Related Experiment Video
Updated: May 18, 2026
06:24
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
High-contrast photoswitching of nonlinear optical response in crosslinked ferroelectric liquid-crystalline polymers
Arri Priimagi1, Keiji Ogawa, Matti Virkki
1Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Advanced Materials (Deerfield Beach, Fla.)
|October 3, 2012
Abstract:
A conceptually novel materials design, based on crosslinked ferroelectric liquid-crystalline polymers, is demonstrated for efficient switching of a second-order nonlinear optical (NLO) response in the solid state. By controlling the molecular alignment of the NLO moieties through two-photon isomerization of azobenzene molecules, reversible isothermal photocontrol of second-harmonic generation is achieved with contrast of up to 20.
