Wang Xiao-Zhang, Li Qi, Xiong Zhi-Peng, Zhang Ze, Wang Qi
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, P.O. Box 3031, No. 2 YiKuang Street, Harbin 150080, China.
Appl Opt. 2013 May 1;52(13):3039-47. doi: 10.1364/AO.52.003039.
The method of superimposing multiple phase patterns to generate and deflect multi Airy beams is proposed in this paper. A Dammann grating and an optimized splitting grating are superimposed, respectively, with an Airy cubic phase pattern to generate an array of 4×4 equal-space Airy beams. By adding a deflection grating to the superimposed phase patterns, the transverse self-accelerated Airy beams array can be deflected arbitrarily in two-dimensional plane. The impacts of superimposed phase patterns on the transverse acceleration and size of main lobe of Airy beams in array are discussed in this paper. Meanwhile, the accuracy of the steering method and the impact of the phase modulation depth on the size of the Airy beams are introduced.
本文提出了一种叠加多个相位图样以生成和偏转多艾里光束的方法。分别将一个达曼光栅和一个优化的分光光栅与一个艾里立方相位图样叠加，以生成一个4×4等间距艾里光束阵列。通过在叠加的相位图样中加入一个偏转光栅，可使横向自加速艾里光束阵列在二维平面内任意偏转。本文讨论了叠加相位图样对阵列中艾里光束横向加速度和主瓣尺寸的影响。同时，介绍了转向方法的精度以及相位调制深度对艾里光束尺寸的影响。
