THz emission from coherently controlled photocurrents in epitaxial graphene

Author

Sun, Dong ; Divin, Charles J. ; Berger, Claire ; De Heer, Walt ; Rioux, Julien ; Sipe, John ; Norris, Theodore B.

Author_Institution

Center for Ultrafast Opt. Sci., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

We inject ballistic electric currents into epitaxial graphene at 300 K via quantum interference between phase controlled cross-polarized 3.2 mum and 1.6 mum 200- fs pulses. The transient currents are detected via the emitted terahertz radiation.

Keywords

ballistic transport; carbon compounds; photoconductivity; photoemission; terahertz waves; transients; ballistic electric current; coherently controlled photocurrents; epitaxial graphene; quantum interference; temperature 300 K; terahertz emission; terahertz radiation; time 200 fs; transient currents; wavelength 1.6 mum; wavelength 3.2 mum; Absorption; Control systems; Interference; Optical control; Optical films; Optical pumping; Optical scattering; Photoconductivity; Stimulated emission; Ultrafast optics; (030.1670) Coherent optical effects; (160.4236) Nanomaterials;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225676