Voltage-assisted photoaligning effect of an azo dye doped in a liquid crystal with negative dielectric anisotropy

Optics Express

Volumn 18, Issue 19, 2010, Pages 19914-19919

  Yang, Kuang Yu ^a   Lee, Wei ^a  

^a CHUNG YUAN CHRISTIAN UNIVERSITY   (Taiwan)

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; AZO DYES; LIQUID CRYSTALS;

ABSORBANCES; AZIMUTHAL DIRECTION; DYE MOLECULE; LASER EXPOSURE; NEGATIVE DIELECTRIC ANISOTROPY; ORIENTATIONAL ORDERS; PHOTO-ALIGNMENT; POLARIZATION DIRECTION; PRE-TILT ANGLE; PRETILT;

ALIGNMENT;

AZO COMPOUND; COLORING AGENT;

ANISOTROPY; ARTICLE; CHEMISTRY; ELECTRIC CONDUCTIVITY; ELECTROMAGNETIC FIELD; EQUIPMENT; EQUIPMENT DESIGN; INSTRUMENTATION; LIQUID CRYSTAL; METHODOLOGY; RADIATION EXPOSURE; REFRACTOMETRY;

ANISOTROPY; AZO COMPOUNDS; COLORING AGENTS; ELECTRIC CONDUCTIVITY; ELECTROMAGNETIC FIELDS; EQUIPMENT DESIGN; EQUIPMENT FAILURE ANALYSIS; LIQUID CRYSTALS; REFRACTOMETRY;

EID: 77956988591     PISSN: None     EISSN: 10944087     Source Type: Journal    
DOI: 10.1364/OE.18.019914     Document Type: Article

References (12)

1. V. G. Chigrinov, V. M. Kozenkov, and H. S. Kwok, Photoalignment of Liquid Crystalline Materials: Physics and Applications (Wiley, 2008).
2. T.-J. Chen, and K.-L. Chu, "Pretilt angle control for single-cell-gap transflective liquid crystal cells," Appl. Phys. Lett. 92(9), 091102 (2008).
3. L. Komitov, C. Ruslim, Y. Matsuzawa, and K. Ichimura, "Photoinduced anchoring transitions in a nematic doped with azo dyes," Liq. Cryst. 27(8), 1011-1016 (2000).
4. W. M. Gibbons, P. J. Shannon, S.-T. Sun, and B. J. Swetlin, "Surface-mediated alignment of nematic liquid crystals with polarized laser light," Nature 351(6321), 49-50 (1991).
5. E. Ouskova, D. Fedorenko, Yu. Reznikov, S. V. Shiyanovskii, L. Su, J. L. West, O. V. Kuksenok, O. Francescangeli, and F. Simoni, "Hidden photoalignment of liquid crystals in the isotropic phase," Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 63(2 Pt 1), 021701 (2001).
6. A. Y.-G. Fuh, C.-C. Liao, K.-C. Hsu, and C.-L. Lu, "Laser-induced reorientation effect and ripple structure in dye-doped liquid-crystal films," Opt. Lett. 28(14), 1179-1181 (2003).
7. A. Y.-G. Fuh, C.-K. Liu, K.-T. Cheng, C.-L. Ting, C.-C. Chen, P. C.-P. Chao, and H.-K. Hsu, "Chao, and H.-K. Hsu, "Variable liquid crystal pretilt angles generated by photoalignment in homeotropically aligned azo dyedoped liquid crystals," Appl. Phys. Lett. 95(16), 161104 (2009).
8. F. J. Kahn, G. N. Taylor, and H. Schonhorn, "Surface-produced alignment of liquid crystals," Proc. IEEE 61(7), 823-828 (1973).
9. J. S. Gwag, S. H. Lee, K.-H. Park, W. S. Park, K.-Y. Han, C. G. Jhun, T.-H. Yoon, J. C. Kim, D.- Song, and D.- Shin, "Simple method for measuring the high pretilt angle of nematic liquid crystals," J. Appl. Phys. 93(8), 4936 (2003).
10. C.-Y. Tang, S.-M. Huang, and W. Lee, "Dielectric relaxation dynamics in a dual-frequency nematic liquid crystal doped with C.I. Acid Red 2," Dyes Pigm. in press., doi:10.1016/j.dyepig.2010.04.008.
11. D. W. Berreman, "Solid surface shape and the alignment of an adjacent nematic liquid crystal," Phys. Rev. Lett. 28(26), 1683-1686 (1972).
12. J. Fukuda, M. Yoneya, and H. Yokoyama, "Consistent numerical evaluation of the anchoring energy of a grooved surface," Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 79(1 Pt 1), 011705 (2009).