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A liquid crystalline polymer microlens array with tunable focal intensity by the polarization control of a liquid crystal layer
2007
Applied Physics Letters
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We propose a focal intensity tunable microlens array by using a birefringent liquid crystalline polymer for lensing action. Due to the difference of effective refractive indices, it acts as a positive or negative microlens with respect to the polarization state. As we control the incident polarization by adding a liquid crystal layer, the focal intensity can be tuned by an applied voltage. Twisted nematic and bistable ferroelectric liquid crystal modes were applied to demonstrate the
doi:10.1063/1.2813638
fatcat:lvetry4dwfb2lkelzxavupojka