Numéro
J. Phys. Colloques
Volume 49, Numéro C4, Septembre 1988
ESSDERC 88
18th European Solid State Device Research Conference
Page(s) C4-591 - C4-594
DOI https://doi.org/10.1051/jphyscol:19884125
ESSDERC 88
18th European Solid State Device Research Conference

J. Phys. Colloques 49 (1988) C4-591-C4-594

DOI: 10.1051/jphyscol:19884125

SURFACE PLASMON POLARITON ENHANCED LIGHT EMISSION AND PHOTORESPONSE IN SCHOTTKY DIODES

A. KÖCK, W. BEINSTINGL et E. GORNIK

Institute for Experimental Physics, University of Innsbruck, A-6020 Innsbruck, Austria


Abstract
We have investigated the light emission from forward and reverse biased sinusoidally structured Ag/n-GaAs Schottky diodes. These Schottky junctions provide increased light emission due to the radiative decay of excited surface plasmon polaritons, resulting in drastically enhanced quantum efficiency. Conversely surface plasma modes excited at the surface of a semiconductor-metal-insulator structure provide selective coupling of light into the semiconductor with increased quantum efficiency. It is shown, that Schottky diodes can be used as photodetectors selective to polarization, frequency and angle of incident light.