Abstract
Contrary to the perception that Nobel-winning topological physics has not found useful applications, we show that the textbook design of daily-life semiconductor lasers is equivalent to standard topological models in 1D. By upgrading to the 2D vortex zero modes, we invent topological-cavity surface-emitting lasers (TCSEL) whose performance far exceeds that of their commercial counterparts. Finally, we demonstrate the monopole cavity in 3D with the optimal single-mode behaviours, completing the kink-vortex-monopole trilogy of topological defect modes.
References:
Nature Nanotechnology 15, 1012 (2020)
Nature Photonics 16, 279 (2022) TCSEL.com
arXiv: 2210.09056
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