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Broadband electromagnetic response and ultrafast dynamics of few-layer epitaxial graphene
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10.1063/1.3122348
/content/aip/journal/apl/94/17/10.1063/1.3122348
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3122348
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Relative transmission of nominally buffer, monolayer, and multilayer graphene (top to bottom), measured by FTIR (solid lines) and time-domain THz spectroscopy (dots). Dotted lines: guide to the eyes. Undulations in the THz data below arise from laser drift. Hatched: Reststrahlen region of SiC. Inset: sample modulation scheme.

Image of FIG. 2.
FIG. 2.

Real part of the optical sheet conductivity (gray), normalized by : (a) buffer layer, [(b) and (c)] monolayer, and multilayer graphene, with the buffer conductivity subtracted. Solid and dashed lines: model as explained in the text. [(d)–(f)] LEEM images of nominally buffer, monolayer, and multilayer graphene.

Image of FIG. 3.
FIG. 3.

Nonequilibrium THz response. (a) Reference field (gray) and pump-induced change (black) at . (b) Transmission changes (symbols) at pump fluence. Lines: model of Eq. (3), for electron (dashed) and hole contributions (dotted) at , and the sum (solid lines) with time-dependent . Inset: nonequilibrium state. [(c) and (d)] Pump fluence dependence of amplitude and recombination time for mono- (squares) and multilayer (circles).

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/content/aip/journal/apl/94/17/10.1063/1.3122348
2009-04-29
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Broadband electromagnetic response and ultrafast dynamics of few-layer epitaxial graphene
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3122348
10.1063/1.3122348
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