EFFECT OF SR IMPURITY ON OPTICAL DAMAGE OF CRYSTALLINE POTASSIUM CHLORIDE
https://doi.org/10.17073/1609-3577-2014-1-13-16
Abstract
This paper reports results on the effect of Sr impurity on damage of crystalline potassium chloride under exposure to laser irradiation. The experimental data are accounted for using the photochemical model of laser damaging. We assume that the light scattering impurity centers are in the form of large aggregates of impurity/vacancy dipoles. The state of the impurity was monitored using light scattering. Under laser irradiation, photochemical reactions occur in the impurity centers, and the accumulating products of these reactions damage the crystals. We have found a correlation between the concentration of the impurity in the equilibrium impurity aggregates and the concentration of the damage initiating centers. We show that laser irradiation produces anion vacancies in impurity agglomeration areas and causes accumulation of F centers followed by the formation of colloidal quasimetallic particles on which specimen breakdown occurs. EPR spectroscopy revealed colloidal particles having quasimetallic properties.
About the Authors
A. A. Blistanov
National University of Science and Technology «MISiS», 119049, Russia, Moscow, 119049, Moscow, Leninskiy prospekt 4
Russian Federation
Professor
Russian Federation
Professor
O. M. Kugayenko
National University of Science and Technology «MISiS», 119049, Russia, Moscow, 119049, Moscow, Leninskiy prospekt 4
Russian Federation
Candidate of Physico−Mathematical Sciences, Senior Research Associate
Russian Federation
Candidate of Physico−Mathematical Sciences, Senior Research Associate
L. A. Vasilyeva
Volgograd State University of Architecture and Civil Engineering, 400074, Russia, Volgograd, Akademicheskaya St., 1
Russian Federation
Candidate of Physico−Mathematical Sciences, Associate Professor
Russian Federation
Candidate of Physico−Mathematical Sciences, Associate Professor
References
1. Bekturganov K., Blistanov A. A., Shaskol’skaya M. P. Light dispersion by crystals of chloride potassium. Fizika tverdogo tela. 1974, vol. 16, no. 4, pp. 1036—1038. (In Russ.).
2. Blistanov A. A., Kugaenko O. M., Chub F. S. Determination of geometrical parameters of the impurity centers by a method of dispersion of light. Kristallografiya. 1979, vol. 24, iss. 2. pp. 310—314. (In Russ.).
3. Bebchuk A. S., Ulanov S. F. Optical breakdown of crystals of KCl on the localized conditions. Zhurnal tekhnicheskoi fiziki. 1981, vol. 51, no. 10, pp. 2198—2200. (In Russ.).
4. Vasil’eva L. A., Gorn I. A., Kugaenko O. M. The nature of the defects arising in crystals of chloride potassium under the influence of laser radiation of prethreshold intensity. Izvestiya vuzov. Materialy elektronnoi tekhniki = Materials of Electronic Technics. 1998, no. 4, pp. 23—26. (In Russ.).
5. Blistanov A. A., Kugaenko O. M., Vasil’eva L. A. Accumulation of laser damage in potassium chloride. Izvestiya vuzov. Materialy elektronnoi tekhniki = Materials of Electronic Technics. 1998, no. 3, pp. 39—43. (In Russ.).
6. Braunlich, P. F., Brost G., Schmid A., Kelly P. J. The role of laser-induced primary defect formation in optical breakdown of NaCl. IEEE J. Quantum Electronics. 1981, vol. QE-17, no. 10, pp. 2034—2041.
7. Larson, L. A., Oda T., Braunlich P. F., Dickinson J. T. Emission of Cl atoms from NaCl during Vk-center decomposition. Solid State Commun. 1979, vol. 32, pp. 347—351.
Review
For citations:
Blistanov A.A., Kugayenko O.M., Vasilyeva L.A. EFFECT OF SR IMPURITY ON OPTICAL DAMAGE OF CRYSTALLINE POTASSIUM CHLORIDE. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering. 2014;(1):13-16. (In Russ.) https://doi.org/10.17073/1609-3577-2014-1-13-16
Views:
889
Email this article 