Surface plasmon enhanced electrically pumped random lasers

Nanoscale. 2013 Jan 21;5(2):513-7. doi: 10.1039/c2nr32900j. Epub 2012 Nov 30.

Abstract

Electrically pumped random lasing has been realized in Au/MgO/ZnO structures. By incorporating Ag nanoparticles, whose extinction spectrum overlaps well with the emission spectrum of the structures, the threshold of the random lasing can be decreased from 63 mA to 21 mA. The decrease in the threshold has been attributed to the resonant coupling between the carriers in the active layer of the structures and the surface plasmon of the Ag nanoparticles.

Publication types

  • Research Support, Non-U.S. Gov't