Digital metasurface for wavefront modulation

Yan Zhang

doi:10.1117/12.2268981

26 June 2017 Digital metasurface for wavefront modulation

Yan Zhang

Proceedings Volume 10335, Digital Optical Technologies 2017; 103350N (2017) https://doi.org/10.1117/12.2268981
Event: SPIE Digital Optical Technologies, 2017, Munich, Germany

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.

Citation Download Citation

Yan Zhang "Digital metasurface for wavefront modulation", Proc. SPIE 10335, Digital Optical Technologies 2017, 103350N (26 June 2017); https://doi.org/10.1117/12.2268981

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