Tunable structural colors in all-dielectric photonic crystals using energetic ion beams
OPTICS EXPRESS(2022)
Abstract
The modulation of structural color through various methods has attracted considerable attention. Herein, a new modulation method for the structural colors in all-dielectric photonic crystals (PCs) using energetic ion beams is proposed. One type of periodic PC and two different defective PCs were experimentally investigated. Under carbon-ion irradiation, the color variation primarily originated from the blue shift of the optical spectra. The varying degrees of both the reflection and transmission structural colors mainly depended on the carbon-ion fluences. Such nanostructures are promising for tunable color filters and double-sided chromatic displays based on PCs. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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Key words
energetic ion beams,tunable structural colors,all-dielectric
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