Wednesday, 30th January 2019
h 2.00 p.m.
Seminar Room, 1st Floor, U5 Building – via Roberto Cozzi 55, I-20125 Milano
Lecturer: Timothy C. H. Liew – School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore
Title: Spinor and nonlinear effects in Exciton- polariton lattices
Abstract. Exciton-polaritons are hybrid states of light and matter existing in semiconductor heterostructures. They have been typically studied in planar microcavities containing quantum wells, exhibiting spin-sensitive phenomena such as the optical spin Hall effect and nonlinear effects such as solitons and bistability. More recently, there has been a growing interest in studying exciton-polaritons in patterned lattices, where the interplay of spin-orbit interaction with magnetic field was shown to give rise to topological physics. Furthermore, as we will show, the spin sensitivity of nonlinear interactions allows exciton-polaritons in lattices to demonstrate complex phenomena, such as that of cellular automata."