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Proceedings Paper

Second-harmonic generation studies in the SmCP phase of bent-shaped mesogens
Author(s): Vladimíra Novotná; Jan Kroupa; Miroslav Kašpar; Milada Glogarová; Vera Hamplová
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Paper Abstract

We have studied several compounds of non-chiral mesogens composed of symmetrically and non-symmetrically bent-shaped molecular core with thermally stable ester linkages and laterally substituted by methoxy group. Recently, mesomorphic properties have been described and the SmCP (B2) phase has been identified in a wide temperature range below the isotropic phase. Additionally, symmetrical bent-shaped mesogens exhibit the B7 phase on cooling from the B2 phase. Herein we concentrated on nonlinear optical properties in the observed mesophases. Second harmonic generation (SHG) supports the idea that the ground state of the B2 phase in studied bent-shaped mesogens has antiferroelectric character and demonstrates the switching from antiferroelectric to ferroelectric state under applied electric field.

Paper Details

Date Published: 9 May 2007
PDF: 7 pages
Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 65871H (9 May 2007); doi: 10.1117/12.723130
Show Author Affiliations
Vladimíra Novotná, Institute of Physics (Czech Republic)
Jan Kroupa, Institute of Physics (Czech Republic)
Miroslav Kašpar, Institute of Physics (Czech Republic)
Milada Glogarová, Institute of Physics (Czech Republic)
Vera Hamplová, Institute of Physics (Czech Republic)

Published in SPIE Proceedings Vol. 6587:
Liquid Crystals and Applications in Optics
Milada Glogarova; Peter Palffy-Muhoray; Martin Copic, Editor(s)

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