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Correlation between the morphological characteristics and extinction spectra of sodium nanoparticles and modification of nanoparticles through photoatomic emission

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Abstract

The morphological characteristics of ensembles of metal nanoparticles on transparent dielectric substrates have been studied by the methods of hole-burning and linear absorption spectroscopy. The size and shape of particles were changed under the exposure to the optical radiation that induced photodetachment of atoms and their photostimulated diffusion over the surface of nanoparticles. The correlation between holes burned in different absorption bands is explained by the morphological features of the island film. The relaxation times of individual modes of collective plasma oscillations and the shape parameters of particles modeled by three-axial ellipsoids have been determined.

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Authors and Affiliations

  1. St. Petersburg State University of Information Technologies, Mechanics, and Optics, St. Petersburg, 197101, Russia

    T. A. Vartanyan, N. B. Leonov, A. E. Logunov, S. G. Przhibel’skiĭ & V. V. Khromov

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  1. T. A. Vartanyan
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  2. N. B. Leonov
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  3. A. E. Logunov
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  4. S. G. Przhibel’skiĭ
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  5. V. V. Khromov
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Original Russian Text © T.A. Vartanyan, N.B. Leonov, A.E. Logunov, S.G. Przhibel’skiĭ, V.V. Khromov, 2007, published in Optika i Spektroskopiya, 2007, Vol. 102, No. 5, pp. 794–799.

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Vartanyan, T.A., Leonov, N.B., Logunov, A.E. et al. Correlation between the morphological characteristics and extinction spectra of sodium nanoparticles and modification of nanoparticles through photoatomic emission. Opt. Spectrosc. 102, 728–733 (2007). https://doi.org/10.1134/S0030400X0705013X

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  • DOI: https://doi.org/10.1134/S0030400X0705013X

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