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kent1291069300.pdf (901.4 KB)
ETD Abstract Container
Abstract Header
Electro-optical effects of liquid crystals with dielectric dispersion
Author Info
Wonderly, Hugh Alan
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=kent1291069300
Abstract Details
Year and Degree
2010, MS, Kent State University, College of Arts and Sciences / Chemical Physics.
Abstract
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.
Committee
Oleg Lavrentovich, PhD (Advisor)
Sergij Shiyanovskii, PhD (Advisor)
Robin Selinger, PhD (Committee Member)
Antal Jakli, PhD (Other)
Pages
51 p.
Subject Headings
Physics
Keywords
dielectric dispersion
;
flexoelectric effect
;
liquid crystal
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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)
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Document number:
kent1291069300
Download Count:
1,233
Copyright Info
© 2010, all rights reserved.
This open access ETD is published by Kent State University and OhioLINK.