研究目的
Investigating the effects of thermal drive induced grains regrowth (TDIGR) treatment on the optical properties of Nd3+,Gd3+-codoped SrF2 laser ceramic fabricated by single-crystal ceramization (SCC) technique.
研究成果
The combination of SCC and TDIGR effectively addresses the re-clustering of Nd3+ ions in Nd3+,Gd3+-codoped SrF2 laser ceramics, improving their optical properties to levels close to those of precursor single crystals without significantly affecting transmittance. This approach is promising for the development of high optical quality Nd3+,B3+-codoped MF2 ceramics.
研究不足
The study acknowledges that very small amounts of Nd3+ re-clusters still exist inside the ceramic after TDIGR, although their effect on the optical properties is negligible. The process parameters for TDIGR may need optimization for different materials or doping concentrations.
1：Experimental Design and Method Selection:
The study involved the fabrication of Nd3+,Gd3+-codoped SrF2 laser ceramic using the SCC technique followed by TDIGR treatment to address the re-clustering of Nd3+ ions.
2：Sample Selection and Data Sources:
High purity SrF2, GdF3, and NdF3 were used to fabricate the single crystal, which was then processed into a cuboid for deep plastic deformation treatment.
3：List of Experimental Equipment and Materials:
A vacuum furnace for deep plastic deformation, a spectrophotometer for absorption and transmission spectra, and a spectrofluorophotometer for emission spectrum and fluorescence lifetime measurements.
4：Experimental Procedures and Operational Workflow:
The single crystal underwent deep plastic deformation, rapid cooling, and hot-pressing sintering to form the ceramic, which was then subjected to TDIGR treatment.
5：Data Analysis Methods:
The optical properties before and after TDIGR treatment were compared to assess the effectiveness of the treatment.
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