Dual-band complex-amplitude metasurface empowered high security cryptography with ultra-massive encodable patterns-Reference-Cited by-同舟云学术

Dual-band complex-amplitude metasurface empowered high security cryptography with ultra-massive encodable patterns

Published:2024-07-24 Issue:20 Volume:13 Page:3915-3924
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Gu Zhen¹^ORCID,Xie Rensheng²^ORCID,Liu Haoyang³,Liu Yiting⁴,Wang Xiong³^ORCID,Zhang Hualiang⁵,Gao Jianjun¹,Si Liming⁶,Chen Shuqi⁷^ORCID,Ding Jun¹

Affiliation:

1. Shanghai Key Laboratory of Multidimensional Information Processing, Key Laboratory of Polar Materials and Devices , 12655 East China Normal University , Shanghai 200241 , China

2. Department of Broadband Communication , Peng Cheng Laboratory , Shenzhen 518108 , China

3. School of Information Science and Technology , ShanghaiTech University , Shanghai 201210 , China

4. The College of Engineering, Computing and Cybernetics , Australian National University , Canberra , ACT 2601 , Australia

5. Department of Electrical and Computer Engineering , University of Massachusetts Lowell , Lowell , MA 01854 , USA

6. Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics , Beijing Institute of Technology , Beijing 100081 , China

7. The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics and TEDA Institute of Applied Physics , Nankai University , Tianjin 300071 , China

Abstract

Abstract The significance of a cryptograph method lies in its ability to provide high fidelity, high security, and large capacity. The emergence of metasurface-empowered cryptography offers a promising alternative due to its unparalleled wavefront modulation capabilities and easy integration with traditional schemes. However, the majority of reported strategies suffer from limited capacity as a result of restricted independent information channels. In this study, we present a novel method of cryptography that utilizes a dual-band complex-amplitude meta-hologram. The method allows for the encoding of 225 different patterns by combining a modified visual secret-sharing scheme (VSS) and a one-time-pad private key. The use of complex-amplitude modulation and the modified VSS enhances the quality and fidelity of the decrypted results. Moreover, the transmission of the private key through a separate mechanism can greatly heighten the security, and different patterns can be generated simply by altering the private key. To demonstrate the feasibility of our approach, we design, fabricate, and characterize a meta-hologram prototype. The measured results are in good agreement with the numerical ones and the design objectives. Our proposed strategy offers high security, ultra-capacity, and high fidelity, making it highly promising for applications in information encryption and anti-counterfeiting.

Funder

National Natural Science Foundation of China

National Key R&D Program of China

China Postdoctoral Science Foundation

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2024-0314/pdf

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