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Title: Optical properties of strained graphene
Authors: Pereira, V.M. 
Ribeiro, R.M.
Peres, N.M.R.
Castro Neto, A.H. 
Issue Date: Dec-2010
Source: 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.
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.
Source Title: EPL
ISSN: 02955075
DOI: 92/67001
Appears in Collections:Staff Publications

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