Title

Ho3+ To Yb3+ Back Transfer And Thermal Quenching Of Up-Conversion Green Emission In Fluoride-Crystals

Authors

Authors

X. X. Zhang; P. Hong; M. Bass;B. H. T. Chai

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

Physics, Applied

Abstract

Energy transfer from Ho3+ to Yb3+ has been demonstrated in fluoride crystals such as KYF4, BaY2F8, and LiYF4. This transfer was found to occur above a certain temperature and its efficiency increases with temperature. It accounts for the thermal quenching of green emission from upconverted Ho3+ and partly explains the failure, to date, to obtain room temperature, Yb3+ sensitized Ho3+ upconversion lasers in these three hosts. Low Yb3+ concentration is suggested for future attempts to achieve room temperature Yb3+, Ho3+ upconversion green laser operation of these crystals.

Journal Title

Applied Physics Letters

Volume

63

Issue/Number

19

Publication Date

1-1-1993

Document Type

Article

Language

English

First Page

2606

Last Page

2608

WOS Identifier

WOS:A1993MF86000006

ISSN

0003-6951

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