Photoionization processes in F aggregate centres of LiF crystal |
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Authors: | S V Godbole A G Page |
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Affiliation: | (1) Radiochemistry Division, Bhabha Atomic Research Centre, 400 085 Bombay, India |
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Abstract: | Extensive studies have been carried out on the optical conversion of F and F-aggregate colour centres produced in lithium fluoride single crystal on gamma irradiation. Using 308 nm XeCl laser it has been shown that significantly large population build-up of F 3 + centre and reduction in the population of undesirable F2 centres can be achieved in gamma irradiated crystal at room temperature due to multistep photoionization processes. These and other investigations have provided a scheme for possible laser action based on F 3 + colour centres in LiF crystal at room temperature. |
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Keywords: | Photoionization lithium fluoride F aggregate centres XeCl laser colour centre laser |
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