@inproceedings{06d3ab15f8d041dea7502df75986756d,
title = "Analysis of phase discretization influence on the monochromatic aberrations of focusing metasurface based on generalized rayleigh-sommerfeld diffraction theory",
abstract = "In this paper, we discuss the effect of phase discretization on the monochromatic aberrations of a planar focusing metasurface. A series of focusing metasurfaces with constant aperture and different numerical aperture (NA) are synthesized by availably discrete phase distributions instead of the ideally continuous phase maps. Under normal and oblique illumination of a Gaussian plane-wave, their diffraction field patterns are computed by the generalized Rayleigh-Sommerfeld diffraction integral. The focusing parameters describing the beam shape and the Strehl ratio quantifying the aberrations are then extracted from numerical results and comparatively analyzed. It is demonstrated that the flat metasurface with increasing phase levels can obtain better focus yet miserably more Strehl ratio decrement for increasing incident angles and NA implying worse Comatic aberrations.",
keywords = "Comatic aberration, Generalized Rayleigh-Sommerfeld diffraction integral, Metasurface, Phase levels, Strehl ratio",
author = "Hongjun Chu and Jiaran Qi and Jinghui Qiu",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 ; Conference date: 07-07-2019 Through 12-07-2019",
year = "2019",
month = jul,
doi = "10.1109/APUSNCURSINRSM.2019.8889350",
language = "英语",
series = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "203--204",
booktitle = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
address = "美国",
}