In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 3R ( 1999-03-01), p. 1474-
Abstract:
The molecular motion during V-shaped
switching in a homogeneously aligned smectic C * -like liquid
crystal (LC) cell has been investigated by measuring the effective optical anisotropy Δ n eff ,
apparent tilt angle θ app , switching current, and second-harmonic
generation and comparing them with the simulated results based on two extreme models, i.e., random model and collective model, where molecules
switch randomly and collectively, respectively. The comparison revealed that the collective switching motion of LC molecules
is more reasonable than the random motion. Moreover, it was also confirmed that the observed infrared
absorption anisotropy of the phenyl stretching mode due to LC molecular distributions strongly supports the collective model.
From these results, it was demonstrated that LC molecules do not switch randomly but all the LC molecules rotate
collectively on a cone under the driving field.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.1474
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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