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arXiv · 1311.7158

Non-integer optical modes in a M\"obius-ring resonator

S. L. Li·L. B. Ma·V. M. Fomin·S. Böttner·M. R. Jorgensen·O. G. Schmidt
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Abstract

In-plane polarized light experiences a non-trivial topological evolution as it propagates resonantly in a M\"obius ring resonator. The resultant geometric phase varies continuously when changing the light ellipticity, which leads to constructive interference for a non-integer number of wavelengths, and therefore to the occurrence of an arbitrary fractional number of optical modes. The geometric phase in M\"obius-ring resonators is topologically robust and implies excellent intrinsic fault-tolerance.

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S. L. Li, L. B. Ma, V. M. Fomin, S. Böttner, M. R. Jorgensen, O. G. Schmidt. 2013-11-27. Non-integer optical modes in a M\"obius-ring resonator. https://doi.org/10.1038/s41566-022-01107-7

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