晶格畸变驱动的yb掺杂GdxY0.97-xAlO3的光谱扩展:实现近红外激光波段的宽带发射

IF 6.3 2区 材料科学 Q2 CHEMISTRY, PHYSICAL
Ke Lin, Lin Li, Chen Lin, Peixiong Zhang, Zhen Li, Zhenqiang Chen
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引用次数: 0

摘要

采用激光加热支架生长(LHPG)方法,成功生长出高质量的Yb: GdxY0.97-xAlO3 (x=0,0.03,0.06,0.09,0.12,0.15,0.18)单晶。利用第一性原理计算阐明了结构演化与发光性质之间的关系。据我们所知,这项研究是第一次将第一性原理计算与该晶体系统的发光特性(FWHM,质心波长位移和发射强度)相结合的综合研究。系统分析表明,在x=0.06时,Yb: GYAP具有较好的发射特性:高发射截面(1.160 × 10-20cm2 @1006.1 nm)和宽发射带宽(40.912 nm @1006.1 nm)。这些发现表明Yb: GYAP晶体具有宽光谱带宽和高发射效率的优点,是1 μm超快激光器的有前途的增益介质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lattice Distortion-Driven Spectral Expansion in Yb-Doped GdxY0.97-xAlO3: Enabling Broadband Emission across Near-Infrared Laser Bands
High-quality Yb: GdxY0.97-xAlO3 (x=0,0.03,0.06,0.09,0.12,0.15,0.18) single crystal were successfully grown using the laser-heated pedestal growth (LHPG) method. First-principles calculations were employed to elucidate the correlation between structural evolution and luminescence properties. To the best of our knowledge, this study represents the first comprehensive investigation combining first-principles calculations with luminescence characteristics (FWHM, centroid wavelength shift, and emission intensity) for this crystal system. Our systematic analysis reveals that optimal structural modulation occurs at x=0.06, where Yb: GYAP demonstrates superior emission characteristics: a high emission cross-section (1.160 × 10-20cm2 @1006.1 nm) and broad emission bandwidth (40.912 nm @1006.1 nm). These findings establish Yb: GYAP crystals as promising gain media for 1 μm ultrafast lasers, combining both wide spectral bandwidth and high emission efficiency.
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来源期刊
Journal of Alloys and Compounds
Journal of Alloys and Compounds 工程技术-材料科学:综合
CiteScore
11.10
自引率
14.50%
发文量
5146
审稿时长
67 days
期刊介绍: The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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