Yb，Er:LaF3单晶在1.5 ~ 1.6 μm激光器中的光谱特性

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-07-12 DOI:10.1016/j.jlumin.2025.121414

Li Shi , Guangzhu Chen , Shanming Li , Chengchun Zhao , Yin Hang

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引用次数: 0

摘要

据我们所知，首次生长并报道了Yb3+和Er3+共掺杂的LaF3单晶。研究了其结构和光谱性质，并进行了Judd-Ofelt （J-O）计算。计算出975 nm处的吸收截面为0.20 × 10−20 cm2。计算Ω2、Ω4和Ω6分别为0.54 × 10−20 cm2、0.34 × 10−20 cm2和0.49 × 10−20 cm2，以此计算Er3+:4I13/2的荧光寿命。并对所测得的荧光光谱性质进行了研究。研究了Yb3+与Er3+之间的能量传递机理。

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Spectroscopic properties of Yb,Er:LaF3 single crystal for 1.5–1.6 μm laser

A Yb³⁺ and Er³⁺ co-doped LaF₃ single crystal was grown and reported for the first time, to the best of our knowledge. The structure and spectral properties were investigated, and Judd-Ofelt (J-O) calculations were performed. The absorption cross-section at 975 nm was calculated to be 0.20 × 10⁻²⁰ cm². Ω₂, Ω₄, and Ω₆ were calculated to be 0.54 × 10⁻²⁰ cm², 0.34 × 10⁻²⁰ cm², and 0.49 × 10⁻²⁰ cm², with which the fluorescence lifetime of Er³⁺:⁴I_13/2 was calculated. The measured fluorescence spectral properties were investigated as well. The energy transfer mechanism between Yb³⁺ and Er³⁺ was studied.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.