Spectroscopy and Imaging of Plasmonic Modes Over a Single Decahedron Gold Nanoparticle: A Combined Experimental and Numerical Study

被引：28

作者：

Das, Pabitra ^{[1
]}

Chini, Tapas Kumar ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, Surface Phys Div, Kolkata 700064, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 49期

关键词：

OPTICAL MICROSCOPY; SURFACE-PLASMONS; CATHODOLUMINESCENCE; NANODECAHEDRA; FREQUENCIES; SIZE;

D O I：

10.1021/jp3103782

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：

Employing cathodoluminescence (CL) spectroscopy and imaging in a field emission gun (FEG) scanning electron microscope (SEM), we study localized surface plasmon (LSP) modes on individual tilted gold nanodecahedron sitting on a silicon substrate. We experimentally resolve three distinct LSP modes in the far-field radiation acquired via CL. The experimental spectra and intensity maps of plasmon modes are in excellent agreement with the spectra and 2D-CL image obtained from finite difference time domain (FDTD) simulations. Detail analysis reveals the signature of a quadrupolar surface plasmon mode in addition to the two dipolar modes along azimuthal and polar direction of the decahedron. The experimental method and the theoretical formalism presented here provide useful insight into the plasmonic behavior of complex shaped metal nanoparticle supported by a high index substrate.

引用

页码：25969 / 25976

页数：8

共 38 条

[1] Resolving the electromagnetic mechanism of surface-enhanced light scattering at single hot spots [J].

Alonso-Gonzalez, P. ;

Albella, P. ;

Schnell, M. ;

Chen, J. ;

Huth, F. ;

Garcia-Etxarri, A. ;

Casanova, F. ;

Golmar, F. ;

Arzubiaga, L. ;

Hueso, L. E. ;

Aizpurua, J. ;

Hillenbrand, R. .

NATURE COMMUNICATIONS, 2012, 3

[2]

Atwater HA, 2010, NAT MATER, V9, P205, DOI [10.1038/nmat2629, 10.1038/NMAT2629]

[3] Imaging of Plasmonic Modes of Silver Nanoparticles Using High-Resolution Cathodoluminescence Spectroscopy [J].

Chaturvedi, Pratik ;

Hsu, Keng H. ;

Kumar, Anil ;

Fung, Kin Hung ;

Mabon, James C. ;

Fang, Nicholas X. .

ACS NANO, 2009, 3 (10) :2965-2974

[4] Probing Higher Order Surface Plasmon Modes on Individual Truncated Tetrahedral Gold Nanoparticle Using Cathodoluminescence Imaging and Spectroscopy Combined with FDTD Simulations [J].

Das, Pabitra ;

Chini, Tapas Kumar ;

Pond, James .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (29) :15610-15619

[5]

Das P, 2011, CURR SCI INDIA, V101, P849

[6] Probing the photonic local density of states with electron energy loss spectroscopy [J].

de Abajo, F. J. Garcia ;

Kociak, M. .

PHYSICAL REVIEW LETTERS, 2008, 100 (10)

[7] Nanoplasmonics: Classical down to the Nanometer Scale [J].

Duan, Huigao ;

Fernandez-Dominguez, Antonio I. ;

Bosman, Michel ;

Maier, Stefan A. ;

Yang, Joel K. W. .

NANO LETTERS, 2012, 12 (03) :1683-1689

[8] Optical excitations in electron microscopy [J].

Garcia de Abajo, F. J. .

REVIEWS OF MODERN PHYSICS, 2010, 82 (01) :209-275

[9] Resonant wedge-plasmon modes in single-crystalline gold nanoplatelets [J].

Gu, Lin ;

Sigle, Wilfried ;

Koch, Christoph T. ;

Oeguet, Burcu ;

van Aken, Peter A. ;

Talebi, Nahid ;

Vogelgesang, Ralf ;

Mu, Jianlin ;

Wen, Xiaogang ;

Mao, Jian .

PHYSICAL REVIEW B, 2011, 83 (19)

[10] Correlated Structure and Optical Property Studies of Plasmonic Nanoparticles [J].

Henry, Anne-Isabelle ;

Bingham, Julia M. ;

Ringe, Emilie ;

Marks, Laurence D. ;

Schatz, George C. ;

Van Duyne, Richard P. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (19) :9291-9305

← 1 2 3 4 →