FDTD Modeling of Gold Nanoparticles in a Nematic Liquid Crystal: Quantitative and Qualitative Analysis of the Spectral Tunability

被引：31

作者：

Dridi, Montacer ^{[1
]}

Vial, Alexandre ^{[1
]}

机构：

[1] Univ Technol Troyes, Inst Charles Delaunay, Lab Nanotechnol & Instrumentat Opt, F-10010 Troyes, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 21期

关键词：

SURFACE-PLASMON RESONANCE; SILVER NANOPARTICLES; DIELECTRIC ENVIRONMENT; OPTICAL-PROPERTIES; SERS APPLICATIONS; SENSITIVITY; ARRAYS; SHAPE; SIZE; SPECTROSCOPY;

D O I：

10.1021/jp910950m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we numerically investigate an active plasmonic device that is based on an ordered array of gold nanocylinders with an elliptic basis embedded in a nematic liquid crystal (LC) layer. The localized surface plasmon resonance (LSPR) of the gold cylinders depends on the refractive index of the surrounding media, which depends on the orientation of the optical axis. Rotating the optical axis causes the LSPR to shift, and we will show that by modifying geometrical parameters we can increase the sensitivity of the LSPR to the orientation of the optical axis and thereby enhance the switching effects.

引用

页码：9541 / 9545

页数：5

共 37 条

[1] Surface plasmon TE and TM waves at the anisotropic film-metal interface
Abdulhalim, I.
[J]. JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2009, 11 (01):
[2] Born Max., 1980, PRINCIPLE OPTICS, V6th
[3] Brongersma ML, 2007, SPRINGER SER OPT SCI, V131, P1, DOI 10.1007/978-1-4020-4333-8
[4] Electrically controlled surface plasmon resonance frequency of gold nanorods
Chu, K. C.
Chao, C. Y.
Chen, Y. F.
Wu, Y. C.
Chen, C. C.
[J]. APPLIED PHYSICS LETTERS, 2006, 89 (10)
[5] Electronically controlled surface plasmon dispersion and optical transmission through metallic hole arrays using liquid crystal
Dickson, Wayne
Wurtz, Gregory A.
Evans, Paul R.
Pollard, Robert J.
Zayats, Anatoly V.
[J]. NANO LETTERS, 2008, 8 (01) : 281 - 286
[6] 3D FDTD method for arbitrary anisotropic materials
Dou, Lixing
Sebak, Abdel R.
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2006, 48 (10) : 2083 - 2090
[7] Modeling of metallic nanostructures embedded in liquid crystals: application to the tuning of their plasmon resonance
Dridi, Montacer
Vial, Alexandre
[J]. OPTICS LETTERS, 2009, 34 (17) : 2652 - 2654
[8] Spectral degeneracy breaking of the plasmon resonance of single metal nanoparticles by nanoscale near-field photopolymerization
El Ahrach, H. Ibn
Bachelot, R.
Vial, A.
Lerondel, G.
Plain, J.
Royer, P.
Soppera, O.
[J]. PHYSICAL REVIEW LETTERS, 2007, 98 (10)
[9] Electrically switchable nonreciprocal transmission of plasmonic nanorods with liquid crystal
Evans, P. R.
Wurtz, G. A.
Hendren, W. R.
Atkinson, R.
Dickson, W.
Zayats, A. V.
Pollard, R. J.
[J]. APPLIED PHYSICS LETTERS, 2007, 91 (04)
[10] Optical extinction Spectroscopy of oblate, prolate and ellipsoid shaped gold nanoparticles: Experiments and theory
Grand, Johan
Adam, Pierre-Michel
Grimault, Anne-Sophie
Vial, Alexandre
De la Chapelle, Marc Lamy
Bijeon, Jean-Louis
Kostcheev, Sergei
Royer, Pascal
[J]. PLASMONICS, 2006, 1 (2-4) : 135 - 140

← 1 2 3 4 →