| 1. | Q switch nd yag laser
Yag激光美容仪 |
| 2. | In this paper , q switch nd : yag laser was used to polishing the diamond films
在理论分析的基础上，开展了激光切割和抛光金刚石膜的实验研究。 |
| 3. | A q switched nd : yag laser operating at 532nm was used in our experiment as thermal source
实验中采用波长为532nm脉宽为7ns的倍频q - yag激光器作为激发光源。 |
| 4. | Then the nonlinear reverse saturable absorption measurements of composite materials were performed with a frequency - doubled q switched nd : yag laser with 10ns laser pulse at 532nm
用波长为532nm的yag倍频调q脉冲激光以10ns的脉冲宽度测试复合材料的反饱和吸收的光限幅特性。 |
| 5. | With double - frequency technique and q switch technique the laser delivers a laser pulse of 532 - nm in wavelength , 5 - ns in pulse width , 35 - mj in energy and 2 - cm in coherent length
所用激光器为nd : yag脉冲激光器，采用了调q和二倍频技术，波长为0 . 532 、脉冲宽度为7ns 、相干长度为2cm ，能量为35mj 。 |
| 6. | The nonlinear reverse saturable absorption measurements of composite materials were performed with a frequency - doubled q switched nd : yag laser . appreciable effect of optical limiting was observed in the experiments
用yag倍频调q脉冲激光器测试了复合材料的非线性反饱和吸收性质，发现材料具有明显的光限幅效应。 |
| 7. | Then the nonlinear reverse saturable absorption measurements of composite materials were performed with a frequency - doubled q switched nd : yag laser with 8ns laser pulse at 532nm . the factors that affect the performance of reverse saturable absorption and optical limiting of the materials were discussed . a phenomenological model is used to describe optical limiting phenomena
用波长为532nm的yag倍频调q脉冲激光以8ns的脉冲速率测试复合材料的反饱和吸收的光限幅特性，讨论了各种因素对材料的三阶非线性光学性质及反饱和吸收光限幅特性的影响，并对它们的反饱和吸收的光限幅现象进行了理论拟合。 |
| 8. | Based on these foundations , we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基础上，给出了一整套bbo - opo激光参数设计方案：计算了不同泵浦强度下的参量放大倍数；详细计算了在nd : yag调q激光器各次谐波泵浦条件下的共线类和类相位匹配的调谐曲线，以及非共线类相位匹配调谐曲线；分析了走离角对非线性系数和群速匹配的影响；计算了参量过程的允许角；计算了bbo - opo的理论阈值条件；分析了饱和与泵浦光束的消耗过程；给出了转换效率与超过泵浦阈值的倍数的关系；讨论了转换效率与输出镜反射率的关系；讨论了线宽控制的各种方法；研究了利用非稳腔改善光束质量的方法；考虑了bbo晶体的设计。 |
| 9. | Besides this , the experimental result of ao - q switched is given , and then the experimental results of passive - q switched under existing conditions are given and analyzed . 6 . some technology schemes of disc laser to high power and high quality are summarized , and some typical experiment devices and results are analyzed
此外还给出了二极管泵浦内腔倍频一声光调q的实验结果，给出了在现有条件下内腔倍频一被动调q的初步实验结果，并对结果进行了分析; 6 .对圆盘固体激光器功率、能量定标放大的一些技术方案进行了总结，给出了一些典型的实验装置和结果，并进行了分析。 |
