Ha Na Young, Jeong Soon Moon, Nishimura Suzushi, Takezoe Hideo
Department of Physics and Division of Energy Systems Research, Ajou University 443-749, Suwon, Korea.
Opt Express. 2010 Dec 6;18(25):26339-44. doi: 10.1364/OE.18.026339.
We have demonstrated multicolored reflections showing various whitish colors from a bichiral liquid crystal (LC) film. The bichiral LC film was fabricated by using left-handed and right-handed polymeric cholesteric liquid crystal (CLC) films with two different helical pitches and an isotropic polymer film in between. Color temperatures of the multiple reflections are controlled from ~4000 K to ~10000 K by changing linear polarization directions of normally incident and reflected lights. This characteristic can extend practical applications of CLCs to illuminant devices.
我们已经展示了从双螺旋液晶（LC）薄膜呈现出各种白色的多色反射。该双螺旋LC薄膜是通过使用具有两种不同螺旋间距的左旋和右旋聚合物胆甾相液晶（CLC）薄膜以及夹在中间的各向同性聚合物薄膜制成的。通过改变正常入射光和反射光的线性偏振方向，多次反射的色温可在约4000 K至约10000 K之间控制。这一特性可将CLC的实际应用扩展到照明设备。
