.png){kind=icon}
.png){kind=icon}
Return
Optical Metasurface Generated Vector Beam for Anticounterfeiting
.png){kind=icon}
PRE
AI
DOI：10.1103/PhysRevApplied.10.034028.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
With the rapid development of optical metasurfaces, anticounterfeiting methods continue to evolve. Recently, the unprecedented capability of optical metasurfaces in the local manipulation of the light's polarization has been used to generate arbitrary polarization profiles, providing an unusual method for anticounterfeiting. We experimentally demonstrate a metasurface device that can hide a quick response (QR) code in the polarization profile of a laser beam. The desired space-variant polarization profile originates from the superposition of two circularly polarized light beams with opposite handedness based on a single metasurface. A linear polarizer is used to reveal the hidden QR code. The anticounterfeiting property of such a device has potential applications in product identification, item tracking, and document management.
Keywords:
PHASE DISCONTINUITIES
LIGHT-PROPAGATION
LASER-BEAM
HOLOGRAMS
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.