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In article number 2002166, Sang Seok Lee, Shin‐Hyun Kim, and Sihun Park design onion‐like photonic multishells with distinct photonic bandgaps. The multilayered structure is spontaneously created in emulsion drops by consecutive steps of phase separation between cholesteric liquid crystals (CLCs) and hydrophilic liquid, triggered by material exchange with the continuous phase. During the phase separation,...
Cholesteric liquid crystals (CLCs), also known as chiral nematic LCs, show a photonic stopband, which is promising for various optical applications. In particular, CLCs confined in microcompartments are useful for sensing, lasing, and optical barcoding at the microscale. The integration of distinct CLCs into single microstructures can provide advanced functionality. In this work, CLC multishells with...
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