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Appl Opt. 2010 May 20;49(15):2778-83. doi: 10.1364/AO.49.002778.

Low aberrations symmetrical adaptive modal liquid crystal lens with short focal lengths.

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D├ępartement d'optique, Telecom Bretagne, CS 83818, 29238 Brest Cedex 3, France.


We describe the design, fabrication, and characterization of modal liquid crystal lenses (MLCLs) with a symmetrical electrode structure using a resistive composite polymer, poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS). We achieved MLCLs with shorter focal lengths (up to 1cm), shorter apertures (1 to 5mm), and lower aberrations compared to other MLCLs. We demonstrate a very uniform conductivity distribution in the PEDOT-PSS layers over a wide resistivity range (100kOmega/sq-10MOmega/sq) combined with a symmetrical electrode structure, enabling us to manufacture MLCLs with short f-numbers, large depths of focus, and low aberrations.


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