[1] [1] R. A. Fields, M. Birnbaum, C. L. Fincher. Highly efficient Nd:YVO4 diode-laser end-pumped laser. Appl. Phys. Lett., 1987, 51(23):1885～1886

[2] [2] M. D. Selker, T. J. Tohnston, G. Frangineas. >8.5 Watts of single frequency green from a diode pumped intra-cavity doubled ring laser. Conference on Lasers and Electro-optics, Posteadline Papers, Anaheim, California, June 2～7, 1996. 21

[3] [3] David Hargis, Allen Earman. Diode-pumped microlasers promise portable projectors. Laser Focus World, 1998, (5):243～246

[4] [4] K. Brugger. Thermodynamic definition of higher order elastic coefficients. Phys. Rev. A, 1964, 133:1611～1612

[5] [5] B. A. Auld. Acoustic Fields and Waves in Solids (Volume 1). A Wiley-Interscience Publication, John Wiley, 1873. 163～165

[6] [6] H. A. A. Sider, G. A. Saunders, B. James. The pressure and temperature dependences of the elastic behaviour of lithium tetraborate. J. Phys. Chem. Solids, 1990, 51(5):457～465

[8] [8] W. P. Mason. Physical Acoustic Principles and Methods (Vol.III, Part B.). New York and London: Academic Press, 1965. 26

[9] [9] H. J. McSkimin. Principles and Methods. In: W. P. Mason ed. Physical Acoustic 1 (Part A), New York: Academic Press, 1964. 315～317

[10] [10] Powder Diffraction File, Inorganic Volume, No.PDIS-18iRB; Published by the Joint Committee on Powder Diffraction Standards, 1974, p375, Number 17～341

[11] [11] J. Szilard. Ultrasonic testing, non-conventional testing techniques. A Wiley-Interscience Publication. John Wiley & Sons, 1982. 11～23

[12] [12] Zhang Kecong, Zhang Lehui. Condensed matter physics series-science and technique of crystal growth. Beijing: Science Press, 1997. 401～520 (in Chinese)