1. See e.g., S. Aoki and S. Kikuta: Japan J. Appl. Phys. 13, 1385–1392 (1974); M.R. Howells, M.A. Iarocci, and J. Kirz: J. Opt. Soc. Am. A ia., 2171–2178 (1986); and references therein.
2. A. Baez: J. Opt. Soc. Am. 42, 756–762 (1952).
3. M.R. Howells, M.A. Iarocci, J. Kenney, J. Kirz, and H. Rarback: Proc. SPIE 447, 193–203 (1984).
4. G.C. Bjorklund, S.E. Harris, and J.F. Young: Appl. Phys. Lett. 25, 451–452 (1974).
5. S. Aoki and S. Kikuta: In Short wavelength coherent radiation: generation and applications ed. by D.T. Attwood and J. Bokor (Am. Inst. Phys. conf. proc. 147, New York, 1986 ), pp. 49–56.