Optics: Metasurface color filters (MCFs) for 0.255um Pixels, help to miniaturize image sensor.

OSA Optics Express paper “ Absorptive metasurface color filters based on hyperbolic metamaterials for a CMOS image sensor” shows a possibility of a straight Bayer pattern with 0.255um pixels.

Metasurface color filters (MCFs) have attracted considerable attention thanks to their compactness and functionality as a candidate of an optical element in a miniaturized image sensor. However, conventional dielectric and plasmonic MCFs that have focused on color purity and efficiency cannot avoid reflection in principle, which degrades image quality by optical flare. Here, we introduce absorptive-type MCFs through truncated-cone hyperbolic metamaterial absorbers. By applying a particle swarm optimization method to design multiple parameters simultaneously, the proposed MCF is theoretically and numerically demonstrated in perceptive color on CIELAB and CIEDE2000 with suppressed-reflection. Then, a color filter array is numerically proven in 255 nm of sub-pixel pitch.” by Jongwoo Hong, Hyunwoo Son, Changhyun Kim, Sang-Eun Mun, Jangwoon Sung, and Byoungho Lee from Seoul National University

Tech Leader/PM who focuses on 3D (Imaging/Photonics/Sensing, LiDAR/ToF) and 3A (AV/Auto, AR/VR, AIoT/5G)…. linkedin.com/in/ymarc; http://4da.tech/

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store