Laser performance and spectroscopic properties of Nd3+-doped LiKYF5 and LiKGdF5 crystals

    Authors

    J. F. H. Nicholls; X. X. Zhang; M. Bass; B. H. T. Chai;B. Henderson

    Comments

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    Abbreviated Journal Title

    Opt. Commun.

    Keywords

    Optics

    Abstract

    Spectroscopic and laser-pumped laser studies of Nd3+-doped LiKYF5 and LiKGdF5 are reported. The optical absorption and photoluminescence spectra art strongly polarised. the sense of polarisation of the I-4(9/2) -- > F-2(5/2), H-2(9/2) absorption near 800 nm being opposite to that of the F-4(3/2) -- > I-4(11/2) laser emission near 1.05 mu m. At ambient temperature (similar to 300 K) the luminescence decay times of excited Nd3+ ions are in both hosts of order 480-490 mu s, and strongly concentration dependent above 2 at.% Nd3+. Efficient laser action (similar to 25%) is observed under excitation with a long pulse Cr3+:LiSAF laser tuned to 797 nm, with low threshold energies of ca. 125 mu J.

    Journal Title

    Optics Communications

    Volume

    137

    Issue/Number

    4-6

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    281

    Last Page

    284

    WOS Identifier

    WOS:A1997WV94400015

    ISSN

    0030-4018

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