Optical-Field-Induced and Enhanced First-Order Freedericksz Transitions and Intrinsic Optical Bistability In Nematic liquid Crystals

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Abstract
Certain existing NLCs can have optical-field-induced first-order Freedericksz transitions and hence can exhibit intrinsic optical bistability. With a low additional dc field, the intrinsic optical bistability can always be suppressed or enhanced, and hence can be seen in all nematics. With an additional optical field, the otherwise second-order dc-field-induced Freedericksz transition can also become first order and bistable.