Yb:YLF晶体学名掺镱氟化钇锂,比Yb:YAG晶体具有宽广的发射光谱,这对产生超短脉冲或超短脉冲放大非常重要。Yb:YLF晶体中氟化钇锂作为基质材料具有*高的热导率,热透镜效率*小,并且可以获得*高的Yb掺杂浓度。掺Yb的激光材料在所有的激光材料中具有***高的量子效率(>90%)。
Yb:YLF晶体,Yb:YLF,掺镱氟化钇锂技术参数:
Crystal structure:Tetragonal
Point group:I41/a
Lattice parameters:а = 5,164 Å, c = 10,741 Å
Thermal expansion:4×10-6 / ºC
Thermal conductivity:4,3–6 W/mK
Density:3,95 g/cm³
Mohs' hardness:5
Melting temperature:825 ºC
Transmission range:0.2-5 μm
Refractive indices (λ=1.06 μm):no = 1,448, ne = 1,470
dno/dT:-2,0×10-6 / ºK
dne/dT:-4,1×10-6 / ºK
Fluorescence lifetime:2.1 ms
Emission cross section:7.5x10-21 cm² @1017nm, E//c
Emission bandwidth:60nm
Absorption cross section:10.6x10-21 cm² @959 nm, E//c
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