Theory for oblique-incidence magneto-optical Faraday and Kerr effects in interfaced monolayer graphene and their characteristic features

Abstract

The rigorous magneto-optical response coefficients of the oblique-incidence Faraday and Kerr effects in anisotropic monolayer graphene interfaced with bulk media in general are presented for the first time, to the author’s knowledge. The dependencies of magneto-optical rotation angle and ellipticity on the incident angle, incident polarization, and refractive indices of interfaced media are numerically analyzed and characteristic features are discussed in detail. It is shown that the Kerr effect has the substantially same off-diagonal response coefficient as the Faraday effect, in contrast with the case of conventional media. It is found that supergiant Kerr rotation angles of ∼±90° are produced in the graphene with a transparent substrate when illuminated with p-polarized light in the vicinity of the substrate’s Brewster angle.