Optical characterization of Tm3+ in a high barium-tellurite glass in absence and presence of Yb3+: Evidence of strong crystal-field effect and efficient Yb3+→Tm3+ energy transfer
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- 作者：S. Bose ; R. Debnath ; drdebnathr@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Tm3+ doped and (Tm3+/Yb3+) co-doped (high Ba2+)-tellurite glasses ; Strong crystal field effect ; Superior optical properties of Tm3+ ; Efficient phonon assisted Yb3+ to Tm3+ energy transfer
- 刊名：Journal of Luminescence
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：169
- 期：part_PB
- 页码：782-787
- 全文大小：1340 K
文摘
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Optical properties of Tm3+ ion are studied in a (high Ba)-tellurite glass.
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The glass shows strong absorption and intense IR-emission properties.
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Judd–Ofelt data suggest – the Tm3+ ion in this glass experiences strong crystal field.
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Yb3+-co-doped glass shows strong 804 nm upconversion emission from its Tm3+ ion under 980 nm laser excitation.
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Optical data show prospect of use of the glasses as IR laser medium and as bio-marker.