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Surface-Enhanced Raman Scattering in Metal Microspheres
被引:0
作者:
Sarychev, A. K.
[1
]
Ivanov, A. V.
[1
]
Bykov, I. V.
[1
]
Shestopalova, M. S.
[2
]
Mochalov, K. E.
[3
]
机构:
[1] Russian Acad Sci, Inst Theoret & Appl Electrodynam, Moscow 125412, Russia
[2] Natl Res Nucl Univ MEPhI, Inst Laser & Plasma Technol, Moscow 115409, Russia
[3] Russian Acad Sci, Shemyakin Ovchinnikov Inst Bioorgan Chem, Moscow 117997, Russia
基金:
俄罗斯科学基金会;
关键词:
electric field enhancement;
plasmon resonance;
giant Raman scattering;
metal microspheres;
GOLD NANOPARTICLES;
SIO2;
SPHERES;
AG;
NANOGAP;
ARRAY;
FABRICATION;
MONOLAYER;
SUBSTRATE;
NANOHOLE;
GAPS;
D O I:
10.3103/S106833562360242X
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
We present an analytical theory of plasmons excited in spherical metal resonators filled with the molecules under study. A simple L-C model of plasmons generated in a metal nanoshell is developed. The electromagnetic mechanism of surface-enhanced (giant) Raman scattering (SERS) can be investigated qualitatively and quantitatively. The theoretical results are in qualitative agreement with computer simulations. The results of the SERS experiment in polystyrene spheres coated with a silver nanolayer are presented.
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页码:S1492 / S1503
页数:12
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