Experimental Study of Tunable Layout Printed Fresnel Lens Structure Based on Dye Doped Liquid Crystal
In this article, we present a layout printing way for producing Fresnel zone on 1294-1b doped liquid crystal with Methyl-Red azo dye. We made a Fresnel zone mask with 25 zones and radius of 5 mm using lithography technique. With layout printing way, we recorded mask’s pattern on cell with λ=532 nm solid-state diode pump laser. By recording Fresnel zone pattern on cell and making Fresnel pattern on the surface of cell, odd and even zones, will form. The printed pattern, because of Azo dye’s photoisomerization, was permanent. Experimentally, we saw focal length tunability from 32 cm to 43 cm.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1316764Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 510
 H. Jashnsaz, E. Mohajerani, H. Nemati, S. H. Razavi, and I. A. Alidokht, “Electrically switchable holographic liquid crystal/polymer Fresnel lens using a Michelson interferometer.,” Appl. Opt., vol. 50, no. 17, pp. 2701–2707, 2011.
 P.-N. Rong, “Polymer-Stabilized Blue-Phase Liquid-Crystal Fresnel Lens Cured by Patterned Light Using a Spatial Light Modulator † Na Rong , Yan Li *, Yachao Yuan , Xiao Li , Pengcheng Zhou , Shuaijia Huang , Shuxin Liu , Jiangang Lu , and Yikai Su *,” vol. 257, pp. 1636–1638, 2016.
 A. K. Srivastava et al., “Micro-patterned photo-aligned ferroelectric liquid crystal Fresnel zone lens,” Opt. Lett., vol. 40, no. 8, pp. 1643–1646, 2015.
 W. Hung, T. Liu, and M. Tsai, “Voltage-controllable liquid crystals lens,” World Acad. Sci., Eng. …, vol. 1, no. 7, pp. 846–849, 2011.
 . Pishnyak, S. Sato, and O. D. Lavrentovich, “Electrically tunable lens based on a dual-frequency nematic liquid crystal,” Appl. Opt., vol. 45, no. 19, p. 4576, 2006.
 C.-C. Lee, “Optical interference coatings for optics and photonics (Invited),” Appl. Opt., vol. 52, no. 1, pp. 73–81, 2013.
 D.-W. Kim, S.-D. Lee, and C.-J. Yu, “Electrically Controlled Diffraction Efficiency of Liquid Crystal Fresnel Lens with Polarization-Independence,” Mol. Cryst. Liq. Cryst., vol. 476, pp. 133–140, 2007.
 F. Moghadas, H. Khoshsima, and B. Olyaeefar, “High diffraction efficiency in permanent optical memories based on Methyl Red doped liquid crystal,” Opt. Quantum Electron., vol. 47, no. 2, pp. 225–233, 2014.
 K. Milanchian, E. Abdi, H. Tajalli, S. Ahmadi K., and M. S. Zakerhamidi, “Nonlinear refractive index of some anthraquinone dyes in 1294-1b liquid crystal,” Opt. Commun., vol. 285, no. 5, pp. 761–765, 2012.
 Y. Suzuki, A. Takeuchi, H. Takano, and H. Takenaka, “Performance Test of Fresnel Zone Plate with 50\,nm Outermost Zone Width in Hard X-ray Region,” Jpn. J. Appl. Phys., vol. 44, no. 4A, pp. 1994–1998, 2005.