  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).
