Abstract
This work demonstrates the feasibility of a microlens array (MLA) with a focal intensity that can be optically tuned by controlling the polarization of incident light. The proposed MLA has a focusing unit based on birefringent liquid crystalline polymer (LCP) and a tuning unit with a photo-alignment layer for controlling the polarization state of incident laser light. The optically variable refractive indices of LCP allow a positive or negative MLA to be realized by controlling the polarization of the incident light.
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Huang, SY., Tung, TC., Ting, CL. et al. Polarization-dependent optical tuning of focal intensity of liquid crystal polymer microlens array. Appl. Phys. B 104, 93–97 (2011). https://doi.org/10.1007/s00340-011-4498-z
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DOI: https://doi.org/10.1007/s00340-011-4498-z