Temperature dependence of the photonic bandgap and the orientational order parameter for a cholesteric photonic crystal

The reflection spectra of a cholesteric photonic crystal have been measured. The experimental spectra are described by a theoretical expression that follows from the analytical solution of the Maxwell equations. The photonic bandgap width Δν has been determined. The photonic bandgap width changes ab...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2014-06, Vol.118 (6), p.891-895
Main Authors: Dolganov, P. V., Gordeev, S. O., Dolganov, V. K.
Format: Article
Language:English
Subjects:
Astrophysics
Classical and Quantum Gravitation
Elementary Particles
Fields
Gravitation
Nuclei
Particle and Nuclear Physics
Particles
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
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Summary:The reflection spectra of a cholesteric photonic crystal have been measured. The experimental spectra are described by a theoretical expression that follows from the analytical solution of the Maxwell equations. The photonic bandgap width Δν has been determined. The photonic bandgap width changes abruptly as the position of the diffraction band changes. The temperature dependence of the relative bandgap width Δν/ν 0 and the order parameter for a photonic crystal are described by Landau’s theory of phase transitions.
ISSN:1063-7761
1090-6509
DOI:10.1134/S106377611406003X