Infrared and Laser Engineering, Volume. 49, Issue 9, 20201034(2020)
Multi-dimensional metasurface and its application in information encryption and anti-counterfeiting
Metasurface is an artificial layered material with a subwavelength or wavelength-scale thickness. By adjusting the size, shape, orientation angle, displacement, etc. of the metasurface nanostructures, dimensions of electromagnetic wave including frequency, amplitude, phase, polarization, wavelength, etc. can be flexibly and effectively controlled. Metasurface has various characteristics including the ultra-thin thickness, broadband, low loss, easy processing, flexible design and powerful functionalities. This paper reviewed metasurfaces capable of one-dimensional, two-dimensional, multi-dimensional, and active light field manipulations and their applications in information encryption and anti-counterfeiting. An outlook was given for the future development trend of multi-dimensional metasurfaces. Compared with the traditional information encryption and anti-counterfeiting technology, the metasurface has the superior advantages in sub-wavelength pixels, precise controlling and ultra-secure factor in information encryption and anti-counterfeiting. Its bright future to replace the traditional information encryption and anti-counterfeiting technology was envisioned, and its broad application prospects were underpinned.
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Zilan Deng, Qing'An Tu, Xiangping Li. Multi-dimensional metasurface and its application in information encryption and anti-counterfeiting[J]. Infrared and Laser Engineering, 2020, 49(9): 20201034
Category: Special issue-Metasurface empowered manipulation of wavefront
Received: Jun. 1, 2020
Accepted: --
Published Online: Jan. 4, 2021
The Author Email: Li Xiangping (xiangpingli@jnu.edu.cn)