| 1. | The result shows , the coupling between the atom and the cavity mode can cause squeezing enhancement
结果表明，原子与腔之间的耦合能够导致压缩增强。 |
| 2. | In the far from cutoff approximation the energies of empty cavity modes versus radii of three - dimension semiconductor microcavity are evaluated
摘要半导体微腔中腔模和激子模藕合形成腔极化激元，三维微腔中由于横向限定腔模和激子模形成离散化的本征模式。 |
| 3. | It is indicated that the cavity modes blueshift with decreased radius , and on decreasing radii there is obvious anticross between the three polaritons resulted from interaction between cavity modes and its corresponding exciton modes
结果表明随著微腔半径的减小腔模能量蓝移，腔模与相应的重空穴激子模、轻空穴激子模藕合形成的腔极化激元的三支随著微腔半径的减小存在明显的反交叉行为。 |
| 4. | In the photoluminescence ( pl ) spectra , a new emission band due to the exciton - exciton collision process ( p band ) is observed under low excitation intensity at room temperature . and some fine structures origination from the cavity modes of the fabry - p rot etalon could also be seen clearly
在单根zno微柱（直径有25 m ）的p带发光峰上还可以观察到明显的f - p腔模式分布，通过计算得到其腔长为21 m ，同微米柱的尺寸相当。 |
| 5. | The trends of dpssl are pointed out , the wide application fields , as well as the bright market future of high power dpssl are also summarized . in the chapter 2 , all kinds of solid - state laser gain materials are introduced in detail . in the chapter 3 , the theory on the mode - matching of the pump beam and the cavity mode is analyzed in detail based on the basic theory and work principle of ld - pumped all - solid - state laser
本论文第一章从二极管泵浦固体激光器的优势出发，介绍了二极管泵浦固体激光器的发展，指出了dpssl的发展方向，概括介绍了大功率dpssl的诸多应用领域和广阔的市场前景；第二章对固体激光增益材料作了详细的介绍；第三章基于ld泵浦固体激光器的基本理论和工作原理，从理论上详细分析了ld端面泵浦激光器中泵浦光与腔模的匹配问题。 |
| 6. | The optical characteristics of metal silver film used as the reflective mirror of microcavity are calculated by characteristic matrix method and it is shown that the thickness of metal mirror affects not only the reflectivity but also the penetration depth and thus the cavity mode . this conclusion is confirmed by experiment
通过特征矩阵法计算了金属薄膜在光学微腔中的性质，得到了金属膜厚度不仅影响腔的品质因子，而且随金属膜厚度增加，由反射相移引起的等效穿透深度增加的结果，并在实验上进行了验证。 |
| 7. | But the absorption efficiency , stokes efficiency , quantum efficiency and the superposition efficiency between pump mode and cavity mode is less than one respectively , so the local heat absorption of the crystal is quite strong , and its thermal effect is quite obvious . two measures were taken
但是，由于量子效率小于1 ，斯托克斯频移，泵浦光与基模的非完美空间重叠以及激光晶体的偏振吸收等因素积聚在晶体内的热量随泵浦辐射而变化，出现更为复杂和明显的热透镜效应。 |
| 8. | Based on the rate - equation theory of four - level system , the expressions of threshold pump power , output power and slope efficiency are given . the influence of space distribution of pump light ( the position of focusing point , dimension of pumping light and divergence angle ) to the output characteristics are also discussed . then , by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode , we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers
其中，在泵浦光的空间分布变量中我们分别考虑了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介质中的位置以及泵浦光在介质中发散角的影响；然后我们研究了在高泵浦功率下激光晶体因吸收泵浦光而产生的热效应所导致的热透镜效应以及热致衍射损耗，通过分析它们对振荡激光腔模尺寸的影响，得到了高功率半导体激光二极管端面泵浦固体激光器模式匹配的要求，为高功率连续单频nd ： yvo _ 4激光器的优化设计提供了理论依据。 |
