Remarkable SHG enhancement by helical distributed feedback cavity spontaneously formed in ferroelectric liquid crystals

Hajime Hoshi; Doo-Han Chung; Ken Ishikawa; Hideo Takezoe

doi:10.1117/12.379978

17 March 2000 Remarkable SHG enhancement by helical distributed feedback cavity spontaneously formed in ferroelectric liquid crystals

Hajime Hoshi, Doo-Han Chung, Ken Ishikawa, Hideo Takezoe

Author Affiliations +

Proceedings Volume 3955, Liquid Crystal Materials, Devices, and Flat Panel Displays; (2000) https://doi.org/10.1117/12.379978
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

Remarkable enhancement of second-harmonic (SH) generation in a ferroelectric liquid crystal was theoretically studied. The enhancement occurs when SH wavelength coincides with the wavelength at odd-number-th dips of subsidiary oscillation in one edge of the selective reflection band. To interpret this behavior, the electric field of inhomogeneous and homogeneous SH light in a cell was simulated for a right-handed (R) ferroelectric liquid crystal. It was found that R-circularly polarized light forms a standing wave inside the cell at the odd-number-th dips, when two counter-propagating beams with the same polarization (e.g., R-R) are incident. On the other hand, inhomogeneous and homogeneous waves are out of phase to each other at the bounding surface at the even-number-th dips, so that no enhancement occurs. As for an incidence of R- and L-polarized light, enhanced SH light is generated only toward the R-incidence side. The SH light is L-polarized in this case, while R-polarized SHG is observed from both sides for the incidence of counterwaves with the same polarization.

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Hajime Hoshi, Doo-Han Chung, Ken Ishikawa, and Hideo Takezoe "Remarkable SHG enhancement by helical distributed feedback cavity spontaneously formed in ferroelectric liquid crystals", Proc. SPIE 3955, Liquid Crystal Materials, Devices, and Flat Panel Displays, (17 March 2000); https://doi.org/10.1117/12.379978

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