Subwavelength Bayer RGB color routers with perfect optical efficiency

Abstract: We introduce subwavelength color routers with perfect optical efficiency in a red-green-green-blue (RGGB) Bayer layout for solid state image sensors. This is the first demonstration of a subwavelength device concept that shows the full potential of color routing, i.e., perfect routing without loss of photons, with a broadband, polarization-independent, and angular robust response. As an example, we show a color router for 320 nm wide image sensor pixels, which are two times smaller than the smallest state-of-the-art pixels, that features perfect optical efficiency, i.e., no crosstalk between color channels, no reflections, and no leakage into non-photodetector regions, even though the pixel photodetectors are 2–3 times smaller than the wavelength of the incident light. Our color router outperforms all other color separation approaches and can replace the entire optical stack in solid state image sensors.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Subwavelength Bayer RGB color routers with perfect optical efficiency ; volume:11 ; number:10 ; year:2022 ; pages:2381-2387 ; extent:07 ; Nanophotonics ; 11, Heft 10 (2022), 2381-2387 (gesamt 07)

Contributors, Places and Time

• Creator: Catrysse, Peter B. ; Zhao, Nathan ; Jin, Weiliang ; Fan, Shanhui

Further information

• DOI: 10.1515/nanoph-2022-0069
• URN: urn:nbn:de:101:1-2022120713560906291715
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:25 AM CEST