Second harmonic generation in ferroelectric liquid crystal mixtures

Authors

  • Dr. Josu Ortega,

    1. Departamento de Física de la Materia Condensada Facultad de Ciencias, Universidad del País Vasco Apdo. 644, E-48080 Bilbao (Spain)
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  • Dr. César Luis Folcia,

    1. Departamento de Física de la Materia Condensada Facultad de Ciencias, Universidad del País Vasco Apdo. 644, E-48080 Bilbao (Spain)
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  • Dr. Jesús Etxebarría,

    Corresponding author
    1. Departamento de Física de la Materia Condensada Facultad de Ciencias, Universidad del País Vasco Apdo. 644, E-48080 Bilbao (Spain)
    • Departamento de Fisica de la Materia Condensada Facultad de Ciencias, Universidad del País Vasco Apdo. 644, E-48080 Bilbao (Spain)
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  • M. Carmen Artal,

    1. Quimica Orgánica, Facultad de Ciencias-I. C. M. A. Universidad de Zaragoza-C. S. I. C. E-50009 Zaragoza (Spain)
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  • Dr. M. Blanca Ros,

    Corresponding author
    1. Quimica Orgánica, Facultad de Ciencias-I. C. M. A. Universidad de Zaragoza-C. S. I. C. E-50009 Zaragoza (Spain)
    • Química Orgánica, Facultad de Ciencias-I. C. M. A. Universidad de Zaragoza-C. S. I. C. E-50009 Zaragoza (Spain)
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  • Prof. José Luis Serrano

    1. Quimica Orgánica, Facultad de Ciencias-I. C. M. A. Universidad de Zaragoza-C. S. I. C. E-50009 Zaragoza (Spain)
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  • This work was supported by the CICYT of Spain (Project MAT94-0717-C02), the University of Pais Vasco (Project UPV 063.310-EB228/95) and the EC Human Capital and Mobility Programme (CHRX-C193-1061). M. C. Artal would like to thank the M. E. C. of Spain for a grant.

Abstract

The concentration dependence of the second harmonic generation efficiency has been analyzed in binary mixtures containing a ferroelectric liquid crystal material (W313) with high spontaneous polarization and an achiral host. It has been found that the effective nonlinear coefficient is not, in general, proportional to the mixture mole fraction, although it is linearly correlated to the spontaneous polarization. Far from the transition to the chiral smectic C phase, both quantities display te same temperature dependence.

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