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Proceedings Paper

Digital metasurface for wavefront modulation
Author(s): Yan Zhang
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Paper Abstract

Metasurface is a kind of matematerials with only two-dimensional distribution. By carefully arranging the shape and size of each subwavelength antenna, the amplitude, phase, and polarization of reemitted light from the antenna can be artificially control. Eight antennas with same amplitude modulation and different phase modulation are selected to construct different devices. The phase modulations are selected as in the range of 0 to 2π with a step of π/4. Several devices, such as lens, holograms, pure phase elements, are designed, fabricated, and characterized in the terahertz range. Experiment results demonstrate the validity of this new approach.

Paper Details

Date Published: 26 June 2017
PDF: 7 pages
Proc. SPIE 10335, Digital Optical Technologies 2017, 103350N (26 June 2017); doi: 10.1117/12.2268981
Show Author Affiliations
Yan Zhang, Capital Normal Univ. (China)

Published in SPIE Proceedings Vol. 10335:
Digital Optical Technologies 2017
Bernard C. Kress; Peter Schelkens, Editor(s)

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