Nanoscale patterning of metal nanoparticle distribution in glasses
1 , National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, 197101, Russia
2 Department of Physics and Mathematics, University of Eastern Finland, PO Box-111Joensuu, 80101, Finland
3 , St. Petersburg Academic University, St. Petersburg, 194021, Russia
4 , St. Petersburg State Polytechnical University, St. Petersburg, 195251, Russia
Nanoscale Research Letters 2013, 8:260 doi:10.1186/1556-276X-8-260Published: 1 June 2013
We show that electric field imprinting technique allows for patterning of metal nanoparticles in the glass matrix at the subwavelength scale. The formation of glass-metal nanocomposite strips with a width down to 150 nm is demonstrated. The results of near-field microscopy of imprinted patterns are in good agreement with the performed numerical modeling. Atomic force microscopy reveals that imprinting also results in the formation of nanoscale surface profile with the height going down with the decrease of the strip width. The experiments prove the applicability of this technique for the fabrication of nanoscale plasmonic components.