Interference effect of coherent transmittance quenching: theoretical studyof optical modulation by surface ferroelectric liquid crystal droplets

Within the framework of the single scattering and the anomalous diffraction approach, the conditions for coherent transmittance quenching for surface ferroelectric liquid crystal (SFLC) droplets have been found. The influence of the droplet polydispersity and the disorientation of their optical axes for the SFLC film for the conditions under which the film coherent transmi ttance becomes zero is analysed. The contrast ratio and the modulation dept h of the SFLC film under the conditions of coherent transmission quenching have been studied. The possibility of a dramatic increase in the contrast r atio at fields of view of a few degrees is shown. Analysis of the contrast ratio and modulation depth of the SFLC film under the conditions of coheren t component quenching and at a departure from these conditions has been per formed.