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Proceedings Paper

Optical properties of metal-coated silicon nanocrystals
Author(s): S. B. Korovin; B. B. Krinetskii; Vladimir I. Pustovoy; S. Fadeeva; M. Konstantaki; E. Koudoumas; Stelios Couris
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Paper Abstract

The linear and non-linear optical properties of gold-coated nano-crystals embedded in glycerol have been investigated. The optical absorption spectra and the non-linear absorption of these nanostructures have been determined under various excitation conditions. The peak of the plasmon resonance like curve has been observed to be blue shifted compared to the plasmon peak of colloidal gold particles. The resonance behavior exhibited by the gold coated silicon nano-crystals is interpreted in terms of the third order non-linear susceptibility which is expressed as a saturation absorption behavior of the samples. The effect of the charged interface gold film, which covers the nanocrystals, on the electron band structure and on the linear and non-linear optical properties are discussed.

Paper Details

Date Published: 25 February 2000
PDF: 7 pages
Proc. SPIE 4070, ALT '99 International Conference on Advanced Laser Technologies, (25 February 2000); doi: 10.1117/12.378195
Show Author Affiliations
S. B. Korovin, General Physics Institute (Russia)
B. B. Krinetskii, General Physics Institute (Russia)
Vladimir I. Pustovoy, General Physics Institute (Russia)
S. Fadeeva, General Physics Institute (Russia)
M. Konstantaki, Institute of Electronic Structure and Laser/FORTH (Greece)
E. Koudoumas, Institute of Electronic Structure and Laser/FORTH (Greece)
Stelios Couris, Institute of Electronic Structure and Laser/FORTH (Greece)


Published in SPIE Proceedings Vol. 4070:
ALT '99 International Conference on Advanced Laser Technologies
Vladimir I. Pustovoy; Vitali I. Konov, Editor(s)

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