利用水热法制备了新型氟化镧掺钕（LaF3Nd）纳米材料，其结构为六方晶型，纳米尺寸在25 nm左右；利用超声波分散技术，制备成了一系列具有不同稀土分散浓度的纳米分散液。其钕离子浓度可达到1×1020 cm-3。可见近红外透射光谱表明，对于5 mm光程的纳米分散液，其在1053 nm处的透射率大于85%，与掺钕透明陶瓷的透射率相当。荧光寿命测试结果显示，该稀土纳米材料（La0.95Nd0.05F3）在分散液中的寿命值为200 μs，与粉末相比，降低了3.8%，表明这种低荧光猝灭率、高离子浓度、高透射率的纳米分散液将是一种可用于高重复率、高功率、超短脉冲的流体激光工作物质。

A new type of neodymium-doped lanthanum fluoride (LaF3Nd) nanoparticles are synthesized by hydrothermal method. It exhibits hexagonal structure and a size of about 25 nm. A series of different concentrations of LaF3Nd nanoparticles dispersion are prepared by ultrasonic technology. The visible-near-infrared spectra show that the dispersion with the optical path of 5 mm and neodymium ion concentration of 1×1020 cm-3 shows high transmittance of 85% at 1053 nm. The lifetime of the La0.95Nd0.05F3 nanoparticles dispersion is 200 μs, compared with that of the powder, it is reduced by 3.8%. These results indicate that the LaF3Nd nanoparticles dispersion with low fluorescence quenching rate, high ion concentration and high transmittance is a kind of promising material used for high repetition rate, high-power and ultra short pulse liquid laser.