Title :
Terahertz carrier dynamics in graphene and graphene nanostructures
Author :
Jensen, Soren A. ; Turchinovich, Dmitry ; Tielrooij, Klaas-Jan ; Koppens, Frank ; Ulbricht, Ronald ; Hertel, Tobias ; Narita, Akimitsu ; Xinliang Feng ; Mullen, Klaus ; Bonn, Mischa
Author_Institution :
Max Planck Inst. for Polymer Res., Mainz, Germany
Abstract :
Photoexcited charge carriers in 2D graphene and in 1D graphene nanostructures were studied with optical pump-THz probe spectroscopy. We find efficient hot-carrier multiplication in 2D graphene, and predominantly free carrier early-time response in 1D nanostructures.
Keywords :
graphene; hot carriers; optical pumping; terahertz wave spectra; 1D graphene nanostructures; 2D graphene; C; free carrier early-time response; hot-carrier multiplication; optical pump-THz probe spectroscopy; photoexcited charge carriers; terahertz carrier dynamics; Conductivity; Graphene; Optical pumping; Optical scattering; Optical sensors; Photonics; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
