(Peer-Reviewed) Photonic lenses with whispering gallery waves at Janus particles
Igor V. Minin ¹, Oleg V. Minin ¹, Yinghui Cao 曹英辉 ², Bing Yan 闫冰 ³, Zengbo Wang 王增波 ³, Boris Luk'yanchuk ⁴
¹ Tomsk Polytechnic University, 36 Lenin Avenue, Tomsk 634050, Russia
² College of Computer Science and Technology, Jilin University, 2699 Qianjin Street, Changchun 130012, China
中国 长春 吉林大学计算机科学与技术学院
³ School of Computer Science and Electronic Engineering, Bangor University, Dean Street, Bangor, Gwynedd, LL57 1UT, UK
⁴ Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
Opto-Electronic Science, 2022-02-16
Abstract
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, which can be used for contact optical lithography.
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