Thursday, August 1, 2013

1307.8193 (Volodymyr Borshch et al.)

Nanosecond electro-optic switching of a liquid crystal    [PDF]

Volodymyr Borshch, Sergij V. Shiyanovskii, Oleg D. Lavrentovich
Electrically induced reorientation of nematic liquid crystal (NLC) molecules caused by dielectric anisotropy of the material is a fundamental phenomenon widely used in modern technologies. Its Achilles heel is a slow (millisecond) relaxation from the field-on to the field-off state. We present an electro-optic effect in an NLC with a response time of about 30 ns to both the field-on and field-off switching. This effect is caused by the electric field induced modification of the order parameters (EMOP) and does not require reorientation of the optic axis (director).
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