掺钕钒酸钇(Nd:YVO4)晶体是一种性能优良的激光基质晶体，适于制作激光二极管（LD）泵浦的全固态激光器。该晶体具有以下特点,具有低激光阈值，高斜率效率，大的受激发射截面，在很宽的波长范围对泵浦光有很大的吸收，而调单模，有高抗光伤能力。最新进展表明 Nd:YVO4晶体和KTP晶体的组合可以用以制作高功率稳定的红外、绿光或红光激光器。低激光阈值和高斜率效率大的受激发射截面在泵浦波段有很强的吸收属于单轴晶 ，能够输出偏正光   主要特性原子密度:1.26x1020atoms/cm3(Nd 1.0%)晶体结构:四方晶系, space group D4h-I4/amda=b=7.1193, c=6.2892密度:4.22g/cm3硬度（mols）:4-5 (Glass-like)热膨胀系数 (300K):aa=4.43x10-6/Kac=11.37x10-6/K热导系数 (300K)://C: 0.0523W/cm/K^C: 0.0510W/cm/K光学特性激光波长:1064nm, 1342nm,914nm热光系数(300K):dno/dT=8.5x 10-6/Kdne/dT=2.9x 10-6/KSellmeier方程  (for pure YVO4crystals):no2=3.77834+0.069736/(l2-0.04724)-0.0108133.l2ne2=4.59905+0.110534/(l2-0.04813)-0.0122676.l2受激发射截面:25x10-19cm2@1064nm荧光寿命:90ms吸收系数:31.4cm-1@810nm本征损耗:0.02cm-1@1064nm增益带宽:0.96nm @1064nm偏振光发射:ppolarization; parallel to optic axis(c-axis)LD泵浦光光转换效率:>60%激光特性Nd:YVO4晶体在1064 nm和1342nm 有大受激发射截面。在的1064 nma切Nd:YVO4晶体受激发射截面是Nd: YAG晶体的约4倍。虽然Nd:YVO4的上能级寿命要比Nd:YAG 少2.7 倍，对合适的激光腔设计来说，由于它的泵浦量子效率高，它的倾斜效率还是很高的。Table 1. Laser Properties of Nd:YVO4Laser crystalDoping(atm%)s(x10-19cm2)a (cm-1)t (ms)la(mm)Pth(mW)ηs(%)Nd:YVO4(a-cut)1.02.0252531.272.490500.320.1430785248.6Nd:YVO4(c-cut)1.179.290 23145.5Nd:YAG0.8567.12301.4111538.6注：受激发射截面(σ), 吸收系数(α) 荧光寿命(τ), 吸收长度(La), 阈值功率(Pth),泵浦量子效率(η)Diode pumped Nd:YVO4laser output comparing with diode pumped Nd:YAG laser.CrystalsSize (mm3)Pump PowerOutput (at 1064nm)Nd:YVO43x3x1850mW350mWNd:YVO43x3x515W6WNd:YAG3x3x2850mW34mW技术参数掺杂0.1 - 3.0 atm%波前畸变<l/8 at 633 nm散射点可见, He-Ne激光检测定向精度±0.5deg.尺寸公差±0.1mm表面质量10/5 Scratch/Dig per MIL-O-13830B面形l/10 at 633 nm通光孔径> Central 90%平面度< 10 arc sec.本征损耗< 0.1% cm-1@1064 nm常规产品Part No.DopingDimensionCoatingNYV23012%3x3x1mmHR/AR CoatingNYV23022%3x3x1mmAR/AR CoatingNYV13011%3x3x1mmHR/AR CoatingNYV13051%3x3x5mmAR/AR CoatingNYV53100.5%3x3x10mmAR/AR CoatingNYV74080.27%4x4x8mmAR/AR CoatingAR/AR: S1:AR@1064(R<0.1%)&532nm(R<0.5%)HT@808nm(R<5%); S2:AR@1064&532nmHR/AR: S1:HR@1064(R>99.8%)&532nm(R>99%)HT@808nm(R<5%); S2:AR@1064&532nm