4 research outputs found
Plasmonic Nanoslit Array Enhanced Metal-Semiconductor-Metal Optical Detectors
Cataloged from PDF version of article.Metallic nanoslit arrays integrated on germanium
metal–semiconductor–metal photodetectors show many folds of
absorption enhancement for transverse-magnetic polarization
in the telecommunication C-band. Such high enhancement is
attributed to resonant interference of surface plasmon modes
at the metal–semiconductor interface. Horizontal surface
plasmon modes were reported earlier to inhibit photodetector
performance. We computationally show, however, that horizontal
modes enhance the efficiency of surface devices despite reducing
transmitted light in the far field
Plasmonic nanoslit array enhanced metal-semiconductor-metal optical detectors
Metallic nanoslit arrays integrated on germanium metal-semiconductor-metal photodetectors show many folds of absorption enhancement for transverse-magnetic polarization in the telecommunication C-band. Such high enhancement is attributed to resonant interference of surface plasmon modes at the metal-semiconductor interface. Horizontal surface plasmon modes were reported earlier to inhibit photodetector performance. We computationally show, however, that horizontal modes enhance the efficiency of surface devices despite reducing transmitted light in the far field. © 2006 IEEE