Low-Power Laser Induced Instabilities in Smectic A Liquid Crystals

Low-Power Laser Induced Instabilities in Smectic A Liquid Crystals

A low power He-Ne laser beam is shown to induce layer instabilities in a smectic A liquid crystal cell possessing initial homeotropic orientation. The effect occurs when the smectic A phase is doped with a photosensitive azo-compound. The most plausible mechanism for the instability is photo-transfo...

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Veröffentlicht in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 1995-03, Vol.261 (1), p.259-270
Hauptverfasser: Folks, W. R., Reznikov, Yu. A., Chen, L., Khizhnyak, A. I., Lavrentovich, O. D.
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container_issue 1
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container_title Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals
container_volume 261
creator Folks, W. R.
Reznikov, Yu. A.
Chen, L.
Khizhnyak, A. I.
Lavrentovich, O. D.
description A low power He-Ne laser beam is shown to induce layer instabilities in a smectic A liquid crystal cell possessing initial homeotropic orientation. The effect occurs when the smectic A phase is doped with a photosensitive azo-compound. The most plausible mechanism for the instability is photo-transformation of the guest molecules (e.g. trans-cis isomerization), and a subsequent decrease in the smectic layer spacing.
doi_str_mv 10.1080/10587259508033473
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title Low-Power Laser Induced Instabilities in Smectic A Liquid Crystals
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