Ferroelectric liquid crystal geometric phase device and preparation system and preparation method thereof
A ferroelectric liquid crystal and preparation system technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of high driving voltage, difficult material preparation and processing, response time only in the order of milliseconds, etc., to achieve high driving voltage requirements, Avoid the effects of high precision requirements and simple system configuration
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[0035] A ferroelectric liquid crystal geometric phase device, such as figure 1 As shown, it includes two oppositely arranged glass substrates 2, a photo-control alignment layer 3 located on opposite surfaces of the glass substrates, and a ferroelectric liquid crystal layer 4 located between the glass substrates.
[0036] From figure 1 It can be seen that the ferroelectric liquid crystal layer 4 is composed of ferroelectric liquid crystal molecules with a helical structure, the helical axis pointing structure of the ferroelectric liquid crystal is a geometric phase device structure, and the pitch of the liquid crystal molecular layers is 5 μm.
[0037] The molecular orientation of the optical alignment layer is determined by a ferroelectric liquid crystal optical alignment system based on a spatial light modulator, and its direction is the same as that of liquid crystal molecules or helical axes, and perpendicular to the polarization direction of polarized light.
[0038] The ...
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