7 September 2011 Nanoparticle-doped isotropic liquid crystals
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We demonstrate a new material composed of isotropic liquid crystal (ILC) blended with semiconductor nanoparticles, which could result in a novel high-speed, multiple-notch broadband passive optical switch to selectively discriminate bands of electromagnetic radiation in intelligence, surveillance, or reconnaissance systems. The new material has been demonstrated high nonlinear 3rd order optical Kerr coefficients (light-induced refractive index change, n2) exceeding 100 times of classic nonlinear material CS2 with n2 = 1.2E-11 esu. Details of fabrication and experimental results are presented.
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Alexander Parfenov, Alexander Parfenov, Xiaowei Xia, Xiaowei Xia, Alireza Shapoury, Alireza Shapoury, Edward A. DeHoog, Edward A. DeHoog, Fang Zhang, Fang Zhang, Shilpa Pradhan, Shilpa Pradhan, Tin M. Aye, Tin M. Aye, Min-Yi Shih, Min-Yi Shih, Arlynn Z. Hall, Arlynn Z. Hall, Thomas M. Cooper, Thomas M. Cooper, } "Nanoparticle-doped isotropic liquid crystals", Proc. SPIE 8114, Liquid Crystals XV, 811404 (7 September 2011); doi: 10.1117/12.894197; https://doi.org/10.1117/12.894197

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