Generation of multi-beam reflected from gradient-index metasurfaces
- Authors
- Hoang, T. V.; Lee, J. H.
- Issue Date
- Sep-2018
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- RESULTS IN PHYSICS, v.10, pp.424 - 426
- Journal Title
- RESULTS IN PHYSICS
- Volume
- 10
- Start Page
- 424
- End Page
- 426
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/3264
- DOI
- 10.1016/j.rinp.2018.06.052
- ISSN
- 2211-3797
- Abstract
- Many recent metasurfaces, consisting of one or two-dimensional artificial structures with subwavelength unit cells, have been designed to manipulate optical waves by achieving the 2 pi continuous phase gradients. In this paper, a method to transfer and control multi-beam reflections from a normal incident wave using a gradient-index metasurface is presented. By tuning properly the phase difference over the gradient-index metasurface, multi-beam anomalous reflections can be achieved, where the beam wavefronts are fully controlled by the refractive index distribution. The theoretical and simulated results show that some excellent multi-beam anomalous reflections are demonstrated by field distribution and radiation pattern of scattering field. Our method may help to offer a new design methodology for multi-beam steering in many interesting optics and microwave applications.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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