Templated Sphere Phase Liquid Crystals for Tunable Random Lasing

A sphere phase liquid crystal (SPLC) composed of three-dimensional twist structures with disclinations among them exists between isotropic phase and blue phase in a very narrow temperature range, about several degrees centigrade. A low concentration polymer template is applied to improve the thermal...

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Detalles Bibliográficos
Autores principales: Chen, Ziping, Hu, Dechun, Chen, Xingwu, Zeng, Deren, Lee, Yungjui, Chen, Xiaoxian, Lu, Jiangang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5707609/
https://www.ncbi.nlm.nih.gov/pubmed/29140283
http://dx.doi.org/10.3390/nano7110392
Descripción
Sumario:A sphere phase liquid crystal (SPLC) composed of three-dimensional twist structures with disclinations among them exists between isotropic phase and blue phase in a very narrow temperature range, about several degrees centigrade. A low concentration polymer template is applied to improve the thermal stability of SPLCs and broadens the temperature range to more than 448 K. By template processing, a wavelength tunable random lasing is demonstrated with dye doped SPLC. With different polymer concentrations, the reconstructed SPLC random lasing may achieve more than 40 nm wavelength continuous shifting by electric field modulation.

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