Grown, NIR spectrum and concentration effect of Yb:PbF2 crystals

IF 3.4 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-09-26 DOI:10.1016/j.infrared.2025.106168

Juncheng Tan , Hongxu Jin , Peixiong Zhang , Zhen Li , Zhenqiang Chen

引用次数: 0

Abstract

A series of PbF₂ crystals doped with different concentrations of Yb were successfully grown by the crucible descent method, and the effects of Yb doping concentration on structural properties and NIR spectral parameters were studied. The absorption spectrum, fluorescence spectrum and fluorescence decay curve were tested at room temperature, and the absorption cross section, emission cross section and fluorescence lifetime were calculated. Through comprehensive analysis, the sample doped with 8 %Yb exhibits a longer fluorescence lifetime (970 μs) at ∼1012 nm, a wider FWHM (78 nm), and an optimal emission cross-section (0.58 × 10⁻²⁰ cm²), making it the best doping concentration. Additionally, the gain cross-section and other laser performance parameters of the sample were calculated. The results indicate that Yb:PbF2 crystals are a very promising type of laser crystal.

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Yb:PbF2晶体生长、近红外光谱及浓度效应

采用坩埚下降法制备了一系列掺杂不同浓度Yb的PbF2晶体，研究了Yb掺杂浓度对PbF2晶体结构性能和近红外光谱参数的影响。在室温下测试了吸收光谱、荧光光谱和荧光衰减曲线，并计算了吸收截面、发射截面和荧光寿命。综合分析，掺8% Yb的样品在~ 1012 nm处具有较长的荧光寿命（970 μs）、较宽的FWHM （78 nm）和最佳的发射截面（0.58 × 10−20 cm2），是最佳掺杂浓度。此外，还计算了样品的增益截面和其他激光性能参数。结果表明，Yb:PbF2晶体是一种很有前途的激光晶体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.