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Can I read Switchable Active Phase Modulation and Holography Encryption Based on Hybrid Metasurfaces on EtoBox?
Switchable Active Phase Modulation and Holography Encryption Based on Hybrid Metasurfaces by Hongqiang Zhou; Yongtian Wang; Xiaowei Li; Qing Wang; Qunshuo Wei; Guangzhou Geng; Lingling Huang is a Engineering article available to read on EtoBox.
What is Switchable Active Phase Modulation and Holography Encryption Based on Hybrid Metasurfaces about?
Metasurfaces are planar devices containing delicately designed nanoantenna or resonator arrays that allow for beam shaping, super resolution imaging, and holography. Hybrid metasurface -by integrating with tunable materials such as two-dimensional materials and phase change materials (PCMs) -provides a potential platform for active modulation of wavefronts. Specifically, PCMs can flexibly switch between crystalline and amorphous states with nonvolatile property under external stimuli and provide a large refractive permittivity contrast. Using metasurfaces based on PCM to manipulate wavefronts may provide new opportunities for switchable functionalities. Here, we propose two types of metasurface devices based on whole PCM films to realize switchable holography and simultaneous phase and interference encryption. This feature can be used to encrypt information in a switched state and store camouflage information in the other state by simply applying external thermal stimuli to the entire metasurface. This method can be applied in areas such as beam shaping, optical encryption, and anti-counterfeiting.
Who reads Switchable Active Phase Modulation and Holography Encryption Based on Hybrid Metasurfaces?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Hongqiang Zhou; Yongtian Wang; Xiaowei Li; Qing Wang; Qunshuo Wei; Guangzhou Geng; Lingling Huang
- Publisher
- Walter de Gruyter GmbH
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)