Determination of birefringence dispersion in nematic liquid crystals by using an S-transform

Ozder S., COŞKUN E., Koysal O., Kocahan O.

OPTICS LETTERS, vol.32, no.14, pp.2001-2003, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 14
  • Publication Date: 2007
  • Doi Number: 10.1364/ol.32.002001
  • Journal Name: OPTICS LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2001-2003
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

An analysis of the transmittance signal of the 5CB-coded nematic liquid crystal by using an S-transform is presented. The transmittance spectrum of this liquid crystal is acquired in the 1.26-2.22 mu m(-1) region at room temperature. The dispersion curve of birefringence is obtained for 5CB by this analysis, and data are fitted to the Cauchy formula, whereby the dispersion parameters are extracted. The result is found to be in favorable accordance with the Merck catalog value. (c) 2007 Optical Society of America.