1. P. V. Ionov, V. V. Voronov, and V. T. Gabrielyan, Fiz. Tverd. Tela (Leningrad) 17(4), 1144 (1975) [Sov. Phys. Solid State 17 (4), 728(1975)].
2. W. Krolikowski, M. Cronin-Golomb, and B. S. Chen, Appl. Phys. Lett. 57, 7 (1990).
3. L. Pryadko, O. Gnatovsky, V. Linnik, and T. Semenets, Proc. SPIE—Int. Soc. Opt. Eng. 2795, 208 (1996).
4. L. Pryadko, O. Gnatovsky, V. Linnik, and Z. Yanchook, Proc. SPIE—Int. Soc. Opt. Eng. 3488, 259 (1997).
5. X. Yue, S. Mendricks, Yi Hu, H. Hesse, and D. Kip, J. Appl. Phys. 83, 3473 (1998).