参数
透明范围 | 350-4500 nm |
晶体结构 | 斜方晶 |
密度 | 3.01 g/cm3 |
莫氏硬度 | 5 |
吸收系数 | a < 1%/cm @1064 nm and 532 nm |
折光率 | nx=1.7377, ny=1.7453, nz=1.8297 @ 1064 nm |
nx=1.7780, ny=1.7886, nz=1.8887 @ 532 nm | |
Sellmeier方程(λ,μm) | nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2 |
ny2=3.0333+0.04154/(λ2-0.04547)-0.01408λ2 | |
nz2=3.3134+0.05694/(λ2-0.05658)-0.01682λ2 | |
导热系数 | 13 W/m/K |
热光系数(/℃) | dnx/dT=1.1*10-5 |
dny/dT=1.3*10-5 | |
dnz/dT=1.6*10-5 |
电光系数 | 低频(pm/V) | 高频(pm/V) |
r13 | 9.5 | 8.8 |
r23 | 15.7 | 13.8 |
r33 | 36.3 | 35 |
r51 | 7.3 | 6.9 |
r42 | 9.3 | 8.8 |
相位匹配范围 | 980-3400 nm | |
平面度 | 小于 λ/8 @ 633 nm | |
波前畸变 | 小于λ/ 8 @ 633 nm | |
传输面平行度 | 小于20” | |
电导率 | 3.5*10-8 s/cm (c-axis,22℃,1KHz) |
介电常数 | εeff=13 |
晶胞参数 | a=6.404 Å, b=10.616 Å, c=12.814 Å, z=8.00 Å |
熔点 | 1172 ℃ |
居里温度 | 936 ℃ |
比热容 | 0.1643 cal/g℃ |
角度接受度SHG 1064 nm(mrad/cm) | 14.2 (Φ) 55.3 (θ) |
通光孔径 | Centre 90% |
倒角 | ≤0.2 mm@45° |
边缘破损 | ≤0.1 mm |
表面光洁度 | 5-Oct |
侧面垂直度 | ≤5′ |
角度公差 | △θ≤0.25°, △ф≤0.25° |
激光损坏的阈值:[GW / cm] | >0.5 for 1064 nm, TEM00, 10 ns, 10 HZ (AR-coated) |
>0.3 for 532 nm, TEM00, 10 ns, 10 HZ (AR-coated) |
案例
特点
应用
参考文献
新闻
案例
特点
- 透明范围广
- 稳定的机械和化学性能
- 低电导率
- 高损伤阈值
- 不容易潮解
- 高温稳定性
- 大电光系数
- 低半波电压
- 容易长成大晶体
应用
532nm激光
医学应用:532 nm KTP激光治疗寻常性痤疮的疗效评估
532 nm KTP激光器是通过使用磷酸钾钛氧化物(KTiOPO4)将Nd:YAG激光辐射倍频而产生的。该波长适合于浅表血管和色素性病变的治疗,并且可用于寻常痤疮和酒渣鼻的治疗。对于寻常痤疮,细菌卟啉的光活化,皮脂生成的减少以及对皮脂腺的附带损害是其作用方式的拟议机制。
532nm KTP激光治疗寻常痤疮疗效评价
医学应用:磷酸钛氧钛(KTP)激光在梨状窝血管瘤的切除中的应用
在激光器中,KTP-532激光器具有多个优点,使其非常适合于切除血管瘤。磷酸磷酸钛氧钾(KTP)激光器的波长在可见光范围内(532 nm)。它不需要瞄准光束,可以通过光纤传输。它也优先被血红蛋白吸收,因此对血管损伤有效。KTP-532激光辅助切除是一种微创方法,具有出血量最少的优势。KTP-532激光具有明显的优势,因为它在切口的任一侧都产生了一个凝结区,并且在切割时似乎可以密封伤口边缘。这是一种快速,耐受良好的微创手术。用这种方法可以避免外部切口和疤痕。这是一种简单,安全,有效的手术治疗方法,在将来具有很大的潜力。
磷酸钛氧钛钾(KTP)激光在梨状窝血管瘤的切除中的应用
1μmNd激光器的辐射
调制器和Q开关:KTiOPO4(KTP)是一种相对较新的材料,被广泛用于将Nd激光器的1μm辐射倍频。
它的高非线性光学d系数,高光学损伤阈值,宽接受角和热稳定的相位匹配特性使其可用于此目的,其大的电光r系数和低介电常数使其对于各种电光应用(例如调制器)具有吸引力和Q开关。
磷酸钛酸钾(KTP):性能,最新进展和新应用
参考文献
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