Variable shape or variable diameter flattop beam tailored by using an adaptive weight FFT-based iterative algorithm and a phase-only liquid crystal spatial light modulator
Variable shape or variable diameter flattop beam tailored by using an adaptive weight FFT-based iterative algorithm and a phase-only liquid crystal spatial light modulator
复制标题
使用基于自适应权重 FFT 的迭代算法和纯相位液晶空间光调制器定制可变形状或可变直径平顶光束
DOI:
10.1016/j.optcom.2012.08.081
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发表时间:
2012-11
影响因子:
2.4
通讯作者:
Yang Xia
中科院分区:
文献类型:
--
作者:
Dong Wang;Jian Zhang;Hao Wang;Yang Xia
The variable shape or variable diameter flattop beam shaping technique by using an adaptive weight FFT-based iterative algorithm (AWFFT-IA) and a phase-only liquid crystal spatial light modulator (PO-LCSLM) is demonstrated. The algorithm is used to design the phase distribution for tailoring central symmetric laser beam into the desired shape or diameter flattop beam, the PO-LCSLM serves as dynamically programmable phase filters, which depend on the designed phase distributions, to retard the incident wavefront as we would expect. The experimental results show that the technique can realize variable shape or variable diameter flattop beam shaping.
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