Solving the Maxwell equations directly in the time-domain using a newly developed accelerated algorithm, we examine the response of axially excited layers of cholesteric liquid crystals (CLCs) to rectangular wide-extent pulses (WEPs). Although the circular Bragg phenomenon certainly distorts a rectangular WEP when its bandwidth substantially lies within the Bragg regime and the carrier wave's handedness coincides with the structural handedness of a CLC layer, the pulse edges are still transmitted and appropriately coded information is thus not lost.
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Cholesteric liquid crystal;
circular Bragg phenomenon;
time domain analysis
Document Type: Original Article
CATMAS – Computational and Theoretical Materials Sciences Group, Department of Engineering Science and Mechanics, 212 Earth-Engineering Sciences Building, Pennsylvania State University, University Park, PA 16802-6812, USA
Publication date: 2001-02-01