| Issue |
J. Phys. II France
Volume 6, Number 9, September 1996
|
|
|---|---|---|
| Page(s) | 1291 - 1300 | |
| DOI | https://doi.org/10.1051/jp2:1996131 | |
DOI: 10.1051/jp2:1996131
J. Phys. II France 6 (1996) 1291-1300
Physics Department, University of the West Indies Cave Hill, Barbados, West Indies
© Les Editions de Physique 1996
J. Phys. II France 6 (1996) 1291-1300
Electric Field Effects on the Pretransitional Optical Activity of CB15
Carlos Hunte, Upindranath Singh and Peter GibbsPhysics Department, University of the West Indies Cave Hill, Barbados, West Indies
(Received 17 January 1996, revised 4 April 1996, accepted 30 May 1996)
Abstract
The influence of applied electric fields on the pretransitional optical activity (
) in the
chiral nematic 4-cyano-4-(2-methyl)butylphenyl (CB15) was investigated. A rotating analyzer system
was used to measure the optical activity and fields up to 800 kV/m were applied. The zero-field
results are consistent with theoretical predictions and contributions from the
m=2 mode to
are evident in the data. Large electric fields destroyed the contributions from the
m=2 mode.
© Les Editions de Physique 1996