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- Longitudinal Field Energy and Scalar Paraxial Approximation[J]. 引用该论文 陈惠龙;曹清;范滇元.
- Gaussian beam method is based on the dynamic raytracing and paraxial approximation method. 高斯束方法是在动力学射线追踪和旁轴近似方法基础上发展而来的。
- Also, the orbital angular momentum operator on paraxial approximation is introduced by quantum theory. 第三章研究了复杂像散椭圆光束的轨道角动量。
- Theoretical Study on the Pumping Efficiency of Coupling System Described by Paraxial Approximation[J]. 引用该论文 李传东;鄢雨;胡文涛;周复正;张正泉;徐至展.
- Abstract: The propagation of ultrashort pulsed Bessel beams in free space within and beyond the paraxial approximation is studied. 摘要： 对超短脉冲贝塞尔光束在近轴近似和非近轴情况下自由空间中的传输作了研究。
- In this paper, it is analyzed the propagation of a Gaussian beam in fiber media with ray tracing under the paraxial approximation. 利用光线追踪方法在近轴近似下模拟了高斯光束在不同折射率分布纤维状介质中的传播。
- It is shown that the propagation of charged-particle beam can be made in complete analogy with the transmission of ellipse-Gaussian light beam in paraxial approximation. 摘要傍轴近似下带电粒子束传输可完全类比于近轴光线椭圆高斯光束的传输。
- Based on the classical theory of electromagnetism, the relation and the difference between OAM and the parameter of the beam in paraxial approximation are analyzed. 从经典电磁场理论出发，主要介绍了傍轴近似条件下，光束的轨道角动量和光束的参数之间的关系。
- The method is easily realized with small computation amount, and its absorption effect is better than conventional paraxial approximation absorption boundary condition. 该方法简单易行，计算量小，而吸收效果比常规旁轴近似吸收边界条件更好。
- It is well known that the paraxial approximation is no longer valid for the beams with large divergence angle and/or small spot size comparable with the wavelength. 当光束具有较大的发散角或光束束腰可与波长相比拟时,傍轴近似不再成立。
- Without making the paraxial approximation, a detailed study on the propagation of ultrashort pulsed Bessel beams in linear normal and anomalous dispersive media has been performed using the method of Fourier transform. 未作近轴近似的条件下，用傅立叶积分变换法详细研究了超短脉冲贝塞尔光束在正、负色散介质中的传输特性。 脉冲光束的空间形状在传
- It is well known that paraxial approximation and even scalar approximation are no longer valid for the beams with large divergence angles and small spot size comparable with the wavelength. 当光束具有较大的发散角或光束束腰可与波长相比拟时,傍轴近似,甚至标量衍射理论都不再成立。
- At paraxial approximation the maximum of the matching function is increasing with increased divergence angle.For different brightness of pumping light, the optimum value of the angle is obtained. 发现在旁轴近似下，匹配函数的最大值随泵浦光发散角的增大而增大，在考虑到像散的影响后，得到泵浦光发散角的参考值。
- Three-dimensional paraxial approximate equation with optimized coefficientscan be obtained by using conjugate gradient method under least square premise. 本文在最小二乘意义下用共轭梯度方法导出优化系数的三维傍轴近似方程。
- In this paper, on the base of paraxial approximations, we present a set of absorbing boundary conditions of 3D elastic wave equations and apply to the 3D elastic wave numerical modeling in isotropic medium. 本文傍轴近似法提出了计算三维弹性波方程的吸收边界条件公式，表示了各边界面、边棱和角点处波场所满足的单程波方程，并在三维弹性波数值模拟中进行了应用。
- Continuous paraxial approximation formula and its multiple discrete forms 连续傍轴近似公式及其多种离散形式
- Propagation of partially coherent modified Bessel - Gaussian beams beyond the paraxial approximation 非傍轴部分相干修正贝塞尔-高斯光束的传输
- Propagation of vectorial off-axis Gaussian beams beyond the paraxial approximation 矢量非傍轴离轴高斯光束的传输
- paraxial approximation 近轴近似法
- What he said was an approximation of my idea. 他说的是很接近我的想法。
