Time-resolved anisotropic multiple light scattering in nematic liquid crystals

Citation
Ds. Wiersma et al., Time-resolved anisotropic multiple light scattering in nematic liquid crystals, PHYS REV L, 83(21), 1999, pp. 4321-4324
Citations number
30
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
21
Year of publication
1999
Pages
4321 - 4324
Database
ISI
SICI code
0031-9007(19991122)83:21<4321:TAMLSI>2.0.ZU;2-0
Abstract
Anisotropic multiple scattering of light is studied in monodomain nematic l iquid crystals. In particular, the anisotropy of the diffusion constant is observed in time-resolved experiments. It is discussed how dynamic vs stati c experiments probe different properties: static experiments reveal the ave rage step length of the random walk (transport mean free path), while dynam ic experiments give the time evolution of the diffusion process (diffusion constant). For the time-resolved data, good agreement is found with (anisot ropic) diffusion theory.