评估将 Nd3+:Na4Y6F22 单晶作为二极管泵浦激光器活性介质的前景

IF 3.3 3区物理与天体物理 Q2 OPTICS Journal of Luminescence Pub Date : 2024-10-23 DOI:10.1016/j.jlumin.2024.120961

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引用次数: 0

摘要

系统研究了 Nd3+:Na4Y6F22 氟化物单晶的光学、光谱特性和激光性能。在 796 nm 二极管泵浦条件下，首次实现了 Nd3+:Na4Y6F22 无序晶体的准 CW 激光作用。斜率效率为 5.8%，吸收泵浦功率的激光阈值约为 19 mW。该研究阐明了在二极管泵浦条件下光谱动力学特性与纯激光效率之间存在差异的原因。

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Evaluating Nd3+:Na4Y6F22 single crystals as a promising active medium for diode-pumped lasers

The optical and spectroscopic properties and laser performances of Nd³⁺:Na₄Y₆F₂₂ fluoride single crystals were systematically examined. The quasi-CW laser action in Nd³⁺:Na₄Y₆F₂₂ disordered crystals was realized for the first time under 796 nm-diode pumping. The slope efficiency was 5.8 % with a lasing threshold approximately 19 mW in terms of absorbed pumping power. The reasons for the discrepancy between the promising spectral-kinetic characteristics and pure lasing efficiency under diode pumping were elucidated.

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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.