Photoacoustic and photopyroelectric measurements of aligned octylcyano-biphenyl (8CB) liquid crystal samples

E. Schoubs; H. Mondelaers; J. Thoen

doi:doi:10.1051/jp4:1994761

Issue		J. Phys. IV France Volume 04, Number C7, Juillet 1994 8th International Topical Meeting on Photoacoustic and Photothermal Phenomena 8 ITMP³ / 8éme conférence internationale de photoacoustique et photothermique


Page(s)		C7-257 - C7-260
DOI		https://doi.org/10.1051/jp4:1994761

8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP³ / 8éme conférence internationale de photoacoustique et photothermique

J. Phys. IV France 04 (1994) C7-257-C7-260
DOI: 10.1051/jp4:1994761

Photoacoustic and photopyroelectric measurements of aligned octylcyano-biphenyl (8CB) liquid crystal samples

E. Schoubs, H. Mondelaers and J. Thoen

Laboratorium voor Akoestiek en Warmtegeleiding, Departement Natuurkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium

Abstract
Thermal properties of homogeneously aligned 8CB samples have been derived from photoacoustic and photopyroelectric measurements. Special attention is given to the heat transport parallel and perpendicular to the long molecular axes. A new accurate technique for measuring high optical absorption coefficients is also presented.