2000 character limit reached
Optical Valley Hall Effect based on Transitional Metal Dichalcogenide cavity polaritons (1611.02894v1)
Published 9 Nov 2016 in cond-mat.mes-hall
Abstract: We calculate the dispersion of spinor exciton-polaritons in a planar microcavity with its active region containing a single Transitional Metal Dichalcogenide (TMD) monolayer, taking into account excitonic and photonic spin-orbit coupling. We consider the radial propagation of polaritons in presence of disorder. We show that the reduction of the disorder scattering induced by the formation of polariton states allows to observe an optical Valley Hall effect, namely the coherent precession of the locked valley and polarization pseudospins leading to the formation of spatial valley-polarized domains.