Circular differentiation scattering of light in films of chiral polyfluorene

The investigation of the circular differential transmission in thick films of poly{9.9-bis[(3S)-3,7-dimethyloctyl}-2,7-fluorene} is presented. A specifically designed chiroptical setup is used to show that the circular selective reflection of light, in which the circular polarization of the light is retained after reflection, makes a negligible contribution to the differential transmission.