[1] [1] Arie A, Voloch N. Periodic, quasi-periodic, and random quadratic nonlinear photonic crystals ［J］. Laser and Photonics Reviews, 2010, 4(3): 355-373.

[2] [2] Suchowski Haim, Prabhudesai Vaibhav, et al. Robust adiabatic sum frequency conversion ［J］. Opt. Expr., 2009, 17(15): 12731-12740.

[4] [4] Chen Xiyi, Nadiarynkh Oleg, et al. Second harmonic generation microscopy for quantitative analysis of collagen fibrillar structure ［J］. Nature Protocols, 2012, 7: 654-669.

[5] [5] Campagnola P J, Dong C Y. Second harmonic generation microscopy: Principles and applications to disease diagnosis ［J］. Laser and Photon. Rev., 2011, 5: 13-26.

[6] [6] Sheng Yan, Ma Dongli, et al. Broadband second harmonic generation in one-dimensional randomized nonlinear photonic crystal ［J］. Appl. Phys. Lett., 2011, 99: 031108.

[7] [7] Shealy D L, Hoffnagle J A. Laser beam shaping profiles and propagation ［J］. Appl. Opt., 2006, 45: 5118-5131.

[8] [8] Eyyuboglu H T, Arpali C, et al. Flat topped beams and their characteristics in turbulent media ［J］. Opt. Expr., 2006, 14: 4196-4207.

[9] [9] Zhang Yong, Fluegel B, et al. Total and negative refraction in real crystals for ballistic electrons and light ［J］. Phys. Rev. Lett., 2003, 91(15): 1574041-1574044.

[10] [10] Liu Zheng, Lin Zhifang, et al. Negative refraction and omnidirectional total transmission at a planar interface associated with a uniaxial medium ［J］. Phys. Rev. B, 2004, 69(11): 1154021-1154026.

[11] [11] Gori F. Flattened Gaussian beams ［J］. Opt. Comm., 1994, 107: 335-341.

[12] [12] Kong Jin Au, Wu Bae-lan, et al. Lateral displacement of a Gaussian beam reflected from a grounded slab with negative permittivity and permeability ［J］. Appl. Phys. Lett., 2002, 80: 2084-2086.