Title :
Photon helicity driven currents in graphene
Author :
Ganichev, S.D. ; Karch, J. ; Olbrich, P. ; Schmalzbauer, M. ; Zoth, C. ; Brinsteiner, C. ; Wurstbauer, U. ; Glazov, M.M. ; Tarasenko, S.A. ; Weiss, D. ; Eroms, J. ; Yakimova, R. ; Lara-Avila, S. ; Kubatkin, S. ; Ivchenko, E.L.
Author_Institution :
Terahertz Center, Univ. of Regensburg, Regensburg, Germany
Abstract :
We report on the observation of photon helicity driven currents in graphene. We demonstrate that by illuminating unbiased monolayer graphene samples with terahertz (THz) laser radiation at room temperature under oblique and normal incidence causes directed electric currents. This includes currents which are solely driven by the light´s helicity.
Keywords :
Hall effect; electric current; elemental semiconductors; graphene; helicity (elementary particles); lighting; monolayers; C; directed electric currents; driven currents; illumination; light helicit; normal incidence; oblique incidence; photon helicity; terahertz laser radiation; unbiased monolayer graphene samples; Current; Electric fields; Gallium nitride; Hall effect; Lasers; Lighting; Photonics;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612541
