Magnetic and electric hotspots with silicon nanodimers

Nano Lett. 2015 Mar 11;15(3):2137-42. doi: 10.1021/acs.nanolett.5b00128. Epub 2015 Feb 24.


The study of the resonant behavior of silicon nanostructures provides a new route for achieving efficient control of both electric and magnetic components of light. We demonstrate experimentally and numerically that enhancement of localized electric and magnetic fields can be achieved in a silicon nanodimer. For the first time, we experimentally observe hotspots of the magnetic field at visible wavelengths for light polarized across the nanodimer's primary axis, using near-field scanning optical microscopy.

Keywords: Nanoantenna; optically induced magnetic resonances; silicon nanoparticle.

Publication types

  • Research Support, Non-U.S. Gov't