Nd：YAP的化学式为 Nd3+: YAlO3，结构畸变钙钛矿，属于斜六方晶系，空间群为Pbnm，a，b，c轴相互垂直，属于负单轴晶体。并且是各向异性的。在众多掺钕激光晶体中，Nd：YAP晶体不仅具有高导热性，而且在4F3/2–4 I13/2跃迁处具有较大的激发发射截面。它们是目前已知的最有效的激光晶体之一，以1300nm的高功率工作，该晶体主要由LD泵浦。1300nm激光器广泛用于医学，光纤通信和军事领域。此外，水分子在此激光波段具有良好的吸收能力。这使其具有很好的止血能力，并广泛用于止血、神经外科手术、病理组织切除和除皱等激光治疗。另外，Nd：YAP晶体具有自然的双折射特性，对于克服激光的热去极化和非线性频率转换非常有益。
参数
| 材料 | Nd: YAP |
| 取向 | <5° |
| 平行性 | ≤10″ |
| 垂直性 | ≤5′ |
| 表面质量 | 10-5 (MIL-O-13830A) |
| 波前失真 | λ/8 @ 633nm |
| 表面平整度 | ≤ λ/10 @632.8nm |
| 通光孔径 | >95 % |
| 长度公差 | +0.5/-0mm |
| 厚度/直径公差 | ±0.05 mm |
| 损坏阈值 | ≥500MW/cm2 |
| 晶体结构 | 斜方晶– Pbnm |
| 晶格常数 | a=5,176, b=5,307, c=7,355 |
| 密度 | 5,35 g/cm3 |
| 熔点 | 1870°C |
| 导热系数 | 0,11 W/(cm K) |
| 热光学系数（dn / dT） | na:9.7×10-6 K-1 nc:14.5×10-6 K-1 |
| 热膨胀/（10-6•K-1 @ 25°C） | 9.5 (a 轴), 4.3(b轴), 10.8(c轴) |
| 硬度（莫氏） | 8.5 |
| 剪切模量/ Gpa | 2.2×1012 dyn/cm2 |
| 比热 | 400 J/(kg K) |
| 线性色散δn/δT[10-6K-1] | 9.7 (na) |
| 激光跃迁 | 4F3/2→4I9/2 930 nm 4F3/2→4I11/2 1079 nm |
| 4F3/2→4I13/2 1340 nm 4F3/2→4I13/2 1432 nm | |
| 激光波长 | 930nm 1079nm 1340nm |
| 荧光寿命 | 170ms |
| 折射率@ 1064 nm | na=1,929, nb=1,943, nc=1,952 |
| 波长 (nm) | 发射截面10-19cm2 | ||
| a-cut | b-cut | c-cut | |
| 1079 | 2.05 | 1.76 | 1.38 |
| 1340 | 1.13 | 0.97 | 0.78 |
| 1432 | 0.34 | ||
特点
应用
参考文献
新闻
特点
- 高导热率
- 受激发射截面大
- 高激光增益
- 低激光阈值
- 各向异性
应用
参考文献
| [1] Huang C H , Zhang G , Wei Y , et al. 1.3414 μm Nd:YAP pulse laser in Q-switched mode[J]. Optics Communications, 2006, 260(1):248-250. |
| [2] Yong W , Zhang G , Huang C H , et al. A single wavelength 1339 nm Nd:YAP pulsed laser[J]. Optics Communications, 2009, 282(22):4397-4400. |
| [3] Rocca J P , Fornaini C , Brulat N , et al. CO2 and Nd:YAP laser interaction with lithium disilicate and Zirconia dental ceramics: A preliminary study[J]. Optics & Laser Technology, 2014, 57:216-223. |
| [4] Chen X , Yu Y , Tao G , et al. High-power Continuous-wave Diode-side-pumped Nd:YAP/LBO 670.7nm Red Laser[J]. Optik, 2016, 127(3):1094-1096. |
| [5] Zhu H , Huang C , Ge Z , et al. High-power CW diode-side-pumped 1341nm Nd:YAP laser[J]. Optics Communications, 2007, 270(2):296-300. |
| [6] Yong W , Ge Z , Huang C , et al. High power Nd:YAG lasers operating at 1.3μm wave band[J]. Infrared Physics & Technology, 2008, 51(2):91-94. |
| [7] Bonnet L , Boulesteix R , Matre A , et al. Influence of (Nd+Y)/Al ratio on sintering behavior and optical features of Y3-xNdxAl5O12 ceramics for laser applications[J]. Optical Materials, 2018, 77:264-272. |
| [8] Wang X , Wang S , Rhee H , et al. LD end pumped mode locked and cavity dumped Nd:YAP laser at 1.34 μm[J]. Optics Communications, 2011, 284(12):3014-3017. |
| [9] Wang S , Rhee H , Wang X , et al. LD end pumped, actively mode locked and passively Q-switched Nd:YAP laser at 1341 nm[J]. Optics Communications, 2010, 283(4):570-573. |
| [10] Li X , Pan Q , Jing J , et al. LD pumped intracavity frequency-doubled and frequency-stabilized Nd:YAP/KTP laser with 1.1 W output at 540 nm[J]. Optics Communications, 2002, 201(1-3):165-171. |
| [11] Guy O , Kubecek V , Barthelemy A . Mode-locked diode-pumped Nd:YAP laser[J]. Optics Communications, 1996, 130(1-3):41-43. |
| [12] Boucher M , Musset O , Boquillon J P , et al. Multiwatt CW diode end-pumped Nd:YAP laser at 1.08 and 1.34 μm: Influence of Nd doping level[J]. Optics Communications, 2002, 212(1-3):139-148. |
| [13] Shaolin, Xue, and, et al. Passive mode-locking of a Nd:YAP laser at 1.3414 μm by using a convex-antiresonant ring unstable resonator[J]. Optics Communications, 1996. |
| [14] Wang S , Wang X , Rhee H , et al. Pulsed Nd:YAP laser at 1432 nm pumped with high power laser diode[J]. Optics Communications, 2010, 283(14):2881-2884. |
新闻
相关产品
发表回复