研究目的
Investigating the growth, structure, and spectroscopic properties of an Yb3+, Ho3+ co-doped LuYAG single crystal for 2.91 μm laser applications.
研究成果
The Yb,Ho:LuYAG crystal exhibits strong absorption bands in NIR range, matching well with the emission wavelength of commercial high-power InGaAs LD. The crystal is a promising gain material for 2.91 μm laser applications.
研究不足
The study focuses on the spectroscopic properties and potential laser applications of the Yb,Ho:LuYAG crystal, but does not explore the actual laser performance or efficiency in detail.
1：Experimental Design and Method Selection:
The Yb,Ho:LuYAG single crystal was grown by the Czochralski method. The dopant concentrations of the Yb3+, Ho3+, and Y3+ ions are 20 at%, 1 at%, and 15 at%, respectively.
2：Sample Selection and Data Sources:
Yb2O3 (4N5), Ho2O3 (5 N), Y2O3 (5 N), Lu2O3 (4N5), and Al2O3 (5 N) powders were used as the initial materials.
3：List of Experimental Equipment and Materials:
A JGD-60 furnace (CETC 26th, China) was used for crystal growth.
4：Experimental Procedures and Operational Workflow:
The crystal was grown with a rotation speed of 5–8 rpm and a pulling rate of 1–2 mm/h under argon atmosphere.
5：Data Analysis Methods:
The crystal structure was determined by X-ray powder diffraction (XRD) with a Philips X’Pert PRO X-ray diffractometer. The absorption spectrum was measured by a PerkinElmer Lambda-950 UV/VIS/NIR spectrophotometer.
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