The order parameter, Sμ , of the molecular transition dipole moment for a planar cell. and indicate the fluorescent intensities along parallel and perpendicular to the rubbing direction, respectively.
Cell configuration and LC alignment in each state. The detector, polarizer, and QWP (4/λ plate) are for measuring the degree of polarization. Microscopic images are inserted in each state. (a) Helicoidal state, (b) electrically unwound state, and (c) FC state.
PL intensity as a function of wavelength in various polarizer axes. The inset graphs in polar coordinates represent the intensity profile with the polarizer axis at 510 nm. The two photo images were taken at the brightest and darkest angles. (a) Helicoidal state, (b) unwound state, (c) and (d) FC state, (e) IFC state, and (f) incompletely unwound state.
(a) The degree of circular polarization with respect to wavelength in the helicoidal, FC, and IFC states. (b) The degree of linear polarization with respect to wavelength in the unwound, FC, and incompletely unwound states. (c) The degree of circular polarization in various states. (d) The degree of linear polarization in various states.
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