Journal of the Optical Society of Korea

  • 제9권2호
  • /
  • Pages.74-78
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  • 2005
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Modeling of Defects Nucleation in the Inhomogeneous Liquid Crystal Director Field

  • Lee Gi-Dong (Department of Electronics Eng., Dong-A University) ;
  • Kim Jae Chang (Department of Electronics Eng., Pusan National University)
  • 투고 : 2004.11.15
  • 발행 : 2005.06.01
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초록

With the fast Q-tensor method, which can model the defect dynamics in a liquid crystal director field, the nucleation and dynamical behavior of defects is modeled. In order to model the defect, hormeotropic aligned liquid crystal cell with step inhomogeneous electrode which has a height of $1\;{\mu}m$ is used. From the simulation, we can observe the nucleation and line of the defect from surface inhomogeneity and the experiment is performed for confirmation. The experimental result is compared with numerical modeling in order to verify the simulation of the defect nucleation.

키워드

참고문헌

  1. G.-D. Lee, J. Anderson and P. J. Bos, 'Fast Q-tensor method for modeling liquid crystal director configurations with defects,' Appli. Phys. Lett. vol. 81, no. 21 pp. 3951-3953, 2002 https://doi.org/10.1063/1.1523157
  2. G. D. Lee, P. J. Bos, S. H. Ahn, and K. H. Kim, 'Fast Q-tensor method for modeling the dynamics of defects in a liquid crystal director field,' Phys. Rev. E, vol. 67, pp. 41715-41721, 2003 https://doi.org/10.1103/PhysRevE.67.041715
  3. S. Dickmann: Ph. D. Dissertation, University Karlsruhe, Karlsruhe, Germany, 1995
  4. A. A. Sonin, The Surface Physics of Liquid Crystals, (Gordon and Breach Publishers, Newyork, USA), pp. 111-112
  5. H. Mori, E. C. Gartland, J. R. Kelly, and P. J. Bos, 'Multidimensional Director Modeling Using the Q Tensor Representation in a Liquid Crystal Cell and Its Application to the $\pi$ Cell with Patterned Electrodes,' Jpn. J. Appl. Phys. Vol. 38, no. 1A, pp. 135-146, 1999 https://doi.org/10.1143/JJAP.38.135
  6. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals (Clarendon Press, Newyork, USA, 1993), pp.165-185

피인용 문헌

  1. Plasma texturing of multicrystalline silicon for solar cell using remote-type pin-to-plate dielectric barrier discharge vol.42, pp.21, 2009, https://doi.org/10.1088/0022-3727/42/21/215201
  2. Light Leakage Induced by Spontaneous Distortion of the Nematic Director in Bulk Defect Structures vol.12, pp.4, 2016, https://doi.org/10.1109/JDT.2015.2493723