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Fabrication of planar metamaterial quarter waveplates demonstrates effective polarization control with silicon waveguides.
We present the design, fabrication, and characterization of planar metamaterial quarter waveplates for left hand circular polarization integrated with silicon waveguides and vertical grating couplers, demonstrating an average S3 of -0.95 across the output beam.
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Reinke et al. (2025) studied this question.
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