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Photonic lenses with whispering gallery waves at Janus particles
具有回音壁波Janus粒子的光子透镜
ヤヌス粒子でささやきの回廊の波を伴うフォトニックレンズ
Janus 입자에서 갤러리 파동을 속삭이는 광자 렌즈
Lentes fotónicas con ondas de galería susurrantes en partículas de Janus
Lentilles photoniques avec des ondes de galerie chuchotantes sur les particules Janus
Фотонные линзы с волнами шепчущей галереи на частицах Януса
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, 16 February 2022
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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