Bias‐Polarity Dependent Bidirectional Modulation of Photonic Bandgap in a Nanoengineered 3D Blue Phase Polymer Scaffold for Tunable Laser Application
Source abstract
Abstract
Abstract Transferring self‐assembly liquid‐crystalline blue phase structure to polymers is emerging as a promising bottom‐up strategy in the nanofabrication of 3D photonic materials and devices. Here a polymer scaffold in blue phase I structure is fabricated with cubic symmetry and its potential application is demonstrated as an electrically tunable mirrorless laser by refilling the scaffold with laser dye‐doped nematic liquid crystal mixture. The templated blue phase exhibits immense thermal stability and sensitive responsive behavior to external electric fields with blueshift of the reflection band under negative bias voltage whereas redshift under positive bias. Moreover, bias‐polarity dependent bidirectional tuning of the laser emission with wavelength range of about 48 nm is achieved in the study. The nanoengineered 3D polymer scaffold with splendid electrical tunability might provide impetus for the preparation of functional hybrid materials and novel device architectures, which have diversified potential applications in reflective full‐color displays, tunable optical devices, and photonic integrated circuits.
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Research context
OpenAlex topics: Liquid Crystal Research Advancements · Photonic Crystals and Applications · Nonlinear Optical Materials Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering School of Mechanical Electronic and Information Engineering China University of Mining and Technology‐Beijing Beijing 100083 P. R. China
Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 P. R. China
Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 P. R. China
Artie McFerrin Department of Chemical Engineering Texas A&M University College Station TX 77843 USA
Department of Chemistry and Chemical Engineering School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing 100083 P. R. China
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Peking University Beijing 100871 P. R. China
Funding
National Natural Science Foundation of China
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