Design of scalable metalens array for optical addressing
Tie Hu , Xing Feng , Zhenyu Yang , Ming Zhao
Front. Optoelectron. ›› 2022, Vol. 15 ›› Issue (3) : 32
Design of scalable metalens array for optical addressing
Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for finance, pharmaceutical industry, fundamental chemistry and other fields. Currently, a big challenge for trapped-ion quantum computers is the poor scalability mainly brought by the optical elements that are used for optical addressing. Metasurfaces provide a promising solution due to their excellent flexibility and integration ability. Here, we propose and numerically demonstrate a scalable off-axis metalens array for optical addressing working at the wavelength of 350 nm. Metalens arrays designed for x linearly polarized and left circularly polarized light respectively can focus the collimated addressing beam array into a compact focused spot array with spot spacing of 5 μm, featuring crosstalk below 0.82%.
Metalens array / Optical addressing / Scalability
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The Author(s)
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