Title :
Plasmonic gratings for enhanced THz emission from metal-semiconductor thin films
Author :
Ramanandan, Gopika K. P. ; Adam, A.J.L. ; Planken, Paul C. M.
Author_Institution :
Opt. Res. Group, Delft Univ. of Technol., Delft, Netherlands
Abstract :
THz emission from thin film Schottky junctions is enhanced using plasmonic nano-gratings. Enhancement factors of up to 5.6 are observed in the emitted electric field, corresponding to a power enhancement factor of ~34.
Keywords :
Schottky barriers; diffraction gratings; metallic thin films; microwave photonics; nanophotonics; plasmonics; semiconductor thin films; terahertz wave spectra; THz emission; electric field; metal-semiconductor thin films; plasmonic nanogratings; power enhancement factor; thin film Schottky junctions; Electric fields; Films; Gold; Gratings; Optical surface waves; Plasmons; Surface emitting lasers;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665531
