2023
DOI: 10.1002/adom.202301574
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Versatile Optical Tweezer by Geometric Metalens with Phase‐Tailored Focusing Trajectory

Weijie Shi,
Lili Tang,
Shuyan Zhang
et al.

Abstract: A geometric metalens is presented that can achieve a three‐dimensional focusing curve embedded with on‐trajectory tailored phase distribution. The proposed design strategy is highlighted by flexible modulations on both the focusing trajectory and the on‐trajectory gradient phase and by the independent designability between them. The coexisting intensity gradient force and phase gradient force are numerically investigated, which can jointly provide the versatile abilities to push particles along the curve in th… Show more

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