Fully-Leaky Guided Mode Studies of Inverse Twisted Nematic Liquid Crystal

Zhi Dong Zhang; Nai Fu Wu; Wen Jiang Ye; Xuan Zhou

doi:10.4028/www.scientific.net/AMR.718-720.1766

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 718-720Fully-Leaky Guided Mode Studies of Inverse Twisted...

Fully-Leaky Guided Mode Studies of Inverse Twisted Nematic Liquid Crystal

Abstract:

The fully-leaky waveguide technique has been used to explore the director of inverse twisted nematic liquid crystal cell. The reflection data, including all the polarization-conserving signals Rpp and Rss as well as the polarization-conversion signals Rsp and Rps, are recorded under various voltages applied to the cell of 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, and 7.0V (rms), at a frequency of 1kHz. We found that this technique was sensitive to the director changes, especially for the polarization-conversion signals. Then by fitting angle-dependent reflectivity data to modeling theory, the arrangement of the director and some importance parameters of liquid crystal cell are obtained. It is proved that the reflectivity of fully-leaky waveguide mode can give the imperceptibility change in the cell.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

1766-1770

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.718-720.1766

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Online since:

July 2013

Authors:

Zhi Dong Zhang, Nai Fu Wu, Wen Jiang Ye, Xuan Zhou

Keywords:

Fully-Leaky Guided Mode, Inverse Twisted Nematic Cell, Negative Liquid Crystal, Polarisation-Conversion Signal

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References

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