Kerr effect and Kerr constant enhancement in vertically aligned deformed helix ferroelectric liquid crystals
Shi Liangyu†, , Kumar Srivastava Abhishek, Chigrinov Vladimir G, Kwok Hoi-Sing
       

The open circles represent the ellipticity of the 534-nm transmitted light measured at φ = 90°, while the solid circles represent the induced birefringence of 10-μm-thick cell.[20]