Influence of the γ-Radiation on the Generation Characteristics of the YAlO3:Nd Crystals |
| D.Yu. Sugaka, A.O. Matkovskiia,d, V.V. Grabovskiib, V.I. Prokhorenkob, A. Suchockie, A.M. Durygina,e, I.M. Solskiia and A.P. Shakhovc aScientific Research Company "Carat", 202, Stryjska St., Lviv, 290031, Ukraine bInstitute of Semiconductor Physics, 46, Prospect Nauki, Kiev, Ukraine cInstitute of Physics, 144, Prospect Nauki, Kiev, Ukraine dInstitute of Physics HPS, Rejtana 16A, 35-310 Rzeszów, Poland eInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland |
| Received: October 14, 1997; in final form December 18, 1997 |
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| The results of investigation of the influence of γ-radiation by 60Co-source on the YAlO3: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. |
| DOI: 10.12693/APhysPolA.93.643 PACS numbers: 42.70.Hj, 61.72.Ji |