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Huang, S.-Y.; Tung, T.-C.; Ting, C.-L.; Jau, H.-C.; Li, M.-S.; Hsu, H.-K.; Fuh, A. Y.-G.
Applied physics. B, Lasers and optics, 07/2011, Letnik: 104, Številka: 1Journal Article
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.
