TY - JOUR
T1 - Creating Wavelength-Selective Polarization Digital Numbers
AU - Intaravanne, Yuttana
AU - Ansari, Muhammad Afnan
AU - Ahmed, Hammad
AU - Chen, Xianzhong
N1 - Funding Information:
This project was funded by the Engineering and Physical Sciences Research Council (EP/P029892/1), the Leverhulme Trust (RPG‐2021‐145), and the Royal Society International Exchanges (IES∖R3∖193046). Y.I. acknowledges the support from the Ministry of Higher Education, Science, Research and Innovation (Thailand), the Royal Thai Embassy in London (UK), and Thailand's Program Management Unit for Competitiveness (PMU‐C) through research grant contract No. C10F650168.
Publisher Copyright:
© 2023 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH.
PY - 2023/4/28
Y1 - 2023/4/28
N2 - Polarization and wavelength are two important properties of light for understanding optics. Engineered polarization and wavelength profiles have received considerable interest due to their unusual optical features and more degrees of freedom. However, to simultaneously control polarization and wavelengths, conventional methods suffer from big pixel size, complicated fabrication process, and limited levels in phase control. The unprecedented capability of metasurfaces in the light control has shown much promise to tackle these challenges. Polarization digital numbers with ten different wavelengths are proposed and experimentally realized. A geometric metasurface is used to simultaneously realize wavelength multiplexing, phase multiplexing, and polarization rotation, creating wavelength‐selective polarization digital numbers. A deep learning approach is used to increase the identification accuracy of the digital numbers. The approach can simultaneously control wavelength and polarization, providing more design flexibility. This work may find applications in many fields such as virtual reality, image steganography, and anti‐counterfeiting.
AB - Polarization and wavelength are two important properties of light for understanding optics. Engineered polarization and wavelength profiles have received considerable interest due to their unusual optical features and more degrees of freedom. However, to simultaneously control polarization and wavelengths, conventional methods suffer from big pixel size, complicated fabrication process, and limited levels in phase control. The unprecedented capability of metasurfaces in the light control has shown much promise to tackle these challenges. Polarization digital numbers with ten different wavelengths are proposed and experimentally realized. A geometric metasurface is used to simultaneously realize wavelength multiplexing, phase multiplexing, and polarization rotation, creating wavelength‐selective polarization digital numbers. A deep learning approach is used to increase the identification accuracy of the digital numbers. The approach can simultaneously control wavelength and polarization, providing more design flexibility. This work may find applications in many fields such as virtual reality, image steganography, and anti‐counterfeiting.
KW - convolutional neural networks
KW - multiple polarization profiles
KW - optical metasurfaces
KW - polarization manipulation
KW - polarization profile engineering
KW - wavelength multiplexing
UR - http://www.scopus.com/inward/record.url?scp=85154064434&partnerID=8YFLogxK
U2 - 10.1002/adom.202203097
DO - 10.1002/adom.202203097
M3 - Article
SN - 2195-1071
JO - Advanced Optical Materials
JF - Advanced Optical Materials
ER -