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Effect of a dielectric shell of a silver nanoparticle on the spectral position of the plasmon resonance of the nanoparticle in photochromic glass |
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| Authors: | N.?V.?Nikonorov A.?I.?Sidorov V.?A.?Tsekhomski? K.?E.?Lazareva |
| Affiliation: | (1) Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy;(2) Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;(3) School of Engineering and Applied Sciences, Harvard University (USA), Cambridge, MA, USA |
| Abstract: | The behavior of the spectral position of the absorption band of colloidal silver in photochromic glass is analyzed in relation to the variation in the refractive index of a thin layer of the medium (shell) that surrounds silver nanoparticles. It is shown that the appearance of a shell with a high refractive index leads to a long-wavelength shift in the plasmon absorption band of silver nanoparticles. These results make it possible to explain particular features of the absorption spectrum of photothermorefractive glasses. |
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