Two Wave Mixing in Holographic Polymer Dispersed Liquid Crystal (H-PDLC) Formation

The intensity of transmitted laser beams is monitored during the holographic formation of polymer dispersed liquid crystal gratings. Significant attenuation of the total transmitted intensity is experienced after brief illumination. In most cases the attenuation increases for several seconds before...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 2001-04, Vol.358 (1), p.185-198
Main Authors: Bowley, Chris C., Smuk, Andrei, Crawford, Gregory P., Lawandy, Nabil M.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Holographic optical elements
holographic gratings
holographic polymer dispersed liquid crystal
Holography
Liquid crystals
Nonlinear optics
Optical materials
Optics
Phase conjugation, optical mixing
photorefractive and kerr effects
Physics
two-wave mixing
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Summary:The intensity of transmitted laser beams is monitored during the holographic formation of polymer dispersed liquid crystal gratings. Significant attenuation of the total transmitted intensity is experienced after brief illumination. In most cases the attenuation increases for several seconds before reaching a steady-state value. Analysis of the individual beam intensities reveals energy exchange between the beams in a nonlinear two-wave mixing process. This information is analyzed to help gain insight into the complex dynamics of H-PDLC formation.
ISSN:1058-725X
DOI:10.1080/10587250108028280