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\bibitem{Lee_etal2005} Lee, J. - H., Kim, D. - W., Wu, Y. - H., Yu, C. - J., Lee, S. - D., \& Wu, S. - T. (2005). High-speed infrared phase modulators using short helical pitch ferroelectric liquid crystals. \textit{Opt. Express}, \textit{13}(20), 7732.

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