偶氮拉尔斯基和微拉下生长的 Yb3+:YScO3 混合倍半氧化物的生长、表征和高效激光操作

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Express Pub Date : 2024-01-09 DOI:10.1364/ome.513925

Sascha Kalusniak, Anastasia Uvarova, Ines Arlt, Lena Hülshoff, Patty Eckhof, Philipp Wegener, Mario Brützam, Steffen Ganschow, Christo Guguschev, Hiroki Tanaka, and Christian Kränkel

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引用次数: 0

摘要

我们报告了掺杂 Yb3+ 的混合倍半氧化物晶体的生长、光谱学和激光操作。我们采用 Czochralski 法和微拉下 (µ-PD) 法成功地生长出了各种掺杂 Yb3+ 的晶体，其成分接近 (Y0.5Sc0.5)2O3。我们的光谱研究发现，混合晶体的结构紊乱导致受激发射和吸收截面光谱变宽。我们发现在 Y:Sc 比率为 54:46 和 46:54 之间，峰值波长移动了 ∼ 1.6 nm，并证实了峰值位置与主成分晶格常数的线性关系。在激光实验中，我们在波长为 975 nm 的光泵浦半导体激光器（OPSL）的泵浦下获得了高效的连续波激光运行，在波长为 1037 nm 和 1086 nm 的激光波段，斜率效率高达 89%，光对光效率超过 80%。

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Growth, characterization, and efficient laser operation of Czochralski- and micro-pulling-down-grown Yb3+:YScO3 mixed sesquioxides

We report on the growth, spectroscopy and laser operation of Yb³⁺-doped mixed sesquioxide crystals. Various Yb³⁺-doped crystals with compositions close to (Y_0.5Sc_0.5)₂O₃ have been successfully grown by the Czochralski method and by the micro-pulling down (µ-PD) method. Our spectroscopic investigations reveal broadened stimulated emission and absorption cross-section spectra originating from the structural disorder of the mixed crystals. We find the peak wavelengths to shift by ∼1.6 nm between Y:Sc-ratios of 54:46 and 46:54 and confirm a linear relation of the peak position with the lattice constant of the host composition. In the laser experiments, we obtain highly efficient continuous-wave laser operation under pumping with an optically-pumped semiconductor laser (OPSL) at ∼975 nm, reaching slope efficiencies of up to 89% at optical-to-optical efficiencies exceeding 80% at laser wavelengths between 1037 nm and 1086 nm.

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.