Some Peculiarities of Transient Processes in Planar Periodic-Planar Polarization Diffraction Gratings

The transient processes in planar periodic-planar polarization diffraction gratings under influence short bipolar electric pulses are investigated. It is shown that the application of bipolar pulses with certain amplitude and frequency leads to significant increase of diffraction efficiency in non-z...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2012-02, Vol.553 (1), p.5-12
Main Author: Margaryan, H. L.
Format: Article
Language:English
Subjects:
Amplitudes
Crystals
Diffraction
Diffraction efficiency
Diffraction gratings
Efficiency
Electric pulses
Frequencies
liquid crystal
Liquid crystals
Polarization
Polarization diffraction gratings
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Summary:The transient processes in planar periodic-planar polarization diffraction gratings under influence short bipolar electric pulses are investigated. It is shown that the application of bipolar pulses with certain amplitude and frequency leads to significant increase of diffraction efficiency in non-zero diffraction orders as compared to steady-state diffraction. The dependence of diffraction efficiency of each diffraction order on both the amplitude and frequency of applied pulses is studied. It is shown that the maximum diffraction efficiency of necessary order can be controlled by choosing frequency and amplitude of external pulses. This phenomenon can be used for creation of adaptive polarization diffraction gratings functioning in none-steady state mode.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2011.609339