网页2022年5月10日 · 实验结果表明,本文方法制备的高阶贝塞尔涡旋光束的模式纯度虽然不及衍射一级,但却可以将衍射效率提升约4.5倍。. Abstract. At present, the commonly used complex amplitude modulation method of light field is mainly realized by diffraction effect, which results in low energy utilization efficiency.