[11] [11] DUTTON B, CLOUGH A R, ROSLI M H, et al. Non-contact ultrasonic detection of angled surface defects［J］. NDT & E International, 2011, 44(4): 353-360.

[15] [15] ARIAS I, ACHENBACH J D. A model for the ultrasonic detection of surface-breaking cracks by the scanning laser source technique［J］. Wave Motion, 2004, 39(1): 61-75.

[17] [17] ARIAS I, ACHENBACH J D. Thermoelastic generation of ultrasound by line-focused laser irradiation［J］. International Journal of Solids and Structures, 2003, 40(25): 6917-6935.

[18] [18] CHEN D, LV G, GUO S F, et al. Subsurface defect detection using phase evolution of line laser-generated Rayleigh waves［J］. Optics & Laser Technology, 2020, 131: 106410.

[20] [20] COOPER J A, DEWHURST R J, PALMER S B, et al. Characterization of surface-breaking defects in metals with the use of laser-generated ultrasound［J］. Philosophical Transactions of the Royal Society of London Series A, Mathematical and Physical Sciences, 1986, 320(1554): 319-328.

[22] [22] WANG C Y, SUN A Y, XUE M S, et al. Width gauging of surface slot using laser-generated Rayleigh waves［J］. Optics & Laser Technology, 2017, 92: 15-18.

[23] [23] MATSUDA Y, NAKANO H, NAGAI S, et al. Surface breaking crack evaluation with photorefractive quantum wells and laser-generated Rayleigh waves［J］. Applied Physics Letters, 2006, 89(17): 171902.