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A Magnifying Glass for Virtual Imaging of Subwavelength Resolution by Transformation Optics
Author(s) -
Sun Fei,
Guo Shuwei,
Liu Yichao,
He Sailing
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201801641
Subject(s) - optics , magnification , superresolution , materials science , resolution (logic) , diffraction , image resolution , transformation (genetics) , computer science , physics , image (mathematics) , computer vision , artificial intelligence , biochemistry , chemistry , gene
Traditional magnifying glasses can give magnified virtual images with diffraction‐limited resolution, that is, detailed information is lost. Here, a novel magnifying glass by transformation optics, referred to as a “superresolution magnifying glass” (SMG) is designed, which can produce magnified virtual images with a predetermined magnification factor and resolve subwavelength details (i.e., light sources with subwavelength distances can be resolved). Based on theoretical calculations and reductions, a metallic plate structure to produce the reduced SMG in microwave frequencies, which gives good performance verified by both numerical simulations and experimental results, is proposed and realized. The function of SMG is to create a superresolution virtual image, unlike traditional superresolution imaging devices that create real images. The proposed SMG will create a new branch of superresolution imaging technology.