Abstract
The macroscopic order parameters of the homogeneously aligned liquid crystal (MBBA) with dissolved photosynthetic pigments (chlorophyll a, chlorophyll b and β-carotene) were determined using polarized absorption, emission and Raman scattering methods. Assuming the cylindrical symmetry of the pigment orientation around the liquid crystal director, the experimental and calculated values of the order parameter were correlated by using the distribution function of the nematics. It was shown that the order parameter of the matrix is dramatically destroyed by a high chlorophyll concentration (3 × 10 −3 M) whereas over a wide range of concentration the carotene did not change the matrix order.
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