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in both absorption and scattering spectra are identical, at least
within the resolution limit of simulation, for both longitudinal and
transverse bands. By comparing Fig. 1.4 with Fig. 1.1, one can easily
notice that the overall spectral appearances in scattering spectra are
somewhat different from those obtained in the absorption spectra.
The scattering shows relatively much higher intensities in shorter
wavelength region due to its characteristic frequency dependence.
10
3.0
2.0
Na
Ni
Cu
Al
2.5
600
8
1.5
2.0
6
400
1.5
1.0
4
1.0
200
0.5
2
0.5
0
0.0
0.0
0
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
5
2.0
2.0
3
Pd
Ga
Ti
Ag
4
1.5
1.5
2
3
1.0
1.0
2
1
0.5
0.5
1
0
0.0
0.0
0
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
1.0
5
10
2.0
Mn
Pt
Au
Co
0.8
4
8
1.5
0.6
3
6
1.0
0.4
2
4
0.5
0.2
1
2
0.0
0
0
0.0
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
8
5
5
3.0
Re
Fe
Os
Rh
2.5
4
4
6
2.0
3
3
4
1.5
2
2
1.0
2
1
1
0.5
0
0
0
0.0
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
200
400
600
800
1000
1200
Wavelength (nm)
Figure 1
.
4
Simulated scattering spectra of metallic nanorods. The calcula-
tion was based on the classical electrostatic model for prolate
nanoparticles with 50 nm in length and 20 nm in diameter.
Acknowledgment
The authors gratefully acknowledge the inancial support from the
National Science Council of Taiwan in the past years.
References
1. C. M. Niemeyer,
Angew
.
Chem
.
Int
.
Ed
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40
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2. A. P. Alivisatos, K. P. Johnsson, X. Peng, T. E. Wilson, C. J. Loweth, M. P. B.
Jr., and P. G. Schultz,
Nature
,
382
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3. A. K. Boal, F. Ilhan, J. E. DeRouchey, T. Thurn-Albrecht, T. P. Russell, and
V. M. Rotello,
Nature
,
404
, 746 (2000).
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