Anchoring effect on switching dynamics of a nematic liquid crystal intensity modulator
OPTICS COMMUNICATIONS, cilt.285, sa.3, ss.284-287, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 285 Sayı: 3
- Basım Tarihi: 2012
- Doi Numarası: 10.1016/j.optcom.2011.09.019
- Dergi Adı: OPTICS COMMUNICATIONS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.284-287
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
The director reorientation relaxation time of a novel nematic liquid crystal is measured through fitting the decay curve of intensity modulation by Ericksen-Leslie equation. Application of the so-called hard anchoring condition results in simplifying the mentioned equation as well as ignoring the reorientation of boundary molecules in switching procedure. This paper investigates the hardness of 1294-1b nematic liquid crystal's anchoring on rubbed PVA and the effect of boundary molecules on response time and viscoelastic coefficient calculation by experimentally obtaining the decay times of different sample thicknesses. (C) 2011 Elsevier B.V. All rights reserved.