Title :
Ultrafast measurements of thermal transport in Graphene
Author :
Wang, Haining ; Strait, Jared H. ; Shivaraman, Shriram ; Besant, Justin D. ; Shield, Virgil B. ; Spencer, Michael G. ; Rana, Farhan
Author_Institution :
Dept. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
We present results from measurements of ultrafast thermal transport in Graphene. We find that on picosecond time scales and 5-20 micron length scales hot carriers, instead of the phonons, are the dominant carriers of thermal energy. The thermal transport is found to be diffusive with a diffusivity of ~500 cm2/s.
Keywords :
graphene; hot carriers; light scattering; thermal conductivity measurement; diffusivity; dominant carriers; graphene; hot carriers; picosecond time scales; thermal energy; thermal transport; ultrafast measurement; Atom optics; Conducting materials; Optical pulses; Optical pumping; Optical scattering; Optical sensors; Phonons; Probes; Spectroscopy; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
