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arXiv · 1012.0127

Optical Properties of Strained Graphene

Vitor M. Pereira·R. M. Ribeiro·N. M. R. Peres·A. H. Castro Neto
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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 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.

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Vitor M. Pereira, R. M. Ribeiro, N. M. R. Peres, A. H. Castro Neto. 2010-12-01. Optical Properties of Strained Graphene. https://doi.org/10.1209/0295-5075%2F92%2F67001

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