| 1. | The energy levels and the spectrum of the yb ~ ( 3 + ) - doped crystals were introduced . theheoretical threshold of the different crystals was calculated
在介绍yb ~ ( 3 + )离子能级结构、光谱特性的基础上，计算了对应不同能级劈裂的晶体的理论阈值。 |
| 2. | As a result , yb - doped crystals languished in the shadow of nd : yag and other laser media for several decades waiting for high - power spectrally bright pump sources
上世纪90年代以来,随着ingaas大功率激光二极管的不断发展, yb : yag晶体具备适合ld泵浦的优点重新被人们认识。 |
| 3. | The rate equations of theb3 + doped crystal laser in cw operation were solved . we analyzed several factorshich influenced the laser output and obtained the optimum value by calculation
建立了掺yb ~ ( 3 + )晶体激光器的速率方程，对影响连续激光器输出功率的因素进行了分析，得到了各种优化值。 |
| 4. | Among these , some cr4 + - doped crystals have the character of polarized absorb , and can obtain the linear polarized output pulse laser without any polarizer . it ' s a very good character for intracavity frequency doubling
其中有的含cr离子晶体还具有偏振方向选择的吸收特性，不加任何偏振元件即可输出线偏振的脉冲激光，这对于腔内倍频是一个非常好的特性。 |
| 5. | The effect of ni + ion on luminescence had not been detected by fluorescence experiments for implanted doped crystals . 5 ) the xe ion peak concentration lies at a depth of about 47nm under the surface . after ion implantations , the two peaks in o1s spectrum merge into a single one
( 5 )注入的xe ~ +在距表面47nm处浓度取得最大值，离子注入使两种类型氧格点的化学环境变得相似， o _ ( 1s )谱的两个峰融合为一个峰。 |
| 6. | 5 ) optical rectification in a set of doped zn0 . 95cd0 . 05te < 110 > crystals show an increasing efficiency of thz beam generation with the increasing crystal resistivity , but the efficiency saturates and descended when the doped crystal resistivity goes beyond 106 o - m
Teq10单晶，当晶体的电阻率较大时…入0 ‘ q ， cmx晶体产生的thz辐射信号逐渐增大。当晶体的电阻率p 106qcm时，晶体产生thz辐射的效率达到饱和甚至可能下降。 |
| 7. | Weave the exact equations to calculate the absorption coefficient and the absorbed power ofhe thin uncoated crystal . detailed analysis of the mode - locking theory of femtosecond ser was discussed . the cw experiments of the three new yb ~ ( 3 + ) - doped crystals have been demonstrated , nd the laser parameters have been optimized
进行了yb : gdcob 、 yb : lso 、 yb : gso三种晶体连续运转的实验，并按照理论进行了晶体温度、长度、输出镜透过率、泵浦光和振荡光的模式和波长匹配这几个方面的参数优化。 |
| 8. | Particularly , cr4 + - doped crystals as passive q - switch ( saturable absorber ) have got extensive attention , such as cr4 + : yag ， cr4 + : gsgg ， cr4 + : mg2sio4 and cr4 + : yso , which have the advantages of wild absorption band , good saturable absorption , long restored time , good photo - chemical stability , no fading , good thermal conductivity and high damage threshold
特别是近年来，掺cr4 +离子的各种晶体如cr4 + : yag ， cr4 + : gsgg ， cr4 + : mg2sio4和cr4 + : yso等作为被动调q开关受到了广泛的关注。它们具有很宽的吸收带和良好的饱和吸收性质，恢复时间较长，光化学性质稳定，无退化现象，热导性好，损伤阈值高。 |
