Acta Optica Sinica, Volume. 39, Issue 1, 0126016(2019)
Generation of Orbital Angular Momentum Vortex Beams Based on High-Efficiency Transmission Metasurfaces
The vortex beams carrying different topological values are generated based on the high efficiency transmission metasurfaces illuminated by quasi-spherical beams from standard horns. These metasurfaces are able to exhibit a transmission efficiency of over 90% in the bandwidth range of larger than 10% and an over 3-bit phase modulation. Through the theoretical derivation of a phase-compensation formula and the design of metasurfaces, high-order orbital angular momentum (OAM) vortex beams are generated on the high efficiency transmission metasurfaces at 30 GHz. The proposed scheme is verified by the full-wave simulation and the results agree well with the theoretical results.
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Kaiting Liu, Xin Liu, Yuehe Ge, Jixiong Pu. Generation of Orbital Angular Momentum Vortex Beams Based on High-Efficiency Transmission Metasurfaces[J]. Acta Optica Sinica, 2019, 39(1): 0126016
Category: Physical Optics
Received: Jul. 27, 2018
Accepted: Oct. 16, 2018
Published Online: May. 10, 2019
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