Optical properties of nanosized gold particles
1996 ◽
Vol 11
(11)
◽
pp. 2834-2840
◽
Keyword(s):
Gold particles smaller than 2 nm in diameter were grown in glass. Their optical absorption spectrum did not show the usual plasma absorption band for gold particles; this band was spread by the small particle size. The absorption spectrum was calculated from the bulk optical properties of gold, modified for the small particle size; there was good agreement between calculated and measured spectra. The smallest particles containing from 20 to 40 gold atoms showed a λ−4 dependence of absorption on wavelength λ. This result implies that the absorption in these particles was entirely from free electrons at wavelengths above 0.3 μm.
2019 ◽
Vol 58
(5-6)
◽
pp. 278-284
Keyword(s):
Keyword(s):
1998 ◽
Vol 204
(2)
◽
pp. 219-226
◽
1996 ◽
Vol 79
(12)
◽
pp. 3257-3265
◽
2015 ◽
Vol 23
(1)
◽
pp. 273-284
◽
2011 ◽
Vol 295-297
◽
pp. 890-895
Keyword(s):