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

https://phys.org/news/2023-10-room-temperature-continuous-wave-topological-dirac-vortex-microcavity.html

"InAs/InGaAs QD materials monolithically grown... harnessing an auxiliary orbital degree of freedom in topological insulators. By doing so, they were able to control the near-field of the Dirac-vortex cavities to obtain linearly polarized far-field emission... on-chip light source silicon-based photonic integrated circuits... non-Hermiticity, bosonic nonlinearity, and quantum electrodynamics... optoelectronics, communications, and silicon-based PICs with topological robustness"

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