Simulation of light focusing by a dielectric microcylinder with a metal film and gap on shadow side. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Savelyeva, A A; Kozlova, E S
• Is Part Of: Journal of physics. Volume 1745:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1745/1/012010
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: In this work, using the FullWAVE software package, numerical simulation of focusing of TM-wave with a wavelength of 633 nm was performed. It is shown that a dielectric microcylinder made of polyester with a radius of 2.1749 of wavelength coated on the shadow side with a silver film of 90 nm with a 100 nm hole, allows to get a focus with a maximum intensity of 1.37 times more (10.61 a. u), than a conventional dielectric cylinder (7.73 a. u).