P. St-Jean

TL;DR: In this article, topologically protected lasing is reported in a one-dimensional lattice of polariton micropillars that implements an orbital version of the Su-Schrieffer-Heeger Hamiltonian, which offers new opportunities for robust trapping of light in nano-and micrometre-scale systems subject to fabrication imperfections and environmentally induced deformations.

TL;DR: In this paper, topological edge states of a one-dimensional lattice of polariton micropillars that implements an orbital version of the Su-Schrieffer-Heeger Hamiltonian were shown to persist under local deformations of the lattice.

TL;DR: In this article, an integrated microlaser where the chirality of the wavefront can be optically controlled is presented. But it is not shown that the scheme that is used, based on an effective spin-orbit coupling of photons in a semiconductor microcavity, can be extended to different laser architectures, thus paving the way to the realization of a new generation of OAM microlasers with tunable chIRality.

TL;DR: In this article, an integrated microlaser where the chirality of the wavefront can be optically controlled is presented. But this scheme is based on the optical breaking of time-reversal symmetry in a semiconductor microcavity and cannot be extended to different laser architectures.

TL;DR: Topological photonics seeks to control the behavior of the light through the design of protected topological modes in photonic structures as discussed by the authors , with a special attention to questions in fundamental science, which photonics is in an ideal position to address.