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Schematic of the LC–polymer composite optical switch. The and polarization are also sketched.
Diffraction and transmission efficiency as a function of applied electric field. The sum refers to the sum of diffraction and transmission efficiencies.
The SEM image of the grating with LC removed.
Variation of diffracted light intensity corresponding to a square driving voltage (a), and the magnified rising edge (b), and the falling edge (c) of (a).
Diffraction efficiency as a function of incident angle for - (a) and -polarized (b) light.
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