The homeotropically aligned nematic liquid-crystal layer with a free circular edge is studied. Domain patterns induced by high-frequency ultrasound pulses are observed for the first time to our knowledge. The pattern changes for different incident angles of the ultrasound and can be enhanced by a quasi-static electric field.
© 1989 Optical Society of America
Original Manuscript: March 16, 1989
Manuscript Accepted: June 25, 1989
Published: October 1, 1989
Shu-Hsia Chen, Kai-Feng Huang, and Wei Lee, "Observation of domain patterns induced by ultrasound pulses in a nematic liquid-crystal film," Opt. Lett. 14, 1042-1044 (1989)