Abstract
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.
Original language | English |
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Pages (from-to) | 30764-30770 |
Number of pages | 7 |
Journal | Optics Express |
Volume | 25 |
Issue number | 24 |
DOIs | |
State | Published - 27 Nov 2017 |