英语语法分析

Focusing properties of the vortex beams with axicon is studied.

研究了涡旋光束通过轴棱锥聚焦后的聚焦特性。

Axicon is one of the most efficient elements to generate Non-diffraction beams.

轴棱锥是产生无衍射光束的最有效光学元件之一。

Numerical calculations show that after focused by the axicon, a vortex beam can convert into a high-order Bessel beam.

数值模拟结果表明，涡旋光束经过轴棱锥聚焦后可获得高阶贝塞尔光束。