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arXiv · 2005.00606

Nanostructured optical waveguide with a highly confined mode

E. D. Chubchev·I. A. Nechepurenko·A. V. Dorofeenko·A. P. Vinogradov·Alexander A. Lisyansky
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Abstract

We propose a transmission line working at telecom wavelengths with cross section as small as ${\lambda}^2/39$, which is 1.6 times smaller than that of optimized silicon waveguide. The proposed line can be implemented as a subwavelength fiber with plasmonic cladding. This considerable decrease in the line cross section is achieved by utilizing a plasmonic quasi-antisymmetric mode. The required plasmonic cladding is rather thin, therefore, losses are moderate and could be compensated by using amplifying core materials. Such a transmission line can find applications in densely integrated optical systems.

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E. D. Chubchev, I. A. Nechepurenko, A. V. Dorofeenko, A. P. Vinogradov, Alexander A. Lisyansky. 2020-05-01. Nanostructured optical waveguide with a highly confined mode. https://doi.org/10.1364/josab.396739

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