It is shown that the relationship between capacitance and refractive index is linear for liquid-crystal optical devices, such as liquid-crystal Fabry–Perot interferometer filters and liquid-crystal microprism arrays. A linearizing circuit that compensates for the nonlinear properties of liquid-crystal optical devices is made, in which capacitance instead of applied voltage is monitored. It can also directly display the value of the transmission peak wavelength or the deflection angle.
© 1996 Optical Society of America
Original Manuscript: May 14, 1996
Published: September 15, 1996
Katsuhiko Hirabayashi, "Relationship between optical and electrical properties of liquid-crystal optical devices," Opt. Lett. 21, 1484-1486 (1996)