[1] [1] Xiong B, Wang Z, Lu X et al.. Application of real-time holographic method to the micro-crack nucleation process study. Proc. SPIE, 2000, 4221:326～330

[2] [2] Xu Z, Yang R, Zhao J et al.. Experimental study of seismic short-imminent precursory mechanism by new methods and technique. Proc. 2nd APEC Cooperation for Earthquake Simulation (ACES), 2000. 101～108

[8] [8] Su Xianji, Li Zheng. Dynamic Testing Technology for Solid Mechanics. Beijing: High Education Press, 1997. 159～181

[9] [9] Hecht E, Zajac A. Optics. London: Addison-Wesley Publishing Co., 1974. 176～177

[10] [10] Xu Z, Yang R, Zhao J et al.. Experimental study of the process zone, nucleation zone and plastic area of earthquakes by the shadow optical method of caustics. Pure and Applied Geophysics, 2002, 159(9): 1951～1966

[11] [11] Xiong Bingheng, Li Junchang, Wang Zhengrong et al.. Quantitative relation between caustic phenomena and holographic fringes. Practical Holography ⅩⅥ, part of IS&T/SPIE′s Electronic Imaging 2004, Jan., San Jose, CA, USA