Er:YAP具有3μm的大发射截面,是Er:YAG的三倍大。 高掺杂的Er:YAP可以发射2.73µm 波长的激光,低掺杂的Er:YAP晶体可以发射1.66µm 的激光。Er:YAP晶体的发射光谱和激发光谱显示出在人眼安全区域内有较宽的发射带,其峰值在1545nm和1608nm附近,并且泵浦带适用于常见的800nm和970nm二极管激光器,这表明YAP是一种 1.5μm人眼安全范围内的二极管泵浦激光器的候选晶体。
与YAG相比,钇钙钛矿铝(YAP)由于具有较高的导热率(~13.3 W m-1 K-1),良好的机械性能和较低的光子能量,有望成为有效激光发射的基质材料。 而且,Er:YAP是最有前途的激光材料之一,可以提供高功率的中红外相干光束。
参数
化学公式 | Er:YAlO3 |
晶体结构 | 斜方晶体-Pbnm |
分子质量 | 163.884 |
外形 | 半透明结晶固体 |
方向 | b轴-Pbnm |
熔点 | 1870 °C |
密度 | 5.35 g/cm3 |
比热容 | 0.557 J/g·K |
导热系数 | 11.7 W/m·K (a-axis), 10.0 W/m·K (b-axis), 13.3 W/m·K (c-axis) |
热膨胀系数 | 2.32 x 10-6 K-1 (a-axis), 8.08 x 10-6 K-1 (b-axis), 8.7 x 10-6 K-1 (c-axis) |
精确质量 | 163.872 g/mol |
单同位素质量 | 163.872 g/mol |
激光跃迁 | 4S3/2→4I9/2 | 4I11/2→4I13/2 |
激光波长 | 1.66 µm | 2.73 µm |
泵浦带 | 0.6-0.8 µm | 1.53 µm |
发射截面 | 3 μm | |
折射率 | 1.94-1.97 (@ 632.8 nm) |
案例
特点
应用
参考文献
新闻
案例
Er:YAP 晶体用于2790-3000nm激光器
规格:2*5*8 mm/10*10*3 mm;
镀膜:AR/AR@960- 980 nm&2700-3000 nm,R<1.5%;
Er:YAP晶体案例(二)
规格:2×5×8 mm;
两孔径: 平, 光学级抛光, 不镀膜
特点
- 更高的热导率
- 较低的光子能量
- 良好的机械性能
- 丰富的能级结构
- 高掺杂浓度
应用
- 护眼玻璃
- 大功率红外相干光束
参考文献
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