1207.3533 (H. Flayac et al.)

Transmutation from Skyrmions to Half-Solitons Driven by the Nonlinear
Optical Spin-Hall Effect    [PDF]

H. Flayac, D. D. Solnyshkov, I. A. Shelykh, G. Malpuech

We show that the polarization domains generated in the linear optical spin-Hall effect by the analog of spin-orbit interaction for exciton-polaritons are associated with the formation of a Skyrmion lattice. In the non-linear regime, the spin anisotropy of the polariton-polariton interactions results in a spatial compression of the spin domains and in an abrupt transformation of the Skyrmions into half-solitons, associated with both the focalization of the spin currents and the emergence of a strongly anisotropic emission pattern.

View original: http://arxiv.org/abs/1207.3533