中国激光, 2019, 46 (1): 0104008, 网络出版: 2019-01-27
复合涡旋光束拓扑荷数测量的仿真研究 
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Simulation for Measuring the Topological Charges of Composite Vortex Beams
图 & 表
图 2. 复合光束经β=30°、不同Δψ下椭圆形光阑后的远场衍射光强分布。(a) Δψ=0°,l1=4;(b) Δψ=30°,l1=4;(c) Δψ=90°,l1=4;(d) Δψ=150°,l1=4;(e) Δψ=0°,l1=-4; (f) Δψ=30°,l1=-4;(g) Δψ=90°,l1=-4; (h) Δψ=150°,l1=-4
Fig. 2. Distribution of far-field diffraction of composite beams through an elliptic aperture with different Δψ and β=30°. (a) Δψ=0°, l1=4; (b) Δψ=30°, l1=4; (c) Δψ=90°, l1=4; (d) Δψ=150°, l1=4; (e) Δψ=0°, l1=-4; (f) Δψ=30°, l1=-4; (g) Δψ=90°, l1=-4; (h) Δψ=150°, l1=-4
图 3. l1=4,l2=10的复合光束在不同传输距离处的光强分布。(a) z=1 km;(b) z=2 km;(c) z=3 km;(d) z=4 km
Fig. 3. Intensity distribution of multiplexed beams with l1=4 and l2=10 at different distances. (a) z=1 km; (b) z=2 km; (c) z=3 km; (d) z=4 km
表 1复合光束拓扑荷值、光强图亮条纹数及衍射图中暗条纹数
Table1. Topological charge values of composite beams, number of bright stripes in light intensity pattern and number of dark stripes in diffraction patterns
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毛宁, 韦宏艳, 蔡冬梅, 贾鹏. 复合涡旋光束拓扑荷数测量的仿真研究[J]. 中国激光, 2019, 46(1): 0104008. Mao Ning, Wei Hongyan, Cai Dongmei, Jia Peng. Simulation for Measuring the Topological Charges of Composite Vortex Beams[J]. Chinese Journal of Lasers, 2019, 46(1): 0104008.
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