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Electro-optical effects of liquid crystals with dielectric dispersion

Abstract Details

2010, MS, Kent State University, College of Arts and Sciences / Chemical Physics.
The dielectric dispersion in uniaxial nematic liquid crystals creates a “dielectric memory” effect whereby the polarization induced by the electric field decays exponentially with time rather than instantaneously, as in materials without dispersion. The induced polarization couples linearly with the electric field. This linear coupling allows one to accelerate the director relaxation towards the “off” state by a specially designed electric pulse of a proper polarity and duration We show theoretically and experimentally the possibility of electrically driving the director towards the off state, thereby decreasing the switching time. The effects, if any, of flexoelectric polarization on the response of the director are examined and found to be negligible.
Oleg Lavrentovich, PhD (Advisor)
Sergij Shiyanovskii, PhD (Advisor)
Robin Selinger, PhD (Committee Member)
Antal Jakli, PhD (Other)
51 p.

Recommended Citations

Citations

  • Wonderly, H. A. (2010). Electro-optical effects of liquid crystals with dielectric dispersion [Master's thesis, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1291069300

    APA Style (7th edition)

  • Wonderly, Hugh. Electro-optical effects of liquid crystals with dielectric dispersion. 2010. Kent State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1291069300.

    MLA Style (8th edition)

  • Wonderly, Hugh. "Electro-optical effects of liquid crystals with dielectric dispersion." Master's thesis, Kent State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1291069300

    Chicago Manual of Style (17th edition)