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Behavior of the cholesteric liquid-crystal fabry-perot cavity in the bragg reflection band
1Departments of Physics and Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Abstract:
In this Letter, we investigate the behavior of the cholesteric liquid-crystal Fabry-Perot cavity in the spectral range of the Bragg reflection band. We show that in this region the 2x2-Jones-matrix calculation gives a false predication. However, by the use of the 4x4-matrix method, interesting features are revealed in the resonance spectra. The resonance spectra split when lambda approximately &nmacr;P. Our experiments confirm this phenomenon. The experimental results show that the splitting occurs in a steplike fashion. This can be explained by the quantization of the pitch that occurs due to the fixed boundary conditions.