20 June 2007 Optical properties of gold-nanoshell planar array
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We report on our theoretical and experimental investigations of 2D arrays of silica/gold nanoshells. To calculate the optical properties of surface aggregated nanoshells, we used the generalized multiparticle Mie solution and the T-matrix method were used. We found that the optical properties of colloidal and surface-aggregated silica/gold nanoshells differed enormously. Because of the coherent interaction among particles in the array, the dipole band of extinction disappeared and only the quadruple component of the spectra was observed. In the experimental section, silica gold nanoshells with a silica core diameter of 210 nm and a gold shell thickness of 28 nm were made. We studied the kinetics of formation of a self-assembled nanoshell monolayer on a chemically modified glass substrate. We observed agreement between the experimental and the theoretically calculated extinction spectra of the silica/gold monolayers.
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Boris N. Khlebtsov, Vitaliy A. Khanadeyev, Denis A. Verin, Nikolai G. Khlebtsov, "Optical properties of gold-nanoshell planar array", Proc. SPIE 6536, Saratov Fall Meeting 2006: Coherent Optics of Ordered and Random Media VII, 653602 (20 June 2007); doi: 10.1117/12.753418; https://doi.org/10.1117/12.753418

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