The electrically and spatially controllable coherent light diffraction by single-layered polymer-dispersed liquid crystal (PDLC) films is studied. Particularly, a wedge-formed thin film of E7/NOA65 microscale PDLC is examined. The PDLC single layer of thickness varying from a few micrometers to 25 μm contains liquid crystal (LC) droplets with double-truncated spherical shapes and a linear-gradient size distribution along the film length. The single-layer arrangement and compact packing of the micrometer-sized PDLC structure render the ellectrically-commanded coherent light diffraction controlled by LC/polymer interface. Keywords: Coherent light diffractiongradient layerspolymer-dispersed liquid crystals (PDLCs)single layersthin filmsPACS: 42.25.Fx42.70.Df61.30.Gd61.30.Pq78.66.Qn Acknowledgments This study was supported by National Scientific Fund of the Bulgarian Ministry of education and Science under Grant No. Bin-5/07.
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