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1 Acta Physica Polonica A

1 1998

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Influence of the γ-Radiation on the Generation Characteristics of the YAlO_{3}:Nd Crystals

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Sugak D. , Matkovskii A. , Grabovskii V. , Prokhorenko V. , Suchocki A. , Durygin A. , Solskii I. , Shakhov A.

Acta Physica Polonica A

1998

tom 93

nr 4

643-648

The results of investigation of the influence of γ-radiation by ^{60}Co-source on the YAlO_{3}:Nd laser generation characteristics are presented in this paper. The significant decrease in the output energy after γ-irradiation was obtained. The energetic characteristics are restored after illumination of the γ-irradiated laser rods by 1000-10000 pulses of the pumping lamp light. The additional absorption spectrum is induced by γ-irradiation in the crystals. The nature of the created in this way colour centres is discussed. The mechanism of influence of the colour centres on generation properties of the crystals is discussed.