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Nonradiative transition dynamics in alexandriteThe first direct picosecond time-resolved measurement of the nonradiative transition dynamics between the excited 4T2 pump band and the metastable 2E storage level of the trivalent chromium ion in alexandrite is reported. The nonradiative relaxation times of 17 ps for intra-4T2 vibrational transitions, and 27 ps for 4T2-2E electronic transition are obtained. The thermal repopulation rate of the 4T2 state from the metastable 2E level is of the order 3.5 x 10 to the 9th per s.
Document ID
19870026618
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1063/1.97135
Authors
Gayen, S. K. (City Coll. of the City Univ. of New York NY, United States)
Wang, W. B. (City Coll. of the City Univ. of New York NY, United States)
Petricevic, V. (City Coll. of the City Univ. of New York NY, United States)
Alfano, R. R. (City College New York, United States)
Date Acquired
August 13, 2013
Publication Date
August 25, 1986
Publication Information
Publication: Applied Physics Letters
Volume: 49
ISSN: 0003-6951
Subject Category
Lasers And Masers
Report/Patent Number
AD-A176541
Accession Number
87A13892
Distribution Limits
Public
Copyright
Other

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