Focusing of an elliptic vortex beam by a square Fresnel zone plate.
Focusing of an elliptic vortex beam by a square Fresnel zone plate.
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DOI：
10.1364/ao.50.002204
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发表时间：
2011-05
期刊：
影响因子：
1.9
通讯作者：
Ziyang Chen;Daomu Zhao
中科院分区：
文献类型：
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作者：
Ziyang Chen;Daomu Zhao
我们提出了一种新的（据我们所知）进行光束整形的方法。计算表明，通过选择合适的椭圆涡旋光束入射参数，可以在方形菲涅耳波带片焦平面上产生菱形、菱形和带菱形暗芯的空心光束。数值仿真结果表明了该方法的有效性。
We propose a new (to our knowledge) method for performing beam shaping. Calculations show that beam patterns including diamond, rhombus, and hollow beam with diamond-shaped dark core can be generated in the focal plane of a square Fresnel zone plate by choosing appropriate parameters of an incident elliptic vortex beam. Numerical simulations have demonstrated the validity and effectiveness of this method.