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Your search keyword '"Scacco, Augusto"' showing total 11 results
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11 results on '"Scacco, Augusto"'

1. Polarized wave coupling and selection rules violation in alkali-halide crystals with F(sub A) centers

Author

Baldacchini, Giuseppe, Boiko, Sergei A., Francini, Roberto, Grassano, Umberto M., Scacco, Augusto, Shpak, Andrei M., and Tarasov, Georgiy G.

Subjects
Holography -- Research, Diffraction -- Research, Polarization (Light) -- Research, Business, Computers, Electronics, Electronics and electrical industries
Abstract

The self-diffraction of light in alkali-halide (KCl) crystals with FA centers was investigated to determine the role of F(subA) center kinetics under resonant optical excitation in polarization holographic recording. It was shown that the diffraction efficiency can be substantially increased when the population of the active orientations is increased by lateral illumination of the crystal with an auxiliary beam. This indicates that the the factor characterizing the selection rules violation for F(subA) center strongly influences the self-diffraction properties of KCl crystals.

Published
1998

8. Polarized wave coupling and selection rules violation in alkali-halide crystals with FA centers.

Author

Baldacchini, Giuseppe, Boiko, Sergei A., Francini, Roberto, Grassano, Umberto M., Scacco, Augusto, Shpak, Andrei M., and Tarasov, Georgiy G.

Subjects
QUANTUM electronics, POLARIZATION (Electricity)
Abstract

Focuses on the elucidation of the role of the FA -center relaxation peculiarities under resonant optical excitation in polarization. Presentation of the self-diffraction data for KCI crystals; Analysis of the conditions for diffraction efficiency; Information on the results.

Published
1998
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11. Pb2 Defects in perovskite-like KMgF3 crystals

Author

Missori, Mauro, Sanipoli, Carlo, and Scacco, Augusto

Abstract

The physical properties of Pb2+ impurities in the perovskite-like lattice of KMgF3 are very similar to those of (ns)2 ions in alkali halides. The impurity inhomogeneous distribution leads to high dopant levels in the bottom region of the crystals, with a segregation coefficient equal to 0. 020. The optical features of the 336 nm emission support its attribution to luminescence of Pb2+ ions from the relaxed excited B state.

Published
1991
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