THz time-domain spectroscopy of liquid crystal and liquid crystal colloid

PHYS 129

Masahito Oh-e, oh-e@nanolc.jst.go.jp1, Hiroshi Yokoyama, yokoyama-hiroshi@aist.go.jp1, Mattijs Koeberg2, Euan Hendry2, and Mischa Bonn2. (1) Liquid Crystal Nano-system Project, ERATO/SORST, Japan Science & Technology Agency, 5-9-9 Tokodai, Tsukuba, Ibaraki, 300-2635, Japan, (2) FOM Institute for Atomic and Molecular Physics AMOLF, Kruislaan 407, Amsterdam, 1098 SJ, Netherlands
THz time-domain spectroscopy is used to measure the frequency dependent refractive indices of a pure liquid crystal and its colloids with SiO2 particles. While the refractive index of the pure LC is found to vary markedly due to distinct orientated domains, the LC colloids provide us with very stable and reproducible spectra, from which the optical functions of the pure LC can be deduced.
 

Spectroscopy, Chemistry, and Imaging through Nanophotonics
8:20 AM-12:00 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. 340/341, Oral

Division of Physical Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008