2018 Vol. 45, No. 4

Cover story:Wu Z X, Jin Q J, Zhang K, et al. Binary-amplitude modulation based super-oscillatory focusing planar lens for azimuthally polarized wave[J]. Opto-Electronic Engineering, 2018, 45(4): 170660. 

The research group of Professor Gang Chen, School of Optoelectronics Engineering, Chongqing University, is dedicated to the researches in sub-diffraction optical devices and super-resolution imaging systems. To generate the super-diffraction hollow ring, they proposed a binary-amplitude (0, 1) super-oscillatory planar lens based on concentric ring structure of metal. The working wavelength is 632.8 nm, the lens radius is 650λ, and its focal length is 200λ. The corresponding numerical aperture is 0.96. The lens was designed by the vectorial angular spectrum diffraction theory and the particle swarm optimization. Such planar lenses are easy to fabricate and integrate.

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2024 Vol. 51, No. 2

ISSN (Print) 1003-501X
ISSN (Online) 2097-4019
CN 51-1346/O4
Editor-in-Chief:
Prof. Xiangang Luo
Executive Editor-in-Chief:
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