Response of graphene to femtosecond high-intensity laser irradiation

Adam Roberts, Daniel Cormode, Collin Reynolds, Ty Newhouse-Illige, Brian J. Leroy, Arvinder S. Sandhu

Research output: Contribution to journalReview articlepeer-review

133 Scopus citations

Abstract

We study the response of graphene to high-intensity, 50-femtosecond laser pulse excitation. We establish that graphene has a high (∼3 1012 Wcm-2) single-shot damage threshold. Above this threshold, a single laser pulse cleanly ablates graphene, leaving microscopically defined edges. Below this threshold, we observe laser-induced defect formation leading to degradation of the lattice over multiple exposures. We identify the lattice modification processes through in-situ Raman microscopy. The effective lifetime of chemical vapor deposition grown graphene under femtosecond near-infrared irradiation and its dependence on laser intensity is determined. These results also define the limits of non-linear applications of graphene in femtosecond high-intensity regime.

Original languageEnglish (US)
Article number051912
JournalApplied Physics Letters
Volume99
Issue number5
DOIs
StatePublished - Aug 1 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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