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arXiv · 1905.13707

Unveiling optical in-plane anisotropy of 2D materials from oblique incidence of light

Maurice Oliva-Leyva·Gerardo Gonzalez de la Cruz
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Abstract

In this work, we present a theoretical study of the dispersion of linearly polarized light between two dielectric media separated by an anisotropic two-dimensional (2D) material under oblique incidence. Assuming that the 2D material is a conducting sheet of negligible thickness, generalized Fresnel coefficients are derived as a function of usual quantities (e.g. refraction indexes and scattering angles) and the anisotropic in-plane optical conductivity of the interstitial 2D material. In particular, we analyzed the modifications due to the 2D material of two classical optical phenomena: the Brewster effect and the total internal reflection. As an application, our general findings are particularized for uniaxially strained graphene. Effects of a uniaxial strain on the Brewster angle and the reflectance (under total internal reflection) are evaluated as a function of the magnitude and direction of strain.

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Maurice Oliva-Leyva, Gerardo Gonzalez de la Cruz. 2019-05-31. Unveiling optical in-plane anisotropy of 2D materials from oblique incidence of light. https://doi.org/10.1088/1361-648x/ab1f5c

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