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The cover shows a surface acoustic‐wave driven light shutter formed from a polymer‐dispersed liquid crystal (PDLC) film. In regions without surface acoustic waves (SAWs) the LC molecules in the droplets show a radial alignment, while within the SAW working region, the LC molecules show an alignment perpendicular to the substrate. With further optimization, this PDLC‐based light shutter, reported on p. 1656...
A surface acoustic wave (SAW)‐driven light shutter is demonstrated using polymer‐dispersed liquid crystals (PDLCs). Our experiments show that a PDLC film switches from a non‐transparent state to a transparent state when subjected to a SAW. The working mechanism is analyzed theoretically and the acousto‐optic properties of the PDLC film are characterized. This switching behavior results from the...
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