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|Title:||Optical properties of strained graphene|
|Authors:||Pereira, V.M. |
Castro Neto, A.H.
|Citation:||Pereira, V.M., Ribeiro, R.M., Peres, N.M.R., Castro Neto, A.H. (2010-12). Optical properties of strained graphene. EPL 92 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/92/67001|
|Abstract:||The optical conductivity of graphene strained uniaxially is studied within the Kubo-Greenwood formalism. Focusing on inter-band absorption, we analyze and quantify the breakdown of universal transparency in the visible region of the spectrum, and analytically characterize the transparency as a function of strain and polarization. Measuring transmittance as a function of incident polarization directly reflects the magnitude and direction of strain. Moreover, direction-dependent selection rules permit the identification of the lattice orientation by monitoring the van Hove transitions. These photoelastic effects in graphene can be explored towards atomically thin, broadband optical elements. © 2010 Europhysics Letters Association.|
|Appears in Collections:||Staff Publications|
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