Light propagation in a photonic crystal fiber infiltrated with mesogenic azobenzene dyes

Abstract

In this paper, light propagation has been investigated in an isotropic photonic crystal fiber as well in a silica-glass microcapillary infiltrated with a mesogenic azobenzene dye. It appeared that the light spectrum guided inside the photonic crystal fiber infiltrated with the investigated azobenzene dye depends on the illuminating wavelength of the absorption band and on linear polarization. Also, the alignment has been investigated of the mesogenic azobenzene dye molecules inside silica glass microcapillaries and photonic crystal fibers. The results obtained may lead to a new design of optically tunable photonic devices.