Full-color nanorouter for high-resolution imaging

Chen, M., Wen, L., Pan, D., Cumming, D. R.S. , Yang, X. and Chen, Q. (2021) Full-color nanorouter for high-resolution imaging. Nanoscale, 13(30), pp. 13024-13029. (doi: 10.1039/D1NR02166D)

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Pixel scaling effects have been a major issue for the development of high-resolution color image sensors due to the reduced photoelectric signal and the color crosstalk. Various structural color techniques have been proposed and demonstrated the large freedom in color manipulation by the structure design. However, the optical efficiency and the color distortion limit the practical applications due to its intrinsic filtering mechanism. Instead, on-chip full-color routing is quite charming for improving the signal-to-noise ratio. In this paper, a single-layer quick response code like nanorouter is proposed for the full-color light routing in a pixel level of image sensors. It shows much higher routing efficiency than various planar lens schemes for signal wavelength focusing. Moreover, over 60% signal enhancement with robust polarization insensitivity is obtained in all three primary color bands with a same nanorouter by a multi-objective optimization method. Negligible color distortion is observed from the reconstructed color image. Such a simple nanorouter scheme is promising for the development of image sensor, photovoltaics and display.

Item Type:Articles
Additional Information:The authors are grateful for financial supports from National Key Research and Development Program of China (2019YFB2203402), National Natural Science Foundation of China (11774383, 92050108, 11774099, 11874029 and 11804120), Guangdong Science and Technology Program International Cooperation Program (2018A050506039, 2021A0505030038), Guangdong Basic and Applied Basic Research Foundation (2020B1515020037), Pearl River Talent Plan Program of Guangdong (No. 2019QN01X120), The enterprise science and technology commissioner project of Guangdong province (GDKTP2020051100). DRSC is supported by UK EPSRC Grant EP/T00097X/1.
Glasgow Author(s) Enlighten ID:Cumming, Professor David
Authors: Chen, M., Wen, L., Pan, D., Cumming, D. R.S., Yang, X., and Chen, Q.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Nanoscale
Publisher:Royal Society of Chemistry
ISSN (Online):2040-3372
Published Online:07 July 2021
Copyright Holders:Copyright © 2021 The Royal Society of Chemistry
First Published:First published in Nanoscale 13(30): 13024-13029
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
305567QuantIC - The UK Quantum Technoogy Hub in Quantum Enhanced ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/T00097X/1P&S - Physics & Astronomy