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Journal of Applied Physics / Volume 110 / Issue 11 / ARTICLES / Lasers, Optics, and Optoelectronics

J. Appl. Phys. 110, 113104 (2011); http://dx.doi.org/10.1063/1.3665123 (5 pages)

Influence of temperature on dynamics of birefringence switching in photochromic nematic phase

Jaroslaw Mysliwiec1, Maciej Czajkowski1, Stanislaw Bartkiewicz1, Krystian Zygadlo2, Zbigniew Galewski2, and Bouchta Sahraoui3

1Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, Wroclaw 50-370, Poland
2University of Wroclaw, Joliot-Curie 14, Wroclaw 50-383, Poland
3University of Angers, Moltech-Anjou UMR CNRS 6200, University of Angers, Angers 49-045, France

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(Received 9 August 2011; accepted 26 October 2011; published online 5 December 2011)

We present results of dynamic and fast switching of birefringence in a photochromic liquid-crystalline system as a function of the sample temperature. The system consists of photochromic molecules of 4-heptyl-4′-methoxyazobenzene showing a liquid-crystalline nematic state close to room temperature. An experiment of dynamic birefringence switching was done in optical Kerr-effect set-up, where for the sample excitation, a picosecond-pulsed laser was used. Measurements were done for different temperatures of the sample in the liquid-crystalline nematic phase. We have proposed a mathematical model of dynamic, fast, and fully reversible birefringence changes. Theoretical estimations and experimental results have shown very good agreement.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. METHODS AND MATERIALS
  3. EXPERIMENTAL RESULTS AND DISCUSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

birefringence, high-speed optical techniques, nematic liquid crystals, optical Kerr effect, organic compounds, photochromism, switching

PACS

  • 61.30.-v

    Liquid crystals

  • 78.15.+e

    Optical properties of fluid materials, supercritical fluids and liquid crystals

  • 78.20.Fm

    Birefringence

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3665123

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    J. Mysliwiec, L. Sznitko, A. Sobolewska, S. Bartkiewicz, and A. Miniewicz, Appl. Phys. Lett. 96, 141106 (2010)APPLAB000096000014141106000001.

    Z. Sekkat, D. Morichere, M. Dumont, R. Loucif-Saibi, and J. A. Delaire, J. Appl. Phys. 71, 1543 (1992)JAPIAU000071000003001543000001.

    R. Barille, P. Tajalli, S. Zielinska, E. Ortyl, S. Kucharski, and J. M. Nunzi, Appl. Phys. Lett. 5, 053102 (2009)APPLAB000095000005053102000001.

    M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).

    H. Ono and N. Kawatsuki, Appl. Phys. Lett. 71, 1162 (1997)APPLAB000071000009001162000001.

    J. Mysliwiec, M. Czajkowski, S. Bartkiewicz, K. Zygadlo, Z. Galewski, and B. Sahraoui, Appl. Phys. Lett. 8, 081105 (2011)APPLAB000098000008081105000001.


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