title: Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization.
abstract: Through two-photon lithographic processes, we report experimentally and numerically a series of photoinduced tunable polymerization patterns in shapes from straight channel, serpentine curve, to periodic grating when an ultrashort femtosecond laser pulse directly writes in a liquid-crystal-monomer mixture along a line for different scanning speeds. Laser beams with polarization perpendicular to the direction of writing and the alignment of liquid crystals, produce snake-shaped patterns at an intermediate scan rate.
authors.affiliation: Institute of Photonics Technologies, Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing-Hua University, Hsinchu 300, Taiwan.
authors.forename: Chandroth P
authors.initials: CP
authors.lastname: Jisha
authors.forename: Kuei-Chu
authors.initials: KC
authors.lastname: Hsu
authors.forename: Yuanyao
authors.initials: Y
authors.lastname: Lin
authors.forename: Ja-Hon
authors.initials: JH
authors.lastname: Lin
authors.forename: Chien-Chung
authors.initials: CC
authors.lastname: Jeng
authors.forename: Ray-Kuang
authors.initials: RK
authors.lastname: Lee