EPJ Web Conf.
Volume 205, 2019XXI International Conference on Ultrafast Phenomena 2018 (UP 2018)
|Number of page(s)||3|
|Section||Semiconductors, Transition-Metals and Nanocrystals|
|Published online||16 April 2019|
Raman spectroscopy of graphene under ultrafast laser excitation
1 Physics Department, University Rome “Sapienza”, Rome, Italy
2 Istituto Italiano di Tecnologia, Center for Life Nano Science @Sapienza, Rome, Italy
3 ISC-CNR, Rome, Italy
4 Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 OFA, UK
5 IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
Published online: 16 April 2019
The out-of-equilibrium Raman response of graphene is addressed by pulsed laser excitation. Phonon spectrum is rationalized by revisiting the electron-phonon picture in the light of a transient broadening of the Dirac cone.
© The Authors, published by EDP Sciences, 2019
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