Surface plasmon coupling to nanoscale Schottky-type electrical detectors

摘要

We investigate the possibility to detect plasmons via near-field coupling to a Schottky junction. A plasmon is generated upon illumination of a grating and travels along an Al film towards a Ti/CdS nanowire interface. Photocurrent images show a photo response at the grating which origins from the plasmon reaching the Schottky contact of the nanowire.