Simultaneous shaping of amplitude and phase of light in the entire output plane with a phase-only hologram.
Simultaneous shaping of amplitude and phase of light in the entire output plane with a phase-only hologram.
复制标题
使用纯相位全息图在整个输出平面中同时整形光的振幅和相位
DOI：
10.1038/srep15426
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发表时间：
2015-10-21
影响因子：
4.6
通讯作者：
Tao S
中科院分区：
文献类型：
--
作者：
Wu L;Cheng S;Tao S
提出了一种迭代光束整形算法来同时整形光束的幅度和相位。该算法由一个输入平面和两个完全重叠的输出平面组成，输出平面指的是实空间中的输出平面。两个输出平面都受到幅度和相位约束，并且两个输出平面中的约束面积是互补的。因此，整个输出平面的幅度和相位都是可控的，并且可以通过所提出的算法实现任意目标复幅度。该算法的计算结果是纯相位分布，可以通过空间光调制器或制造的衍射光学元件方便地实现。仿真和实验都验证了所提算法的高性能。
An iterative beam shaping algorithm is proposed to simultaneously shape the amplitude and phase of an optical beam. The proposed algorithm consists of one input plane and two completely overlapped output planes which refer to the output plane in real space. The two output planes are imposed with both amplitude and phase constraints and the constrained areas in the two output planes are complementary. As a result, both the amplitude and phase in the entire output plane are controllable and arbitrary target complex amplitudes can be achieved with the proposed algorithm. The computing result of the proposed algorithm is a phase-only distribution which can be conveniently realized with a spatial light modulator or a fabricated diffractive optical element. Both simulations and experiments have verified the high performance of the proposed algorithm.