Infrared and Laser Engineering, Volume. 49, Issue 9, 20201031(2020)
Complex amplitude modulation of light fields based on dielectric metasurfaces and its applications
Fig. 4. (a-c) Experimentally reconstructed holographic patterns at the wavelengths of 633 nm, 532 nm, and 488 nm, respectively; (d) Picture quality evaluation indices. OP: Original pattern, SP: numerically reconstructed pattern, EP: experimentally reconstructed pattern. The pentagrams in the graph depict the picture quality evaluation indices of the GS algorithm with 50 iterations; (e) Annual amplitude and first-order vortex phase (inset) distributions of target field; (f) Observed interferogram and demodulated amplitude (upper inset) and phase (lower inset) distributions
Fig. 5. (a) Schematic of generating polarization-switchable optical vortex topologies via a holographic all-dielectric metasurface; (b) and (d), (c) and (e) Interferograms and reconstructed intensity and phase (insets) distributions of Trefoil knotted and Hopf linked fields at the
Fig. 6. (a) Transmission amplitudes of selected geometries for the amplitude modulation; (b) Amplitude and phase distributions of the mask generated from spatial spectrum optimization; (c), (d) Experimentally measured 3D intensity distributions of two non-diffractive fields with uniform and oscillating profiles, respectively
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Xuyue Guo, Bingjie Li, Xinhao Fan, Jinzhan Zhong, Sheng Liu, Bingyan Wei, Peng Li, Jianlin Zhao. Complex amplitude modulation of light fields based on dielectric metasurfaces and its applications[J]. Infrared and Laser Engineering, 2020, 49(9): 20201031
Category: Special issue-Metasurface empowered manipulation of wavefront
Received: Jun. 11, 2020
Accepted: --
Published Online: Jan. 4, 2021
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