[1] [1] Li Qi, Gao Huide, Dong Yunhua, et al． Investigation of diffractive optical element for shaping a Gaussian beam into a ring-shaped pattern[J]. Optics & Laser Technology, 1998, 30(8): 511-514.

[2] [2] Qiu Jianping, Liu Nanchun, Xia Yong, et al. Generation of hollow laser beams and their applications in modern optics [J]. Progress in Physics, 2004, 24(3): 336-380.

[3] [3] Brzobohaty O, Karasek V, Siler M, et al. Experimental demonstration of optical transport, storing and self-arrangement using a ‘tractor beam’[J]. Nature Photonics, 2013, 7(2): 123-127.

[4] [4] Grier D G. A revolution in optical manipulation [J]. Nature, 2003, 424(6950): 810-816.

[5] [5] Hurlbut W C, Norton B J, Amer N, et al. Manipulation of terahertz waveforms in nonlinear optical crystals by shaped optical pulses [J]. Opt Soc Am B, 2006, 23(1): 90-93.

[6] [6] Li D, Ma G, Ge J, et al. Terahertz pulse shaping via birefringence in lithium niobate crystal [J]. Appl Phys B, 2009, 94(4): 623-628.

[7] [7] Fienup J R. Phase retrieval algorithms: a comparison[J]. Applied Optics, 1982, 21(15): 2758-2769.

[8] [8] Yu Hao, Huang Linhai, Rao Changhui, et al. Application of G-S algorithm to the control of beam near-field intensity [J]. Chinese Journal of Lasers, 2010, 37(5): 1259-1264.

[9] [9] Ma Xinxue, Wang Jianli, Wang Bin, et al. Study on phse retrieval algorithm [J]. Laser & Infrared, 2012, 42(2): 217-221.