Helical Polariton Lasing from Topological Valleys in an Organic Crystalline Microcavity (Adv. Sci. 29/2022)

Helical Polariton Lasing from Topological Valleys In article number 2203588 by Qing Liao and co-workers, an organic anisotropic microcrystalline cavity is realized. Despite the structure's anisotropy it emits circularly polarized coherent light from topological valleys in the nontrivial polaritonic band structure. The concept is promising for the realization of future optoelectronic devices.