Electron and ion dynamics in graphene and graphane fragments subjected to high-intensity laser pulses

Sergiy Bubin, Kálmán Varga

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

In the framework of real-time real-space time-dependent density functional theory complemented with Ehrenfest molecular dynamics we have studied the response of small graphene and graphane fragments to intense femtosecond laser pulses. In particular, we have investigated how the response changes with laser pulses of different frequency (near IR, visible, and UV). The results of our simulations show that graphene has a very high immediate (i.e., within laser-pulse duration) damage threshold. They also suggest that, similar to the case of other hydrogenated surfaces, it should be possible to selectively desorb hydrogens from graphane without destroying the underlying carbon structure provided that the laser pulse parameters are properly chosen.

Original languageEnglish
Article number205441
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number20
DOIs
Publication statusPublished - May 24 2012
Externally publishedYes

Fingerprint

Graphite
high power lasers
Graphene
Laser pulses
graphene
fragments
Ions
Electrons
pulses
lasers
ions
electrons
Ultrashort pulses
Density functional theory
Molecular dynamics
Hydrogen
yield point
Carbon
pulse duration
molecular dynamics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Electron and ion dynamics in graphene and graphane fragments subjected to high-intensity laser pulses. / Bubin, Sergiy; Varga, Kálmán.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 20, 205441, 24.05.2012.

Research output: Contribution to journalArticle

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