Open AccessPolarization tunable color filters based on all-dielectric metasurfaces on a flexible substrate
Author(s) -
Xiqi Wang,
Jingye Chen,
Tingbiao Guo,
Yaocheng Shi
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.398494
Subject(s) - materials science , dielectric , polarization (electrochemistry) , optics , color gel , optoelectronics , color filter array , structural coloration , silicon , optical filter , refractive index , nanotechnology , photonic crystal , chemistry , physics , layer (electronics) , thin film transistor
Structural color filters based on all-dielectric materials are considered to be promising alternatives to metal nanostructures due to significant advantages, such as high-quality resonance effects and low losses of Ohmic effects. We demonstrate a polarization tunable color filter based on all-dielectric metasurfaces, which is based on the arrays of asymmetric monocrystalline silicon nanoblocks on the flexible substrate. By adjusting the physical dimensions of nanoblocks, the filter can exhibit a variety of bright transmission colors. Furthermore, the designed dielectric metasurfaces are sensitive to the linear polarization direction of the incident light, thus a wide range of color images can be created by changing the polarization angles. All of the color filter including the dielectric silicon nanoblocks, the overcladding, and the flexible substrate can be delaminated from the handler substrates and the optical property is reconfigurable, which will find applications in the functional color display, polarization detection and imaging, and secured optical tag.