| 1. | A model for modulated crossed - beam thermal lens spectrometry 横向双光束调制热透镜理论模型 |
| 2. | The dependence of the surface thermal lens amplitude on the experimental parameters is analyzed 3 .建立了表面热透镜实验测量系统。 |
| 3. | Thermal lens spectrometry is a photothermal technique developed in 1980s 激光热透镜光谱法是20世纪80年代发展起来的一种光热光谱分析技术。 |
| 4. | Study of sol - ton tramsmission and coupling in heat - lens effect of photorefactive crystal 光折变晶体热透镜效应中光孤子传输与耦合特性的研究 |
| 5. | Thermal lens spectrometry is a photothermal technique developed in 1980s 摘要激光热透镜光谱法是20世纪80年代发展起来的一种光热光谱分析技术。 |
| 6. | At present , photothermal deflection technology and surface thermal lensing technology are widely applied in weak absorption measurement 目前,广泛使用的测量弱吸收的方法有光热偏转技术和表面热透镜技术。 |
| 7. | Due to the special structure design and the utilizing of the low thermal expansion materials , the folded resonator of the unit is stable both mechanically and thermally 通过特殊的结构设计,使其具有机械和热稳定性。对输出窗口的热透镜效应进行了理论分析,并对其进行了部分补偿。 |
| 8. | If a nd : yag laser runs at high pump power , laser resonator will generate multimode beam due to thermal lens of active rod . the higher pump power is , the bigger divergence occurs and the smaller rayleigh range is 当nd : yag激光器工作在高泵浦功率下时,由于nd : yag激光器工作物质的热透镜效应导致了谐振腔输出多模激光,随着泵浦功率的升高激光光束发散角增大,焦深减小。 |
| 9. | In the third chapter , the thermal lens effect of laser crystal is studied . the model of thermal lens theory and some measuring methods are explored . these methods are generalized and classified and the advantages and disadvantages of which are pointed out 第三章分析了激光晶体的热透镜效应,研究了热透镜理论模型和各种测量方法,对这些方法总结、归类并指出了各自的优缺点。 |
| 10. | The optimum position of focal spot of pumping laser through coupling system is calculated . in the fifth chapter , the optical characteristics of nd : yvo4 and lbo are studied . the astigmatism problem of resonant cavity is explored thoroughly under the condition of thermal lens effect 第五章分析了nd : yvo _ 4和lbo晶体的光学特性,深入分析了在引入热透镜效应的情况下谐振腔的像散问题,设计了四镜z型折叠腔,应用abcd定律计算优化选择了一组腔参数。 |