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Journal Publications: Y. Q. Lu, F. Du, and S. T. Wu “Polarization switch using thick holographic polymer-dispersed liquid crystal grating” J. Appl. Phys. 95, 810-5 (Feb. 1, 2004) J. Li and S. T. Wu “Extended Cauchy equations for the refractive indices of liquid crystals” J. Appl. Phys. 95, 896-901 (Feb. 1, 2004) H. W. Ren, Y. H. Fan, S. Gauza, and S. T. Wu “Tunable microlens arrays using polymer network liquid crystal" Opt. Comm. 230, 267-271 (Feb. 1, 2004). H. W. Ren, Y. H. Fan, and S. T. Wu “Polymer network liquid crystal for tunable microlens arrays" J. Phys. D: Appl. Phys. 37, 400-403 (Feb. 7, 2004). H. W. Ren, Y. H. Fan, S. Gauza, and S. T. Wu “Tunable-focus cylindrical liuid crystal lens" Jpn. J. Appl. Phys. 43, 652-653 (Feb. 15, 2004). Y. H. Fan, Y. H. Lin, H. W. Ren, S. Gauza, and S. T. Wu “Fast-response and scattering-free polymer network liquid crystals" Appl. Phys. Lett. 84, 1233-5 (Feb. 23, 2004). Y. H. Huang, S. T. Wu, and Y. Zhao “All-optical switching characteristics in bacteriorhodopsin and its applications in integrated optics" Opt. Express 12, 895-906 (March 8, 2004). Y. H. Huang, S. T. Wu, and Y. Zhao “Photonic switching based on the photo-induced birefringence in bacteriorhodopsin" Appl. Phys. Lett. 84, 2028-30 (March 22, 2004). Y. Q. Lu, C. Wong, and S. T. Wu “Liquid crystal-based Fourier optical spectrum analyzer” IEEE Photonics Technology Lett. 16, 861-3 (March 2004) Y. Q. Lu, F. Du, Y. H. Lin, and S. T. Wu “Variable optical attenuator based on polymer-stabilized twisted nematic liquid crystal” Opt. Express 12, 1221-7 (April 5, 2004). Q. H. Wang, T. X. Wu, X. Y. Zhu, and S. T. Wu “Achromatic polarization switch using a twisted nematic liquid crystal” Liq. Cryst. 31, 535-539 (April 2004) C. O. Catanescu, S. T. Wu, and L. C. Chien “Tailoring the physical properties of some high birefringence isothiocyanato-based liquid crystals” Liq. Cryst. 31, 541-555 (April 2004) J. Li, S. Gauza, and S. T. Wu “High temperature-gradient refractive index liquid crystals" Opt. Express 12, 2002-10 (May 3, 2004). Y. H. Lin, H. W. Ren, and S. T. Wu “High contrast polymer-dispersed liquid crystal in a 90^o twisted cell" Appl. Phys. Lett. 84, 4083-5 (May 3, 2004). C. O. Catanescu, L. C. Chien, and S. T. Wu “High birefringence nematic liquid crystals for display applications" Mol. Cryst. Liq. Cryst. 411, 93-102 (May 2004) P. T. Lin, S. T. Wu, C. Y. Chang, and C. S. Hsu “UV stability of high birefringence liquid crystals" Mol. Cryst. Liq. Cryst. 411, 243-253 (May 2004) H. Y. Wang, T. X. Wu, X. Y. Zhu, and S. T. Wu “Correlations between liquid crystal director reorientation and optical response time of a homeotropic cell” J. Appl. Phys. 95, 5502-8 (May 15, 2004) H. W. Ren, Y. H. Fan, S. Gauza, and S. T. Wu “Tunable-focus flat liquid crystal spherical lens" Appl. Phys. Lett. 84, 4789-91 (June 7, 2004).  X. Y. Zhu, and S. T. Wu “Normally black reflective twisted nematic cell for microdisplay application” J. Appl. Phys. 95, 7660-4 (June 15, 2004) Y. P. Huang, H. P. Shieh, and S. T. Wu “Applications of multidirectional asymmetric microlens array light control films on reflective liquid crystal displays for image quality enhancement" Appl. opt. 43, 3656-63 (June 20, 2004) J. Li, S. Gauza, and S. T. Wu “Temperature effect on the liquid crystal refractive indices” J. Appl. Phys. 96, 19-24 (July 1, 2004) J. Li and S. T. Wu “Two-coefficient Cauchy model for low birefringence liquid crystals” J. Appl. Phys. 96, 170-4 (July 1, 2004) H. W. Ren, Y. H. Fan, and S. T. Wu “Liquid crystal microlens arrays using patterned polymer networks" Opt. Lett. 29, 1608-10 (July 15, 2004). Y. H. Huang, G. Siganakis, M. Q. Moharam, and S. T. Wu “All-optical display using photo-induced anisotropy in a bacteriorhodopsin film" Opt. Lett. 29, 1933-5 (August 15, 2004). P. T. Lin, X. Liang, H. W. Ren, and S. T. Wu “Tunable diffraction grating using UV-induced spatial phase modulation in dual-frequency liquid crystal" Appl. Phys. Lett. 85, 1131-3 (August 16, 2004). F. Du, Y. Q. Lu, and S. T. Wu “Electrically tunable liquid crystal photonic crystal fiber" Appl. Phys. Lett. 85, 2181-3 (Sept. 20, 2004). Y. H. Fan, H. W. Ren, X. Liang, Y. H. Lin, and S. T. Wu “Dual-frequency liquid crystal gels with sub-millisecond response" Appl. Phys. Lett. 85, 2451-3 (Sept. 27, 2004). H. W. Ren, Y. H. Lin, Y. H. Fan, and S. T. Wu “In-plane switching liquid crystal gel for polarization independent light switch" J. Appl. Phys. 96, 3609-11 (Oct. 1, 2004). F. Du, Y. Q. Lu, H. W. Ren, S. Gauza, and S. T. Wu “Polymer-stabilized cholesteric liquid crystal for polarization independent variable optical attenuator" Jpn. J. Appl. Phys. 43, 7083-6 (Oct. 2004). S. Gauza, C. H. Wen, B. J. Tan, and S. T. Wu “UV stable high birefringence liquid crystals" Jpn. J. Appl. Phys. 43, 7176-80 (Oct. 2004). Y. Q. Lu, X. Liang, Y. H. Wu, F. Du, and S. T. Wu “Dual-frequency addressed hybrid-aligned liquid crystal" Appl. Phys. Lett. 85, 3354-6 (Oct. 18, 2004). S. Gauza, C. H. Wen, S. T. Wu, N. Janarthanan, and C. S. Hsu “Super high birefringence isothiocyanato biphenyl-bistolane liquid crystals" Jpn. J. Appl. Phys. 43, 7634-8 (Nov. 2004). C. H. Wen, S. Gauza, and S. T. Wu “Ultraviolet stability of liquid crystals containing cyano and isothiocyanato terminal groups" Liq. Cryst. 31, 1479-85 (Nov. 2004). T. T. Alkeskjold, J. Lagsgaard, A. Bjarklev, D. D. Hermann, J. Broeng, J. Li and S. T. Wu “All-optical modulation in dye-doped nematic liquid crystal photonic bandgap fibers" Opt. Express 12, 5857-5871 (Nov. 29, 2004). Y. H. Huang, G. Siganakis, M. Q. Moharam, and S. T. Wu “Broadband optical power limiter based on nonlinear photo-induced anisotropy in a bacteriorhodopsin film" Appl. Phys. Lett. 85, 5445-5447 (Nov. 29, 2004). J. Li and S. T. Wu “Self-consistency of Vuks equations for liquid crystal refractive indices" J. Appl. Phys. 96, 6253-8 (Dec. 1, 2004). Y. P. Huang, X. Y. Zhu, H. W. Ren, Q. Hong, T. X. Wu, S. T. Wu, M. Z. Su, M. X. Chan, S. H. Lin, and H. P. Shieh, “Full-color transflective cholesteric LCD with image-enhanced reflector" J. SID. 12, 417-422 (Dec. 2004). Y. H. Wu, Y. H. Lin, Y. Q. Lu, H. Ren, Y. H. Fan, J. R. Wu and S. T. Wu "Submillisecond response variable optical attenuator based on sheared polymer network liquid crystal" Opt. Express 12, 6377-6384 (Dec. 13, 2004). Conference Publications: Y. H. Fan, H. W. Ren and S. T. Wu, "Electrically controlled lens and prism using nanoscale polymer-dispersed and polymer-networked liquid crystals" Proc. SPIE 5289, 63-73 (2004). Y. H. Lin, H. W. Ren and S. T. Wu, “Twisted PDLC for high-contrast reflective display” SID Tech. Digest 35, 614-7 (2004). S. Gauza, C. H. Wen, B. Tan, Y. H. Wu, Y. H. Lin and S. T. Wu “High-birefringnece and low-viscosity isothiocyaniane liquid crystals and applications to 50-µs response switching device” SID Tech. Digest 35, 1304-7 (2004). Y. H. Fan, Y. H. Lin, H. Ren, S. Gauza and S. T. Wu,“ Fast-Response polymer network liquid crystals for optical communications” SID Tech. Digest 35, 1526-9 (2004) H. W. Ren, Y. H. Fan, Y. H. Lin, and S. T. Wu, “Getting in Tune: Tunable-focal-length liquid crystal lenses” (Feature article) OE Magazine, pp. 25-27 (September, 2004) Y. H. Lin, H. W. Ren, Y. H. Wu, X. Liang and S. T. Wu “High contrast reflective display using a polymer-dispersed liquid crystal”, 17th IEEE/LEOS Annual Meeting, pp. 39-40 (Puerto Rico, Nov. 8-11, 2004). Y. H. Fan, H. Ren, and S. T. Wu “Tunable-focus microlens arrays for display applications” 17th IEEE/LEOS Annual Meeting, pp. 41-42 (Puerto Rico, Nov. 8-11, 2004). Z. B. Ge, T. X. Wu, X. Y. Zhu, and S. T. Wu “Optical simulation of reflective liquid crystal displays with asymmetric incidence and exit angles” 17th IEEE/LEOS Annual Meeting, pp. 43-44 (Puerto Rico, Nov. 8-11, 2004).