Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures

Optical Materials Express

Volumn 1, Issue 8, 2011, Pages 1494-1501

  Jisha, Chandroth P ^a   Hsu, Kuei Chu ^b   Lin, YuanYao ^a   Lin, Ja Hon ^c   Chuang, Kai Ping ^d   Tai, Chao Yi ^e   Lee, Ray Kuang ^a  

^a NATIONAL TSING HUA UNIVERSITY   (Taiwan)

^b Unice E O Services Inc   (Taiwan)

^c NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY   (Taiwan)

^d INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE   (Taiwan)

^e NATIONAL CENTRAL UNIVERSITY   (Taiwan)

Author keywords

[No Author keywords available]

Indexed keywords

LIQUID CRYSTALS; LIQUIDS; MIXTURES; MONOMERS; POLYMERIZATION; SEPARATION; FEMTOSECOND LASERS;

DIFFUSION EQUATIONS; FEMTO-SECOND LASER; LIQUID CRYSTAL MONOMERS; MICROSCOPIC IMAGE; PATTERN FORMATION; PATTERN TRANSITIONS; POLYMER DISPERSED LIQUID CRYSTALS; POLYMER STRUCTURE;

PHASE SEPARATION;

EID: 84862233991     PISSN: None     EISSN: 21593930     Source Type: Journal    
DOI: 10.1364/OME.1.001494     Document Type: Article

References (25)

1. D. K. Yang and S. T. Wu, Fundamental of Liquid Crystal Devices (Wiley, 2006).
2. S. Moynihan, P. Lovera, D. O'Carroll, D. Iacopino, and G. Redmond, "Alignment and dynamic manipulation of conjugated polymer nanowires in nematic crystal hosts," Adv. Mater. 20, 2497-2502 (2008).
3. H. Tanaka, "Formation of network and cellular structures by viscoelastic phase separation," Adv. Mater. 21, 1872-1880 (2009).
4. H. Kikuchi, M. Yokota, Y. Hisakado, H. Yang, and T. Kajiyama, "Polymer-stabilized liquid crystal blue phases," Nat. Mater. 1, 64-68 (2002).
5. S.-Y. Lu and L.-C. Chien, "Electrically switched color with polymer-stabilized blue-phase liquid crystals," Opt. Lett. 35, 562-564 (2010).
6. J. Y. Kim, C. H. Cho, P. Palffy-Muhoray, M. Mustafa, and T. Kyu, "Polymerization-induced phase separation in a liquid-crystal-polymer mixture," Phys. Rev. Lett. 71, 2232-2235 (1993).
7. J. Y. Kim, H. Y. Woo, J. W. Baek, T. W. Kim, E. A. Song, S. C. Park, and D. W. Ihm, "Polymer-dispersed liquid crystal devices using highly conducting polymers as electrodes," Appl. Phys. Lett. 92, 183301 (2008).
8. H. Ren, S. T. Wu, and Y. H. Lin, "In situ observation of fringing-field-induced phase separation in a liquidcrystal-monomer mixture," Phys. Rev. Lett. 100, 117801 (2008).
9. E. A. Buyuktanir, M. W. Frey, and J. L. West, "Self-assembled, optically responsive nematic liquid crystal/ polymer core-shell fibers: Formation and characterization," Polymer 51, 4823-4830 (2010).
10. R. Sigel, G. Fytas, N. Vainos, S. Pispas, and N. Hadjichristidis, "Pattern formation in homogeneous polymer solutions induced by a continuous-wave visible laser," Science 297, 67-69 (2000).
11. S. Matsuo, S. Juodkazis, and H. Misawa, "Femtosecond laser microfabrication of periodic structures using a microlens array," Phys. Rev. A 80, 683-685 (2005).
12. Y. Ichihashi, P. Henzi, M. Bruendel, J. Mohr, and D. G. Rabus, "Polymer waveguides from alicyclic methacrylate copolymer fabricated by deep-UV exposure," Opt. Lett. 32, 379-381 (2007).
13. C. H. Lee, H. Yoshida, Y. Miura, A. Fujii, and M. Ozaki, "Local liquid crystal alignment on patterned micrograting structures photofabricated by two photon excitation direct laser writing," Appl. Phys. Lett. 93, 173509 (2008).
14. K. Tokuoka, H. Yoshida, Y. Miyake, C. H. Lee, Y. Miura, S. Yusuke, F. Satoshi, A. Fujii, Y. Shimizu, M. Ozaki, "Planar alignment of columnar liquid crystals in microgroove structures," Mol. Cryst. Liq. Cryst. 510, 126-133 (2009).
15. Data Sheet Licristal®E7, (Merck KGaA, Germany, 2001)
16. N. Gheorghiu, J. L. West, A. V. Glushchenko, and M. Mitrokhin, "Patterned field induced polymer walls for smectic A bistable flexible displays," App. Phys. Lett. 88, 263511 (2006).
17. Yu. S. Kivshar and D. E. Pelinovsky, "Self-focusing and transverse instabilities of solitary waves," Phys. Rep. 331, 117-195 (2000).
18. Y. Y. Lin, R.-K. Lee, and Yu. S. Kivshar, "Soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576-581 (2008).
19. Y. Y. Lin, R.-K. Lee, and Yu. S. Kivshar, "Transverse instability of TM solitons and nonlinear surface plasmons," Opt. Lett. 34, 2982-2984 (2009).
20. C. C. Bowley and G. P. Crawford, "Diffusion kinetics of formation of holographic polymer-dispersed liquid crystal display materials," Appl. Phys. Lett. 76, 2235-2237 (2000).
21. P. Rathi and T. Kyu, "Theory and computation of photopolymerization-induced phase transition and morphology development in blends of crystalline polymer and photoreactive monomer," Phys. Rev. E 79, 031802 (2009).
22. Q.Wang, D. Zhang, Y. Huang, Z. Ni, J. Chen, Y. Zhong, and S. Zhuang, "Type of tunable guided-mode resonance filter based on electro-optic characteristic of polymer-dispersed liquid crystal," Opt. Lett. 35, 1236-1238 (2010).
23. P. G. D. Gennes and J. Prost, The Physics of Liquid Crystals (Oxford University Press, 1995).
24. S. R. Challa, S-Q. Wang, and J. L. Koenig, "In situ diffusion studies using spatially resolved infrared microspectroscopy," Appl. Spectrosc. 50, 1339-1344 (1996).
25. C.-C. Jeng, Y. Y. Lin, R.-C. Hong, and R.-K. Lee, "Optical pattern transitions from modulation to transverse instabilities in photorefractive crystals," Phys. Rev. Lett. 102, 253905 (2009).