Microscopic origins of the terahertz carrier relaxation and cooling dynamics in graphene

We combine ultrafast time-resolved THz spectroscopy and microscopic modeling to study the hot-carrier relaxation and cooling dynamics in graphene; we obtain quantitative agreement without the need to invoke disorder effects and demonstrate that the dynamics are the result of the intricate interplay...

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Published in2015 Conference on Lasers and Electro-Optics (CLEO) pp. 1 - 2
Main Authors Mihnev, Momchil T., Divin, Charles J., Kadi, Faris, Winzer, Torben, Seunghyun Lee, Che-Hung Liu, Zhaohui Zhong, Xiaohan Wang, Ruoff, Rodney S., Berger, Claire, de Heer, Walt A., Malic, Ermin, Knorr, Andreas, Norris, Theodore B.
Format Conference Proceeding
LanguageEnglish
Published OSA 01.05.2015
Subjects
Cooling
Graphene
Microscopy
Optical microscopy
Probes
Substrates
Temperature measurement
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Summary:We combine ultrafast time-resolved THz spectroscopy and microscopic modeling to study the hot-carrier relaxation and cooling dynamics in graphene; we obtain quantitative agreement without the need to invoke disorder effects and demonstrate that the dynamics are the result of the intricate interplay between carrier-carrier and carrier-phonon interactions.
ISSN:2160-8989
2160-9004
DOI:10.1364/CLEO_QELS.2015.FTu4B.5