Abstract
A phenomenological model of photo-induced traveling waves in liquid-crystalline Langmuir monolayers is presented. A linear stability analysis and numerical simulations of this model reveal that there are two oscillatory unstable modes with lower and higher wavenumbers which cause the traveling waves. The unstable mode with the lower wavenumber arises due to an interplay between the spontaneous splay deformation of liquid crystal order and the anisotropic photoexcitation of molecules. The other unstable mode with the higher wavenumber is concerned with the phase separation of the concentration field induced by the spontaneous splay deformation. The numerical simulations also show the coexistence between these two modes for certain parameter values.
| Original language | English |
|---|---|
| Journal | Molecular Crystals and Liquid Crystals |
| Volume | 435 |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
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Keywords
- Langmuir monolayers
- Nonequilibrium structures
- Photo-isomerization
- Traveling waves
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
A phenomenological model of photo-induced traveling waves in liquid-crystalline langmuir monolayers. / Okuzono, Tohru; Tabe, Yuka; Yokoyama, Hiroshi.
In: Molecular Crystals and Liquid Crystals, Vol. 435, 2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A phenomenological model of photo-induced traveling waves in liquid-crystalline langmuir monolayers
AU - Okuzono, Tohru
AU - Tabe, Yuka
AU - Yokoyama, Hiroshi
PY - 2005
Y1 - 2005
N2 - A phenomenological model of photo-induced traveling waves in liquid-crystalline Langmuir monolayers is presented. A linear stability analysis and numerical simulations of this model reveal that there are two oscillatory unstable modes with lower and higher wavenumbers which cause the traveling waves. The unstable mode with the lower wavenumber arises due to an interplay between the spontaneous splay deformation of liquid crystal order and the anisotropic photoexcitation of molecules. The other unstable mode with the higher wavenumber is concerned with the phase separation of the concentration field induced by the spontaneous splay deformation. The numerical simulations also show the coexistence between these two modes for certain parameter values.
AB - A phenomenological model of photo-induced traveling waves in liquid-crystalline Langmuir monolayers is presented. A linear stability analysis and numerical simulations of this model reveal that there are two oscillatory unstable modes with lower and higher wavenumbers which cause the traveling waves. The unstable mode with the lower wavenumber arises due to an interplay between the spontaneous splay deformation of liquid crystal order and the anisotropic photoexcitation of molecules. The other unstable mode with the higher wavenumber is concerned with the phase separation of the concentration field induced by the spontaneous splay deformation. The numerical simulations also show the coexistence between these two modes for certain parameter values.
KW - Langmuir monolayers
KW - Nonequilibrium structures
KW - Photo-isomerization
KW - Traveling waves
UR - http://www.scopus.com/inward/record.url?scp=33644811335&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33644811335&partnerID=8YFLogxK
U2 - 10.1080/15421400590955316
DO - 10.1080/15421400590955316
M3 - Article
VL - 435
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
ER -