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Microshells: Photoresponsive Monodisperse Cholesteric Liquid Crystalline Microshells for Tunable Omnidirectional Lasing Enabled by a Visible Light‐Driven Chiral Molecular Switch (Advanced Optical Materials 9/2014)
Author(s) -
Chen Lujian,
Li Yannian,
Fan Jing,
Bisoyi Hari Krishna,
Weitz David A.,
Li Quan
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201470060
Subject(s) - lasing threshold , materials science , cholesteric liquid crystal , liquid crystal , optoelectronics , photoisomerization , dispersity , microfluidics , laser , optics , photonic crystal , nanotechnology , wavelength , biochemistry , chemistry , physics , isomerization , polymer chemistry , catalysis
A self‐organized, phototunable 3D photonic superstructure is fabricated from a photoresponsive 1D liquid crystal using microfluidics. On page 845, Q. Li and co‐workers show how the resulting monodisperse microshells are water‐oil‐water double emulsions, in which the oil phase consists of the photoresponsive liquid crystals. The cholesteric microshells exhibit band‐edge lasing in all directions, and the wavelength of the resultant band‐edge laser is tuned via the pumping laser, causing photoisomerization of the chiral molecular switch.