Abstract

It is experimentally shown that, when copper and silver ions are successively incorporated into silicate glass by the method of ion exchange, followed by heat treatment, metallic nanoparticles whose structure and composition depend on its temperature are formed in the glass. When the heat-treatment temperature is lower than the glass-transition temperature, spherical nanoparticles of silver and copper are formed in the glass; when the temperature is above the glass-transition temperature, nanostructures are formed that consist of a copper core and a silver shell. The absorption spectra of such structures are compared with the calculated spectrum of their absorption cross section.

© 2015 Optical Society of America

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