УДК: 535.399

The effect of temperature on the luminescence of molecular clusters of silver in photothermorefractive glasses

Agafonova, D.S., Egorov, V.I., Ignatiev, A.I., Sidorov, A.I.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Агафонова Д.С., Егоров В.И., Игнатьев А.И., Сидоров А.И. Влияние температуры на люминесценцию молекулярных кластеров серебра в фото-термо-рефрактивных стеклах // Оптический журнал. 2013. Т. 87. № 8. С. 51-56.

Agafonova D. S., Egorov V. I., Ignat’ev A. I., and Sidorov A. I. The effect of temperature on the luminescence of molecular clusters of silver in photothermorefractive glasses [in Russian] // Opticheskii Zhurnal. 2013. Т. 87. № 8. Р. 51-56.

For citation (Journal of Optical Technology):

D. S. Agafonova, V. I. Egorov, A. I. Ignat’ev, and A. I. Sidorov, "The effect of temperature on the luminescence of molecular clusters of silver in photothermorefractive glasses," Journal of Optical Technology. 80(8), 506-509 (2013). https://doi.org/10.1364/JOT.80.000506

Abstract:

This paper presents the experimental results of a study of how temperature affects the luminescence of molecular clusters of silver in photothermorefractive glasses. It is shown that, after the glasses are UV-irradiated in the absorption band of cerium ions, intense and broad-band luminescence appears in the visible region. The luminescence centers responsible for this luminescence are neutral silver atoms and neutral molecular clusters of silver. Heat treatment at 350°C causes a tenfold increase of the luminescence intensity. The luminescence intensity decreases by a factor of 10 as the sample’s temperature is increased from 25°C to 200°C. The temperature dependence of the normalized luminescence intensity is shown for a fiber with silver introduced by ion exchange.

Keywords:

luminescence, molecular clusters, photo-thermo-refractory glasses

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