Abstract

The linear electrogyration effect is observed in the crystallike ${\mathrm{B}}_4$ 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 $r_{\mathrm{eff}}=21.6 \mathrm{pm}/\mathrm{V}$ at 488 nm.

© 2003 Optical Society of America

Induced chirality in a polyisocyanate polymeric film and the change in polarization rotation under an external electric field

S. H. Han, J. W. Wu, J.-W. Kang, Y.-D. Shin, J.-S. Lee, and J.-J. Kim
J. Opt. Soc. Am. B 18(3) 298-301 (2001)

Electric-field controllable optical activity in the nano-segregated system composed of rod- and bent-core liquid crystals [Invited]

Fumito Araoka, Go Sugiyama, Ken Ishikawa, and Hideo Takezoe
Opt. Mater. Express 1(1) 27-35 (2011)

Counterpropagating second-harmonic generation: a new technique for the investigation of molecular chirality at surfaces

Matthew A. Kriech and John C. Conboy
J. Opt. Soc. Am. B 21(5) 1013-1022 (2004)

Sum-frequency generation from an isotropic chiral medium

Pao-Keng Yang and Jung Y. Huang
J. Opt. Soc. Am. B 15(6) 1698-1706 (1998)

Optical activity of anisotropic achiral surfaces

Thierry Verbiest, Martti Kauranen, and André Persoons
J. Opt. Soc. Am. B 15(1) 451-457 (1998)