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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 15467–15472

Temperature-independent pitch invariance in cholesteric liquid crystal

Kyoo Sung Shim, Jeong Uk Heo, Soo In Jo, You-Jin Lee, Hak-Rin Kim, Jae-Hoon Kim, and Chang-Jae Yu  »View Author Affiliations

Optics Express, Vol. 22, Issue 13, pp. 15467-15472 (2014)

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We report a pitch invariance in cholesteric liquid crystals (CLCs) independent of temperature by mixing two chiral dopants. One dopant tends to shorten the helical pitch of the CLC, but the other makes the pitch longer, with increasing temperatures. From an analysis of temperature dependencies of the pitch for each dopant, we determined the mixing ratio of two chiral dopants for the pitch invariance. Finally, we obtained the pitch-invariant CLCs to temperature and the helical twisting power of the mixed dopant was estimated.

© 2014 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: May 7, 2014
Revised Manuscript: June 10, 2014
Manuscript Accepted: June 11, 2014
Published: June 17, 2014

Kyoo Sung Shim, Jeong Uk Heo, Soo In Jo, You-Jin Lee, Hak-Rin Kim, Jae-Hoon Kim, and Chang-Jae Yu, "Temperature-independent pitch invariance in cholesteric liquid crystal," Opt. Express 22, 15467-15472 (2014)

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  1. P. G. de Gennes and J. Prost, The Principle of Liquid Crystals (Oxford University Press, 1993).
  2. J. Chen, S. M. Morris, T. D. Wilkinson, and H. J. Coles, “Reversible color switching from blue to red in a polymer stabilized chiral nematic liquid crystals,” Appl. Phys. Lett.91(12), 121118 (2007). [CrossRef]
  3. G. de Filpo, F. P. Nicoletta, and G. Chidichimo, “Cholesteric emulsions for colored displays,” Adv. Mater.17(9), 1150–1152 (2005). [CrossRef]
  4. H. Xianyu, T.-H. Lin, and S.-T. Wu, “Rollable multicolor display using electrically induced blueshift of a cholesteric reactive mixture,” Appl. Phys. Lett.89(9), 091124 (2006). [CrossRef]
  5. S.-Y. Lu and L.-C. Chien, “A polymer-stabilized single-layer color cholesteric liquid crystal display with anisotropic reflection,” Appl. Phys. Lett.91(13), 131119 (2007). [CrossRef]
  6. K.-S. Bae, Y.-J. Jang, Y.-K. Moon, S.-G. Kang, U. Cha, C.-J. Yu, J. E. Jang, J. E. Jung, and J.-H. Kim, “Multicolor cholesteric liquid crystal display in a single-layered configuration using a multi-pitch stabilizations,” Jpn. J. Appl. Phys.49(8), 084103 (2010). [CrossRef]
  7. L. Kutulya, V. Vashchenko, G. Semenkova, and N. Shkolnikova, “Effect of chiral dopants molecular structure on temperature dependencies of induced cholesteric helical pitch,” Mol. Cryst. Liq. Cryst. (Phila. Pa.)331, 583–591 (1999).
  8. P. N. Keating, “Theory of the cholesteric mesophase,” Mol. Cryst. Liq. Cryst. (Phila. Pa.)8, 315–326 (1969).
  9. Y. Huang, Y. Zhou, C. Doyle, and S.-T. Wu, “Tuning the photonic band gap in cholesteric liquid crystals by temperature-dependent dopant solubility,” Opt. Express14(3), 1236–1242 (2006). [CrossRef] [PubMed]
  10. F. Zhang and D. K. Yang, “Temperature dependence of pitch and twist elastic constant in a cholesteric to smectic A phase transition,” Liq. Cryst.29(12), 1497–1501 (2002). [CrossRef]
  11. V. A. Belyakov, I. W. Stewart, and M. A. Osipov, “Dynamics of jumpwise temperature pitch variations in planar cholesteric layers for a finite strength of surface anchoring,” Sov. Phys. JETP99(1), 73–82 (2004). [CrossRef]
  12. Y. C. Liao, J. C. Yang, J. W. Shiu, Y. S. Tsai, S. H. Liu, C. J. Chen, C. C. Hsu, W. C. Chen, Y. P. Chang, and R. L. Sun, “Flexible color cholesteric LCD with single-layer structure,” in Digest of Technical Papers of 2008 Society for Information Display International Symposium (Society for Information Display, 2008), pp. 845–848/ [CrossRef]

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