中国激光, 2012, 39 (s2): s202004, 网络出版: 2012-12-24
红色LED光源产生部分相干涡旋光束
Red LED Light Source Generates Partially Coherent Vortex Beams
光学器件 发光二极管 相干光学 部分相干 涡旋光束 optical devices light-emitting diodes coherence optics partially coherence vortex beam
摘要
利用大功率单芯片红色发光二极管（LED）辐射出的光，入射到螺旋相位板，获得LED部分相干涡旋光。通过调节光的传输距离，获得不同相干度的部分相干光，分析并观察相干度对红光LED部分相干涡旋光束的影响。此外，还研究了涡旋光束拓扑荷数对部分相干涡旋光束光强分布的影响。实验结果和理论模拟基本一致。
Abstract
Partially coherent vortex beams are generated under the illumination of high power red-color light-emitting diodes (LED). The influence of the correlation property of partially coherent vortex beam, which can be modulated by adjusting the propagation distance, on the intensity distribution is studied. The effect of the topological charge of vortex beam on the intensity is investigated as well. The experimental results are consistent with the theoretical simulations.
崔省伟, 陈子阳, 蒲继雄. 红色LED光源产生部分相干涡旋光束[J]. 中国激光, 2012, 39(s2): s202004. Cui Shengwei, Chen Ziyang, Pu Jixiong. Red LED Light Source Generates Partially Coherent Vortex Beams[J]. Chinese Journal of Lasers, 2012, 39(s2): s202004.
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