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[期刊论文] 作者：张晨初,叶罕昌,曹锐,姬生云,张衡,赵麟寒,吴思竹,翟华,
来源：ChineseOpticsLetters 年份：2022
A ring-shaped focus, such as a focused vortex beam, has played an important role in microfabrication and optical tweezers. The shape and diameter of the ring-shaped focus can be easily adjusted by the topological charge of the vortex. Howev......
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