Liquid-crystal tunable color filters based on aluminum metasurfaces
| Autor: | Zu Wen Xie, Jhen Hong Yang, Kuo-Ping Chen, Wei Lee, Vishal Vashistha |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Guided-mode resonance 02 engineering and technology Substrate (electronics) Grating 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Optics Liquid crystal Color gel Color filter array 0210 nano-technology business Layer (electronics) Plasmon |
| Zdroj: | Optics Express |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.25.030764 |
| Popis: | Designing color pixels using plasmonic nanostructures and metasurfaces has become a luring area of research in recent years. Here, we experimentally demonstrated the voltage tunability of a dynamic plasmonic color filter by using an aluminum grating integrated with the nematic liquid crystal (LC). Along with a typical substrate coated with rubbed polyimide film, the aluminum grating itself serves as a molecular alignment layer to form a twisted LC cell. This hybrid structure allows electrically controlled transmission color by applying the voltage. A significant spectral tunability of such a device has been demonstrated by applying the small voltage from 0 to 4 Vrms. |
| Databáze: | OpenAIRE |
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