Measurement of excited‐state‐absorption loss for Ce3+in Y3Al5O12and implications for tunable 5d→4frare‐earth lasers
作者:
Ralph R. Jacobs,
William F. Krupke,
Marvin J. Weber,
期刊:
Applied Physics Letters
(AIP Available online 1978)
卷期:
Volume 33,
issue 5
页码: 410-412
ISSN:0003-6951
年代: 1978
DOI:10.1063/1.90395
出版商: AIP
数据来源: AIP
摘要:
Broad bandwidth 5d→4ftransitions in Ce3+have been considered for tunable laser action. In this letter, optical probe measurements of excited Ce3+ions in Y3Al5O12show that stimulated emission in the 550–610‐nm region is not possible at 295 K because of excited‐state absorption. Transient measurements demonstrate that part of this loss has ≈75‐ns lifetime and is associated with absorption from the lowest 5dlevel; a longer‐lifetime loss is also observed. The excited‐state‐absorption loss is reduced at lower temperatures.
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