Title :
Graphene on silicon as optically tuned terahertz modulator
Author :
Weis, Pierre ; Garcia-Pomar, Juan L. ; Hoh, M. ; Neu, Jens ; Reinhard, Benjamin ; Brodyanski, Alexander ; Rahm, Marco
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Kaiserslautern, Kaiserslautern, Germany
Abstract :
We show that the spectrally wideband optical tunability of terahertz transmission through silicon can be strongly improved by deposition of graphene. We measured enhanced modulation up to ΔM=24% at a low modulation beam power of 40 mW and a maximal modulation depth of up to M=99%.
Keywords :
graphene; optical modulation; optical tuning; graphene on silicon; optically tuned terahertz modulator; power 40 mW; terahertz transmission; Conductivity; Graphene; Optical modulation; Optical pumping; Silicon; Switches;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665931
