Premium
Alignment Control of a Columnar Liquid Crystal for a Uniformly Homeotropic Domain Using Circularly Polarized Infrared Irradiation
Author(s) -
Monobe H.,
Awazu K.,
Shimizu Y.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200501762
Subject(s) - homeotropic alignment , materials science , irradiation , infrared , liquid crystal , optoelectronics , radiation , optics , physics , nuclear physics
Circularly polarized infrared irradiation of a hexagonal columnar mesophase with a free‐electron laser causes the liquid crystal to change from an “edge‐on” alignment to a uniformly homeotropic “face‐on” alignment (see Figure) due to vibrational excitation of the aromatic C–H vibration band of triphenylene.