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Proceedings Paper

Spectroscopic characteristics of nanocomposite structures in 3D, 2D, and 1D size confinements
Author(s): T. S. Perova; I. I. Shaganov; S. Unnikrishnan; R. A. Moore
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Paper Abstract

Based on the relationship between spectrum of Einstein coefficient B(v) and optical response ε2 meso for nanostructural materials with different types of size confinement (nanospheres, nanowires and nanowalls) we perform the numerical calculation and analysis of ε2 meso and B(v) functions using dispersive effective field approach for a number of harmonic oscillators with different dispersive parameters (oscillator strength, decay factor and peak frequency). It has been shown that the spectral properties (peak position, peak intensity and half width) of ε2 meso strongly depend upon the type of size confinement. In contrast, the spectrum B(v) is the same for all cases of composite media and therefore has a fundamental meaning. Differences in dielectric functions observed for all studied cases arise as a result of the variation in the local field factor for 3D, 2D and 1D size confinements.

Paper Details

Date Published: 3 June 2005
PDF: 10 pages
Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); doi: 10.1117/12.606760
Show Author Affiliations
T. S. Perova, Univ. of Dublin, Trinity College (Ireland)
I. I. Shaganov, Vavilov State Optical Institute (Russia)
S. Unnikrishnan, Univ. of Dublin, Trinity College (Ireland)
R. A. Moore, Univ. of Dublin, Trinity College (Ireland)

Published in SPIE Proceedings Vol. 5826:
Opto-Ireland 2005: Optical Sensing and Spectroscopy
Gerard D. O'Sullivan; Brian D. MacCraith; Hugh James Byrne; Enda McGlynn; Alan G. Ryder, Editor(s)

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