Electrogyration effect in a chiral bent-core molecular system

Fumito Araoka, Yoichi Takanishi, Hideo Takezoe, Ahyoung Kim, Byoungchoo Park, J. W. Wu

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The linear electrogyration effect is observed in the crystallike B4 phase of a mixture of chiral and achiral bent-core mesogens. A large birefringent monodomain with a single sense of chirality was selected for experiment. Upon application of a modulating electric field to the sample cell, a strong modulation of refractive index was observed. Analysis showed that both the linear electro-optic and the linear electrogyration effect are responsible for the index modulation with the latter being dominant. The effective electro-optic coefficient was measured to be reff = 21.6 pm/V at 488 nm.

Original languageEnglish
Pages (from-to)314-320
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Issue number2
StatePublished - Feb 2003


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