参数
| 掺杂浓度 | Ho:0.3~0.4at% Cr:0.3~1.2at% Tm:5~6at% |
| 波前失真 | <λ/4@632nm |
| 消光比 | ≥25 dB |
| 尺寸 | 直径:3~6mm,长度:50~120mm |
| 尺寸公差 | 直径:+0.00/-0.05mm, 长度: ± 0.5mm |
| 精密研磨 | 50-80微英寸(RMS) |
| 平行性 | ≤30″ |
| 垂直性 | ≤5′ |
| 平整度 | λ/10@ 633 nm |
| 表面质量 | 10/5 Scratch / Digper MIL-O-1380A |
| 倒角 | 0.006″±0.002″ at 45°± 5° |
| 高透膜反射率 | ≤ 0.25% (@2094nm) |
| 结构 | 立方 |
| 晶格常数 | 12.01Å |
| 熔点 | 1970°C |
| 密度 | 4.56g/cm3 |
| 取向 | <111> or <100]> 晶体内部5° |
| 热膨胀 | 7.8×10-6 /K |
| 导热系数 | 14W/m/K, 20°C；10.5W/m/K, 100°C |
| 莫氏硬度 | 8.5 |
| 介电常数 | 11.7 |
| 激光跃迁 | 5I7 → 5I8 |
| 激光波长 | 2.094 µm |
| 光子能量 | 9.55 x 10–20 J |
| 放射截面 | 7 x 10-21 cm2 |
| 荧光寿命 | 8.5 ms |
| 折射率 | 1.80 @2.08 µm |
| 孔径 | >90% |
| 吸收线宽 | 4 nm |
| 二极管泵浦带 | 781 nm |
| 主泵浦带 | 400~800 nm |
特点
应用
参考文献
新闻
特点
- 较宽的吸收带
- 在室温下工作
- 激光波长为2.1mm
- 高斜率效率
- 可以用闪光灯或二极管泵浦
应用
医疗运用
- 2100nm激光
- 激光医学
- 军事
- 激光雷达
参考文献
| [1] Tonelli M , Falconieri M , Lanzi A , et al. Comparison of Tm-sensitized Ho:Yag and Ho:YLF crystals for a laser-pumped 2 μm CW oscillator[J]. Optics Communications, 1996, 129(1-2):62-68. |
| [2] Kaczmarek S M , ?Endzian W , ?Ukasiewicz T , et al. Effects of gamma irradiation and annealing treatments on the performance of Cr;Tm;Ho:YAG lasers[J]. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 1998, 54(13):2109-2116. |
| [3] Cheng L , Shen D , Jie S , et al. Flash-lamp pumped normal-mode and Q-switched Cr–Tm:YAG laser performance at room temperature[J]. Optics Communications, 1999, 164(1-3):63-67. |
| [4] M, Falconieri, and, et al. Fluorescence dynamics in an optically-excited Tm,Ho:YAG crystal[J]. Optical Materials, 1997. |
| [5] Zhang H , Sun D , Luo J , et al. Growth and spectroscopic properties of the 2.9μm Tm,Ho:LuYAG laser crystals[J]. Optical Materials, 2015, 47:490-494. |
| [6] Dou R , Zhang Q , Liu W , et al. Growth, structure, chemical etching, and spectroscopic properties of a 2.9 μm Tm,Ho:GdYTaO4 laser crystal[J]. Optical Materials, 2015, 48:80-85. |
| [7] Yang X T , Mu Y L , Zhao N B . Ho:SSO solid-state saturable-absorber Q switch for pulsed Ho:YAG laser resonantly pumped by a Tm:YLF laser[J]. Optics & Laser Technology, 2018, 107:398-401. |
| [8] R Müller, Fuhrberg P , Teichmann H O , et al. Pulsed and cw Cr,Tm:YAG laser with simultaneous diode and flashlamp excitation[J]. Optics & Laser Technology, 2005, 37(7):570-576. |
| [9] Liu, C, Zhao, et al. Stable kilo-hertz electro-optically Q-switched Tm,Ho:YAP laser at room temperature.[J]. Optics & Laser Technology, 2016. |
| [10] Lancaster D G , Dawes J M . Thermal-lens measurement of a quasi steady-state repetitively flashlamp-pumped Cr, Tm, Ho:YAG laser[J]. Optics & Laser Technology, 1998, 30(2):103-108. |
| [11] Saiki T , Motokoshi S , Imasaki K , et al. Two-pass amplification of CW laser by Nd/Cr:YAG ceramic Active mirror under lamp light pumping[J]. Optics Communications, 2009, 282(5):936-939. |
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