光学学报, 2018, 38 (7): 0714001, 网络出版: 2018-09-05
中心主瓣尺寸可精细调控的类贝塞尔光束 
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Bessel-Like Beams with the Precisely Controllable Central Lobe Size
图 & 表
图 2. 直接空间域使用空间光调制器产生贝塞尔光束。(a)实验装置图;(b)无衍射贝塞尔光束的数值仿真结果;(c)加载于SLM上的相位图
Fig. 2. Generation of the Bessel beam by SLM in the direct space. (a) Experimental setup; (b) simulated evolution of the non-diffracting Bessel beam along propagation in the Bessel zone; (c) phase mask loaded on SLM panel
图 3. (a)实验和(b)数值化仿真测量得到的类贝塞尔光束沿传播方向z的传输分布
Fig. 3. (a) Experimental and (b) numerical data of the intensity distribution along the propagation axis of Bessel beams
图 4. 固定初始尺寸(B=289.85)下,不同斜率参数(A1=0.0926 mm-1,A2=0.144 mm-1,A3=0.215 mm-1)对应中心主瓣FWHM随轴向距离z的演化。(a)实验与解析结果;(b)仿真与解析结果
Fig. 4. FWHM evolution of the central lobe along propagation with the same initial size (B=289.85) and different slope rates A1=0.0926 mm-1, A2=0.144 mm-1, A3=0.215 mm-1. (a) Experimental and theoretical results; (b) numerical simulation and theoretical results
图 5. 固定初始尺寸参数下(B=289.85),不同斜率参数对应的类贝塞尔光束在整个贝塞尔区间内最高强度处的横向场分布。 (a) A1=0.0926 mm-1;(b) A2=0.144 mm-1;(c) A3=0.215 mm-1
Fig. 5. Transverse intensity profiles at the location of the peak intensity with fixed initial lobe size (B=289.85) and different slope rates. (a) A1=0.0926 mm-1; (b) A2=0.144 mm-1; (c) A3=0.215 mm-1
图 6. 在相同斜率参数(A=0.0926 mm-1)下,不同初始尺寸(B1=289.85,B2=414.07,B3=579.71)对应的中心主瓣FWHM随轴向距离z的演化。(a)实验与解析结果;(b)仿真与解析结果
Fig. 6. FWHM evolutions of the central lobe along propagation with the same slope rate (A=0.0926 mm-1) and different initial lobe sizes (B1=289.85, B2=414.07, B3=579.71). (a) Experimental and theoretical results; (b) numerical simulation and theoretical results
图 7. 固定斜率参数下( A=0.0926 mm-1),不同初始尺寸参数对应的类贝塞尔光束在整个贝塞尔区间内最高强度处的横向场分布。(a) B3=579.71;(b) B2=414.07;(c) B1=289.85
Fig. 7. Transverse intensity profiles at the location of the peak intensity with fixed slope rate (A=0.926 mm-1) and different initial lobe sizes. (a) B3=579.71; (b) B2=414.07; (c) B1=289.85
倪丹丹, 谢辰, 赵振宇, 肖娜, 张聿全, 胡明列. 中心主瓣尺寸可精细调控的类贝塞尔光束[J]. 光学学报, 2018, 38(7): 0714001. Dandan Ni, Chen Xie, Zhenyu Zhao, Na Xiao, Yuquan Zhang, Minglie Hu. Bessel-Like Beams with the Precisely Controllable Central Lobe Size[J]. Acta Optica Sinica, 2018, 38(7): 0714001.
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