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- The nonlinear graded index fiber lens is analysed Analyticexpressions for computing the focal length and beam waist radius ofthis lens are derived from the stationary self-focusing theory and theABCD law of Gaussian optical beam propagation. 本文对非线性变折射率纤维透镜进行了分析,利用高斯光束在非线性变折射率纤维中传播的稳态自聚焦理论以及在线性介质中传播的ABCD定律,导出了计算这种透镜的焦距及束腰半径的解析表达式。
- when the beam waist radius is very small, they have a great difference and the theory of the second intensity moment of non-paraxial scalar beam must be used. 束腰半径较小时，傍轴理论计算的结果有较大误差，必须采用精确光强定义下的非傍轴光束质量因子的定义作修正。
- When the radius of the beam waist is twice bigger than that of the pupil, the image quality is almost invariant. 当束腰半径2倍于光瞳半径以上时，成像质量几乎不受高斯光束的影响。
- The design of the gun is commonly defined by perveance, beam current, waist radius, waist position and cathode current density. 它的设计主要有导流系数、流、腰半径、腰位置以及阴极电流密度。
- The effect of spherical aberration on the radius of image beam waist in the design of laser optical system is discussed in detail, and the expression is presented. 摘要文章主要针对激光光学系统设计中存在的球差对高斯光束像方束腰半径的影响进行了详细的讨论，并给出了具体关系。
- Simultaneously, the influence of Gauss/Super-Gauss beam's waist radius, phase error and order number upon diffractive field was discussed. 分析了高斯、超高斯光束的束腰半径、位相误差和阶数对衍射场的影响。
- Radius variation of image beam waist due to spherical aberration which varies with the position of objective beam waist and optical system focus is analysed by the form of curve. 同时以曲线的形式分析了当物方束腰的位置和光学系统焦距变化时，由球差引起的像方束腰半径变化量也随之改变。
- As the waist radius of the fundamental wave increases, the effect of the walk-off slowly reduces and the effect of detuning angle increases. 随著束腰半径的增加，离散效应的影响逐渐减小，失谐角对三次谐波转换的影响逐渐增加。
- Finally, a design example of optical system used for smog attenuation testing system is given to illustrate the effect of spherical aberration on the image beam waist. 最后通过激光羽烟衰减测试系统中聚光光学系统的设计实例说明了球差对高斯光束像方束腰的影响。
- The stability condition and the beam waist position for a resonator a re described by the fractional order. 其稳定条件和束腰位置可用分数阶次描述，分数阶次可为复数。
- A laser beam is incident on the aspheric side of a tested lens through a beam waist conversion lens and the beam reflected by the aspheric surface is received by CCD camera. 激光管发出的光束经束腰变换透镜入射到被测透镜的非球面表面，由CCD摄像头接收非球面的反射激光光斑，CCD的光敏面位于反射激光光束的束腰位置；
- The Ponderomotive potential of this kind of laser in the radial looks like an annular valley with intensity peak in 0.707 , where is the beam waist of laser. TEM(1;0)+TEM(0;1)模激光场对应的有质动力势径向分布呈环状山谷型，其峰值位于0.;707 处，其中 为激光光束的腰宽。
- Based on matrix optics theory and ABCD law the beam waist conjugateimaging formulas for Gaussian beam transformation through a conical defocusinggradient index(GRIN) fiber lens are derived. 本文根据矩阵光学理论和ABCD定律,导出了高斯光束经锥形发散梯度折射率纤维透镜变换的束腰共轭成像公式在。
- The variation equation describing distance dependence of the beam waist of a fundamental Gaussian beam with high intensity propagating in logarithmically saturable nonlinear media has been deduced. 导出了在对数饱和非线性介质中传播的强激光基模高斯光束宽度随传播距离变化的方程。
- Beam waist width and waist location of the complex-argument cosh-Gaussian beams[J]. 引用该论文 王喜庆;王莉;孔瑞霞;王庆峰;吕百达.
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- The doll pivots at the waist and neck. 那洋娃娃的腰和颈可以转动。
- She wears a ribbon belt round her waist. 她在腰部束了一条缎带。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- She wore a wide belt round her waist. 她束了一条宽腰带。
