Abstract
We address the reorientational optical nonlinearity of homogeneously aligned neamtic liquid-crystal (NLC) cells. The propagation of light in NLC cells depend strongly on temperature. At a temperature approaching the clearing point, an undulating beam and multifocal points are observed in the NLC cell by use of a polarizing optical microscope. Using a conoscopic technique, we observed novel consecutive concentric and parabolic patterns projected onto a screen. Optical energy is considered to compete with thermal energy to affect NLC's orientation and to generate singularities in the steady state. A model of the configuration of the liquid crystal's orientation is proposed.
| Original language | English |
|---|---|
| Pages (from-to) | 2357-2359 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 28 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2003 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Reorientational optical nonlinearity of nematic liquid-crystal cells near the nematic-isotropic phase transition temperature. / Tsai, Ming Shan; Jiang, I. Min; Huang, Chi Yen; Shih, Chia Chi.
In: Optics Letters, Vol. 28, No. 23, 01.12.2003, p. 2357-2359.Research output: Contribution to journal › Article
TY - JOUR
T1 - Reorientational optical nonlinearity of nematic liquid-crystal cells near the nematic-isotropic phase transition temperature
AU - Tsai, Ming Shan
AU - Jiang, I. Min
AU - Huang, Chi Yen
AU - Shih, Chia Chi
PY - 2003/12/1
Y1 - 2003/12/1
N2 - We address the reorientational optical nonlinearity of homogeneously aligned neamtic liquid-crystal (NLC) cells. The propagation of light in NLC cells depend strongly on temperature. At a temperature approaching the clearing point, an undulating beam and multifocal points are observed in the NLC cell by use of a polarizing optical microscope. Using a conoscopic technique, we observed novel consecutive concentric and parabolic patterns projected onto a screen. Optical energy is considered to compete with thermal energy to affect NLC's orientation and to generate singularities in the steady state. A model of the configuration of the liquid crystal's orientation is proposed.
AB - We address the reorientational optical nonlinearity of homogeneously aligned neamtic liquid-crystal (NLC) cells. The propagation of light in NLC cells depend strongly on temperature. At a temperature approaching the clearing point, an undulating beam and multifocal points are observed in the NLC cell by use of a polarizing optical microscope. Using a conoscopic technique, we observed novel consecutive concentric and parabolic patterns projected onto a screen. Optical energy is considered to compete with thermal energy to affect NLC's orientation and to generate singularities in the steady state. A model of the configuration of the liquid crystal's orientation is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0345446010&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0345446010&partnerID=8YFLogxK
U2 - 10.1364/OL.28.002357
DO - 10.1364/OL.28.002357
M3 - Article
C2 - 14680181
AN - SCOPUS:0345446010
VL - 28
SP - 2357
EP - 2359
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 23
ER -