Efficiency-enhanced reflective nanosieve holograms

Efficiency-enhanced reflective nanosieve holograms

Chinese Optics Letters

10.3788/COL202220.053602

http://dx.doi.org/10.3788/col202220.053602

Samia Osman Hamid Mohammed, Dong Zhao, Syed Yasir Azeem, Xiaoming Goh, Shawn J. Tan, Jinghua Teng, Kun Huang

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics

25 March 2022

Mohammed, S. O. H., Zhao, D., Azeem, S. Y., Goh, X., Tan, S. J., Teng, J., & Huang, K. (2022). Efficiency-enhanced reflective nanosieve holograms. Chinese Optics Letters, 20(5), 053602. https://doi.org/10.3788/col202220.053602

Photon nanosieves, as amplitude-type metasurfaces, have been demonstrated usually in a transmission mode for optical super-focusing, display and holography, but the sieves with subwavelength size constrain optical transmission, thus leading to low efficiency. Here, we report reflective photon nanosieves that consist of metallic meta-mirrors sitting on a transparent quartz substrate. Upon illumination, these meta-mirrors offer the reflectance of ~50%, which is 2~45 times higher than the transmission of visible light through diameter-identical nanoholes. Benefiting from this configuration, a meta-mirror-based reflective hologram has been demonstrated with good consistence between theoretical and experimental results over the broadband spectrum from 500 nm to 650 nm, meanwhile exhibiting the total efficiency of ~7%. Additionally, if an additional high-reflectance layer is employed below these meta-mirrors, the efficiency can be enhanced further for optical anti-counterfeiting. © 2021 Optical Society of America

Publisher Copyright

This research / project is supported by the A*STAR - AME Individual Research Grants
Grant Reference no. : A2083c0058

This research / project is supported by the A*STAR - Central Research Fund (CRF)
Grant Reference no. : N.A

National Natural Science Foundation of China (Grant No. 12134013 and 61875181), USTC Research Funds of the Double First-Class Initiative (Grant No. YD2030002003), “the Fundamental Research Funds for the Central Universities” in China, the CAS Poineer Hundred Talents Program. J.

© 2022 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

https://oar.a-star.edu.sg/communities-collections/articles/18490

1671-7694

Institute of Materials Research and Engineering