光学学报, 2018, 38 (11): 1126002, 网络出版: 2019-05-09
部分相干螺旋自加速贝塞尔光束 
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Partially Coherent Spiral Self-Accelerating Bessel Beam
图 & 表
图 1. 微分割轴棱锥及螺旋贝塞尔光束传输轨迹。(a)微分割轴棱锥; (b)零阶螺旋贝塞尔光束; (c)高阶螺旋贝塞尔光束
Fig. 1. Microsectioning axicon and transmission trajectory of spiral Bessel beam. (a) Microsectioning axicon; (b) zero-order spiral Bessel beam; (c) high-order spiral Bessel beam
图 2. 全息相位图。(a) Γ=6,Δ=10 μm; (b) Γ=-6,Δ=10 μm; (c) Γ=3,Δ=10 μm
Fig. 2. Holographic phase diagrams. (a) Γ=6,Δ=10 μm; (b) Γ=-6,Δ=10 μm; (c) Γ=3,Δ=10 μm
图 4. 不同距离下部分相干螺旋贝塞尔光束的传输特性。(a) z=30 mm; (b) z=60 mm; (c) z=90 mm; (d) z=120 mm; (e) z=150 mm; (f) z=30 mm; (g) z=60 mm; (h) z=90 mm; (i) z=120 mm; (j) z=150 mm; (k) z=30 mm; (l) z=60 mm; (m) z=90 mm; (n) z=120 mm; (o) z=150 mm
Fig. 4. Propagation properties of partially coherent spiral Bessel beams under different distances. (a) z=30 mm; (b) z=60 mm; (c) z=90 mm; (d) z=120 mm; (e) z=150 mm; (f) z=30 mm; (g) z=60 mm; (h) z=90 mm; (i) z=120 mm; (j) z=150 mm; (k) z=30 mm; (l) z=60 mm; (m) z=90 mm; (n) z=120 mm; (o) z=150 mm
图 5. 相干长度对光场分布特性的影响(z=60 mm)。(a) l=0; (b) l=1; (c) l=2
Fig. 5. Influence of coherent length on optical field distribution (z=60 mm). (a) l=0; (b) l=1; (c)l=2
图 6. 光场对比度变化曲线。(a)光场对比度随传输距离的变化曲线(σ0=0.6 mm);(b)光场对比度随相干长度的变化曲线(z=60 mm)
Fig. 6. Change curves of light field contrast. (a) Light field contrast versus transmission distance (σ0=0.6 mm); (b) light field contrast versus coherent length (z=60 mm)
胡润, 陈婧, 吴逢铁, 胡汉青, 杨艳飞. 部分相干螺旋自加速贝塞尔光束[J]. 光学学报, 2018, 38(11): 1126002. Run Hu, Jing Chen, Fengtie Wu, Hanqing Hu, Yanfei Yang. Partially Coherent Spiral Self-Accelerating Bessel Beam[J]. Acta Optica Sinica, 2018, 38(11): 1126002.
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