Q factor of an open resonator is determined by the diffraction loss, reflection loss and external loss introduced by coupling as a whole.
开式谐振腔的Q值由衍射损耗，反射损耗，耦合引入的外部损耗共同决定。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
As their applications we have studied the effect of air index gradient on laser alignment and the additional diffraction loss of laser caused by inhomogeneous pump.
应用于空气折射率梯度对激光准直的影响和不均匀泵浦引起的激光器附加衍射损耗。
The diffraction loss, blackness correction and reflectance correction of the radiometer are given in this paper. The measurement result is 0 19% larger than the calculated result.
本文给出了辐射计的衍射损失，黑度修正及反射率修正，实际测量结果比计算结果大0.19%。
To study the influence of an island on radar based on coast, we utilize simple and realistic model to calculate diffraction loss over an island in the presence of rough sea surface.
为研究粗糙海面中的岛屿对雷达波传播的影响，本文采用比较简单而又符合实际的模型，计算了电波在粗糙海面条件下，岛屿对雷达波的衍射损耗。
The invariable loss comes from the materials and surface processing of the system itself, such as the loss of Fresnel, ball aberration, diffraction, chromatic aberration and absorb.
固定损耗是由系统自身所用材料、表面处理决定的，包括菲涅耳损耗、球差损耗、衍射损耗、色散损耗、吸收损耗等。
The nanowires were analyzed by X-ray diffraction, high resolution electron microscopy (HREM), electron energy loss spectroscopy.
应用X射线衍射仪、高分辨电子显微镜和电子能量损失谱分析了纳米线的微观结构。
The effect of pyrolytic temperature on the microstructure changes, mass loss and H/C ratio of polyarylacetylene was studied by thermal gravity analysis, element analysis and X ray diffraction.
根据热失重曲线、元素分析和X射线衍射分析了芳基乙炔聚合物炭化过程中的结构变化。
The effects of grating structure parameters and incidence wave parameter on diffraction efficiency are investigated . The loss of grating is also given.
文中讨论了光栅结构参数，入射波参数对衍射效率的影响以及金属光栅的损耗。
This phenomenon, known as diffraction, results in a loss of image clarity, Therefore, using very small aperture would lead to lose of quality.
这个现象，称为衍射。它影响影像的清晰程度。所以，用极细光圈摄影会使品质下降。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
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