Photonic Lenses with Whispering Gallery Waves at Janus Particles

17 Dec 2020 · Igor V. Minin, Oleg V. Minin, Yinghui Cao, Bing Yan, Zengbo Wang, Boris Luk'yanchuk ·

We show that electric field on the plane surface of truncated sphere or cylinders (so called Janus particles) have sharp resonances versus the depth of removed segment of a sphere or cylinder. These resonances are related to the excited whispering gallery waves caused by truncation. It is a new mechanism of the field localization. Optimization of this effect for cylinders permits to reach a super resolution in the line thickness what can be used for contacting optical lithography.

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Photonic Lenses with Whispering Gallery Waves at Janus Particles

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