HIGHLIGHTS
- who: Xiaoyan Sun and collaborators from the State Key Laboratory of High Performance Complex Manufacturing, South University, Changsha, China have published the Article: An Annular Fresnel Zone Plate without Central Spots Fabricated by Femtosecond Laser Direct Writing, in the Journal: Micromachines 2022, 13, x FOR PEER REVIEW The focusing process of an AFZP with of /2022/
- what: In this study, a laser beam with an annular distribution was obtained by focusing the annular Fresnel zone plate (AFZP), and a method of eliminating the center energy of the annular beam was obtained through research.
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