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Jia-Ying Suo on Muck Rack

Jia-Ying Suo

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Multifunctional reconfigurable terahertz metasurface for dynamic switching between perfect absorption and deflected vortex beam generation

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By Shuang Wang, Zhen-Xu Bai, Jia-Ying Suo
| Optica Verified
We propose a multifunctional terahertz (THz) metasurface based on a multilayer vanadium dioxide ($\text{VO}_{2}$) hybrid structure that achieves high-contrast switching between a perfect absorber and an off-axis vortex beam generator. In the metallic state, the metasurface operates as a high-performance absorber, exhibiting a near-perfect absorption exceeding 99% at 2.3 THz, with a fractional bandwidth of 43%.
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