Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon.

ABSTRACT: Robust laser sources are a fundamental building block for contemporary information technologies. Originating from condensed-matter physics, the concept of topology has recently entered the realm of optics, offering fundamentally new design principles for lasers with enhanced robustness. In analogy to the well-known Majorana fermions in topological superconductors, Dirac-vortex states have recently been investigated in passive photonic systems and are now considered as a promising candidate for robust lasers. Here, we experimentally realize the topological Dirac-vortex microcavity lasers in InAs/InGaAs quantum-dot materials monolithically grown on a silicon substrate. We observe room-temperature continuous-wave linearly polarized vertical laser emission at a telecom wavelength. We confirm t

SUBMITTER: Ma J 

PROVIDER: S-EPMC10593858 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature