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23 September 2016 Resonant mode at the band edge
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We have found the solution of the boundary value problem for reflectance and transmittance of normal circularly polarized light impinges on a cholesteric elastomer film with a twist defect. We have found a tunable resonant mode in the reflectance band for right and left circularly polarized light. When the values of chiral twist defect are increased in the cholesteric elastomer film, the resonant modes changes to shorter wavelength until the edge band is reached.
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P. Castro-Garay, D. Vargas Hernández, J. Manzanares-Martinez, A. Corella-Madueño, A. Rosas-Burgos, Dra J. Tanori, A. Pellat, and S. Estrada "Resonant mode at the band edge", Proc. SPIE 9940, Liquid Crystals XX, 99401J (23 September 2016);

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