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Simulated optical activity, θ (solid lines), and ellipticity, η (dashed lines), for the switchable chiral structure under consideration . One can see the cases of silver (black lines) and photoconductive silicon with σSi = 1 × 105 S/m (red lines) or 1 × 103 S/m (green lines) or 2.5 × 10−4 S/m (blue lines), respectively. The inset shows the corresponding design in which grey color corresponds to photoconductive silicon and yellow corresponds to metal (silver).
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