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- Gain characteristics of EDWA(Er-Doped Waveguide Amplifiers) in phosphate glass substrate have been investigated by solving numerically propagation equations and rate equations. 本文首先介绍了光波导的简明理论,阐述了掺铒玻璃波导的放大理论。
- rate equations and propagation equations 速率方程和功率传输方程
- The Runge-Kutta interative algorithm is used to solve the standard propagation equations of fiber Raman amplifiers (FRAs). 提出了一种直接用龙格-库塔迭代算法全面求解光纤拉曼放大器传输方程的方法。
- In the high rowth-rate region the rate propagation of fatigue cracks isgoverned by the striation growth mechanism as ell as by the dimple mechanism. 在高速率区;裂纹扩展速率行为是由疲劳条纹生长机制和韧窝机制所控制.
- By using the Fourier series expansion, approximate analytical propagation equations of laser beams through a paraxial optical ABCD system with different apertures are derived. 用傅立叶级数展开法研究光束通过有光阑限制的近轴ABCD光学系统的传输特性,导出了光阑透射率函数不同时的传输公式。
- Abstract： By using the Fourier series expansion, approximate analytical propagation equations of laser beams through a paraxial optical ABCD system with different apertures are derived. 摘 要： 用傅立叶级数展开法研究光束通过有光阑限制的近轴ABCD光学系统的传输特性，导出了光阑透射率函数不同时的传输公式。
- The propagation of intense femtosecond laser pulses(50 fs,10? 16 w/cm?2) in Ar gas and middle-size Ar clusters is modelled by solving 3D propagation equation numerically. 通过数值求解三维电场传播方程;理论模拟了飞秒强激光脉冲(50fs;1016w/cm2)在氩气和中等尺寸氩团簇中的传播效应.
- At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
- Based on the beam propagation equation in free-space, the hyperbolic-fit mothed is used to calculate the M2-factor of Gaussian beams passing through a spherically aberrated lens. 根据自由空间束宽的传输方程，采用双曲线拟合的方法，计算了高斯光束通过球差透镜后的M2因子。
- In the alternating-direction implicit method (ADIM) and the generalized Douglas(GD)scheme, the time-domain beam propagation equation is discretized with a truncation error two orders lower than that of conventional finite-difference scheme. 采用交替隐式法(ADIM)和综合道格拉斯(GD)法,离散化时域束传输方程,获得比普通差分格式低二阶的误差。
- The solution of propagation equation of femtosecond laser pulsewith duration of several optical oscillation periods is presented without consideration of group velocity dispersion. 给出了具有几个光振荡周期长的飞秒激光脉冲在不考虑群速色散的情况下传输方程的解。
- To analyze the properties of bright screening spatial soliton in photorefractive crystals under DC field, the propagation equation is gotten and calculated with split-step Furier method. 摘要建立了光折变晶体在外加直流电场作用下的光传输理论模型，运用分步傅里叶方法对传输方程进行了数值分析。
- What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少？
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- Research on a fast method for fiber Raman amplifier propagation equations 光纤拉曼放大器传输方程快速计算方法的研究
- They charge a fixed rate for each transaction. 他们对办理的每项业务收取一定的费用。
- The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
- Not all reactions have such simple rate equations. 并非所有反应都具有这种简单的速度方程式。
- At that rate, he ought to be punished. 如果那样，他应该受到惩罚。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
