| 1. | Absorption measurements of ambient methane with tunable diode laser
利用激光吸收光谱法测量煤矿瓦斯气体的研究 |
| 2. | 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。 |
| 3. | Optical absorption measurements show that mnxcd1 - xin2te4 is a direct energy gap semiconductor and the band gap shifts towards the high energy side with the increase of x
采用光吸收法测得mn人d n 。 te 。晶体属于直接带隙半导体，其能隙eg随着组分互的增加线性增大。 |
| 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. | 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。 |
| 6. | Tem analysis demonstrates that the film quality is indeed improved as manifested by smoother ? - fesi2 / si interface , more homogeneous film thickness , finer grains , and higher thermal stability . further analysis by photon absorption measurements reveals that the bandgap value egd is not significantly altered . therefore , carbon dosage is favorable for obtaining high - quality ? - fesi2 films
经透射电镜分析可知引入碳离子后硅化物层的微结构向有利于薄膜质量的方向的发展，晶粒得到细化， - fesi _ 2层稳定性提高，因此从微结构角度考虑，引入c离子对于提高- fesi _ 2薄膜的质量是很有益处的。 |
| 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。 |
