Transient and persistent holographic gratings have been observed in dye- and fullerene C60-doped nematic liquid-crystal films. The nature and time evolution of the underlying mechanisms, such as space-charge field production, flows, and dielectric- and conductivity-induced torques, and the resultant director axis reorientation and refractive-index gratings are examined.
© 1995 Optical Society of America
Original Manuscript: July 11, 1995
Published: October 15, 1995
I. C. Khoo, "Holographic grating formation in dye- and fullerene C60-doped nematic liquid-crystal film," Opt. Lett. 20, 2137-2139 (1995)