Всем привет. Помогите скчать следующие статьи:
1. R. R. Alfano, and S. L. Shapiro, "Emission in the region 4000 to 7000 Â via four-photon
coupling in glass," Phys. Rev. Lett. 24, 584 (1970).
http://prl.aps.org/abstract/PRL/v24/i11/p584_12. R. R. Alfano, and S. L. Shapiro, "Observation of self-phase-modulation and small-scale
filaments in crystals and glasses," Phys. Rev. Lett. 24, 592 (1970).
http://prl.aps.org/abstract/PRL/v24/i11/p592_13. R.R. Alfano, P.P. Ho, P.A. Fleuryb and H.J. Guggenheim, "Nonlinear optical effects in antiferromagnetic KniF3", Optics Communications, Volume 19, Issue 2, November 1976, Pages 261-264
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