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Cited by 547

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Measurement of the optical absorption spectra of epitaxial graphene from terahertz to visible

Open access
Dawlaty, Jahan M., Shivaraman, Shriram, Strait, Jared, George, Paul, Chandrashekhar, Mvs, Rana, Farhan, Spencer, Michael G., Veksler, Dmitry, Chen, Yunqing·2008·Applied Physics Letters

Abstract

We present experimental results on the optical absorption spectra of epitaxial graphene from the visible to the terahertz frequency range. In the terahertz range, the absorption is dominated by intraband processes with a frequency dependence similar to the Drude model. In the near-IR range, the absorption is due to interband processes and the measured optical conductivity is close to the theoretical value of e2/4ℏ. We extract values for the carrier densities, the number of carbon atom layers, and the intraband scattering times from the measurements.

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Metadata

Authors
Dawlaty, J. M., Shivaraman, S., Strait, J., George, P., Chandrashekhar, M., Rana, F., Spencer, M. G., Veksler, D., & Chen, Y.
Venue
Applied Physics Letters
Published
2008-09-29
Volume
93
Issue
13
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
OpenAlex
W2134624410
Cited by
547
References
6
FWCI
7.41
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Measurement of the optical absorption spectra of epitaxial graphene from terahertz to visible. https://app.cochat.ai/papers/10.1063/1.2990753
The paper
Dawlaty, J. M., Shivaraman, S., Strait, J., George, P., Chandrashekhar, M., Rana, F., Spencer, M. G., Veksler, D., & Chen, Y. (2008). Measurement of the optical absorption spectra of epitaxial graphene from terahertz to visible. Applied Physics Letters. https://doi.org/10.1063/1.2990753

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