-A A +A
A commercial variable angle spectroscopic ellipsometer from J. A. Woollam Company is modified in order to make possible measurements in guiding structures. The half leaky guided mode technique is realised for liquid crystal optical dispersion measurements. Features and problems related to experimental data interpretation and error sources in the refractive index measurements are carefully analyzed, achieving a final accuracy of ±0.0002. We present the measured optical dispersion curves in the wavelength range from 0.5 to 1.7 μm for two widely studied liquid crystals, namely E7 and 5CB.
Taylor & Francis Group
Publication date: 
1 Sep 2006

Volodymyr Tkachenko, Giancarlo Abbate, Antigone Marino, Francesco Vita, Michele Giocondo, Alfredo Mazzulla, Federica Ciuchi, Luca De Stefano

Biblio References: 
Volume: 454 Issue: 1 Pages: 263/[665]-271/[673]
Molecular Crystals and Liquid Crystals