In-plane pitch control of cholesteric liquid crystals by formation of artificial domains via patterned photopolymerization.
A controlled helix pitch modulation in the in-plane direction of a planarly aligned cholesteric liquid crystal cell is demonstrated by using photopolymerizable cholesteric liquid crystals. By fabricating artificial domains with a closed volume via two-photon excitation laser-lithography, the degree of pitch modulation could be controlled by adjusting the surface area to volume ratio of the domain. A pitch modulation of over 60 nm was realized by designing the shape of the artificial domain.
Yoshida
Hiroyuki
H
Department of Electrical, Electronic and Informational Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan.
Miura
Yusuke
Y
Tokuoka
Kazuki
K
Suzuki
Satoshi
S
Fujii
Akihiko
A
Ozaki
Masanori
M
D003460:Crystallization / Q000379:methods*; D050866:Liquid Crystals / Q000737:chemistry*; D044367:Phase Transition; D010777:Photochemistry / Q000379:methods*; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry / Q000379:methods*
D011108:Polymers