Resonant evanescent excitation of guided waves with high-order optical angular momentum

M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America B 38 (2021).

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Journal Article | Published | English
Abstract
Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric slab can excite modes with high-order optical angular momentum supported by a circular fiber. We consider a multimode step-index fiber with a high-index coating, where the waves in the slab are evanescently coupled to the modes of the fiber. Conditions for effective resonant interaction are identified. Based on a hybrid analytical–numerical coupled mode model, our simulations predict that substantial fractions of the input power can be focused into waves with specific orbital angular momentum, of excellent purity, with a clear distinction between degenerate modes with opposite vorticity.
Publishing Year
Journal Title
Journal of the Optical Society of America B
Volume
38
Issue
5
Article Number
1717
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Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of guided waves with high-order optical angular momentum. Journal of the Optical Society of America B. 2021;38(5). doi:10.1364/josab.422731
Hammer, M., Ebers, L., & Förstner, J. (2021). Resonant evanescent excitation of guided waves with high-order optical angular momentum. Journal of the Optical Society of America B, 38(5). https://doi.org/10.1364/josab.422731
@article{Hammer_Ebers_Förstner_2021, title={Resonant evanescent excitation of guided waves with high-order optical angular momentum}, volume={38}, DOI={10.1364/josab.422731}, number={51717}, journal={Journal of the Optical Society of America B}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2021} }
Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” Journal of the Optical Society of America B 38, no. 5 (2021). https://doi.org/10.1364/josab.422731.
M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of guided waves with high-order optical angular momentum,” Journal of the Optical Society of America B, vol. 38, no. 5, 2021.
Hammer, Manfred, et al. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” Journal of the Optical Society of America B, vol. 38, no. 5, 1717, 2021, doi:10.1364/josab.422731.
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