Title :
Electronic cooling in multilayer epitaxial graphene
Author :
Mihnev, Momchil T. ; Tolsma, John R. ; Divin, Charles J. ; Berger, Claire ; de Heer, Walt A. ; MacDonald, A.H. ; Norris, Theodore B.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
Using ultrafast optical-pump terahertz-probe spectroscopy, we measure the low-temperature electronic cooling in multilayer epitaxial graphene and develop a theory of hot-carrier equilibration based on interlayer energy transfer via screened Coulomb interactions.
Keywords :
cooling; epitaxial layers; graphene; high-speed optical techniques; hot carriers; nanophotonics; terahertz wave spectra; C; hot-carrier equilibration; interlayer energy transfer; low-temperature electronic cooling; multilayer epitaxial graphene; screened Coulomb interactions; ultrafast optical-pump terahertz-probe spectroscopy; Epitaxial growth; Graphene; Lattices; Optical device fabrication; Optical sensors; Substrates; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
