Dual-cavity based penta-layered reflective RGB structural colors filters

HoJae Kwak; Incheol Jung; Hyeonwoo Kim; Kwangjun Kim; Minwook Kim; Hui Joon Park; Jong G. Ok; Kyu-Tae Lee

doi:10.1117/12.2594069

1 August 2021 Dual-cavity based penta-layered reflective RGB structural colors filters

HoJae Kwak, Incheol Jung, Hyeonwoo Kim, Kwangjun Kim, Minwook Kim, Hui Joon Park, Jong G. Ok, Kyu-Tae Lee

Proceedings Volume 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII; 118020S (2021) https://doi.org/10.1117/12.2594069
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Conference Poster

Abstract

We present dual-cavity based reflective structural color filters that can produce RGB additive colors featuring high purity and high efficiency. We decided to design a filter with a new wavelength by combining two classical MDM structure Fabry-Perot cavities with different resonant wavelength. A cavity medium with high refractive index leads to angle-invariant performance up to 50˚. Moreover, only deposition is involved so that the device can be easily scaled over a large area. The described approach may provide new avenues for various applications, such as reflective displays and surface coatings for decoration and solar cells.

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Citation Download Citation

HoJae Kwak, Incheol Jung, Hyeonwoo Kim, Kwangjun Kim, Minwook Kim, Hui Joon Park, Jong G. Ok, and Kyu-Tae Lee "Dual-cavity based penta-layered reflective RGB structural colors filters", Proc. SPIE 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII, 118020S (1 August 2021); https://doi.org/10.1117/12.2594069

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