon resonance of self-assembled gold nanoparticles on Si substrate is observed from the dielectric functions of the nanoparticles. The split plasmon resonances are modeled with two Lorentz oscillators: one oscillator at ∼1 eV models the polarization parallel to the substrate while the other at ∼2 eV represents the polarization perpendicular to the substrate. Both parallel and perpendicular resonances are red-shifted when the nanoparticle size increases. The red shifts in both resonances are explained by the image charge effect of the Si substrate.",

author = "S. Zhu and Chen, {T. P.} and Cen, {Z. H.} and Goh, {E. S.M.} and Yu, {Siu Fung} and Liu, {Y. C.} and Y. Liu",

year = "2010",

month = oct,

day = "11",

doi = "10.1364/OE.18.021926",

language = "English",

volume = "18",

pages = "21926--21931",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "21",

}

TY - JOUR

T1 - Split of surface plasmon resonance of gold nanoparticles on silicon substrate: A study of dielectric functions

AU - Zhu, S.

AU - Chen, T. P.

AU - Cen, Z. H.

AU - Goh, E. S.M.

AU - Yu, Siu Fung

AU - Liu, Y. C.

AU - Liu, Y.

PY - 2010/10/11

Y1 - 2010/10/11

N2 - The split of surface plasmon resonance of self-assembled gold nanoparticles on Si substrate is observed from the dielectric functions of the nanoparticles. The split plasmon resonances are modeled with two Lorentz oscillators: one oscillator at ∼1 eV models the polarization parallel to the substrate while the other at ∼2 eV represents the polarization perpendicular to the substrate. Both parallel and perpendicular resonances are red-shifted when the nanoparticle size increases. The red shifts in both resonances are explained by the image charge effect of the Si substrate.

AB - The split of surface plasmon resonance of self-assembled gold nanoparticles on Si substrate is observed from the dielectric functions of the nanoparticles. The split plasmon resonances are modeled with two Lorentz oscillators: one oscillator at ∼1 eV models the polarization parallel to the substrate while the other at ∼2 eV represents the polarization perpendicular to the substrate. Both parallel and perpendicular resonances are red-shifted when the nanoparticle size increases. The red shifts in both resonances are explained by the image charge effect of the Si substrate.

UR - http://www.scopus.com/inward/record.url?scp=78049519428&partnerID=8YFLogxK

U2 - 10.1364/OE.18.021926

DO - 10.1364/OE.18.021926

M3 - Journal article

C2 - 20941092

SN - 1094-4087

VL - 18

SP - 21926

EP - 21931

JO - Optics Express

JF - Optics Express

IS - 21

ER -

Split of surface plasmon resonance of gold nanoparticles on silicon substrate: A study of dielectric functions

Abstract

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this