Broadband electromagnetic response and ultrafast dynamics of few-layer epitaxial graphene
By H. Choi, Ferenc Borondics, D. Siegel, S. Zhou, M. Martin, Alessandra Lanzara, R. Kaindl. 2009
218 citations recorded by the source corpus.
We study the broadband optical conductivity and ultrafast carrier dynamics of epitaxial graphene in the few-layer limit. Equilibrium spectra of nominally buffer, monolayer, and multilayer graphene exhibit significant terahertz and near-infrared absorption, consistent with a model of intra- and interband transitions in a dense Dirac electron plasma. Non-equilibrium terahertz transmission changes after photoexcitation are shown to be dominated by excess hole carriers, with a 1.2-ps mono-exponential decay that refects the minority-carrier recombination time.
Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/24f0bd854870bf238b04f4e84c4ad4d6891847df
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In Atomic and Molecular Physics, and Optics
In Biomedical Engineering
In Materials Chemistry
Citations in the corpus
- Colloquium: Graphene spectroscopy (2014, background): “One can extend measurements to lower frequency provided larger area samples are used, such as epitaxial (Choi et al., 2009; Hofmann et al., 2011) and CVD-grown graphene (Horng et al.”