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LinearBPM
这是一个简单的FFT为无电位1 +1 +1 Ð 薛定谔方程的光束传播方法。如果该软件灵活,允许引入的术语(如果是极少数需要包括色散效应高阶导数)。例如,如果一个人渴望解决的一个方程的形式:
(四/ dz的+ Ð ^ 2/dx ^ 2 - 0.25 * Ð ^ 3/dx ^ 3)== 0 Ÿ
它可以解决使用以下代码:
Ž = linspace(0,1,512)
x = linspace(-5,5,1024)
psi0 =进出口(- x的。^ 2)
Ð = D_lateral1D(十,2)-0.25 * D_lateral1D(十,3)
字段= LinearBPM(psi0,有D,Z)
凡D_lateral1D是一个函数,提供“取代”的微分算子。
这个函数是在一个非线性的BPM,我曾对(分步,谱方法等),将提交给我,当我完成他们的文件和组织功能更复杂的设置非常初期阶段。
(This is a simple FFT based beam propagation method for potential-free 1+1+1D Schrodinger equation. The software if flexible and allows to introduce high-order derivatives in the term (very handful if is needed to include dispersion effects). For example, if one desires to solve an equation in the form:
(d/dz+ d^2/dx^2- 0.25*d^3/dx^3)Y == 0
It can be solved using the following code:
z=linspace(0,1,512)
x=linspace(-5,5,1024)
psi0=exp(-x.^2)
D=D_lateral1D(x,2)-0.25*D_lateral1D(x,3)
field=LinearBPM(psi0,D,z)
Where D_lateral1D is a provided function that "replaces" the derivative operator.
This function is a very early stage in a more complex set of non-linear BPM functions that I have made (split-step, spectral methods, etc.) and I will submit them when I finish their documentation and organization.
Sorry for my English, I m eager for your comments.
)
- 2010-07-05 12:02:42下载
- 积分:1
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throughwall
这是使用射线跟踪法求解墙体造成误差的程序,分别有穿单面墙,平行双墙,垂直双墙的情况(This is to use ray-tracing procedure for solving the error caused by the wall, respectively, through a single wall, parallel to the double wall, vertical double-wall case)
- 2010-09-02 13:21:51下载
- 积分:1
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attachments
thanks for your good site
- 2009-12-27 00:21:38下载
- 积分:1
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48605723RGLS
GLS tool box. This gives the programs for generalized least square method
- 2010-12-27 16:10:03下载
- 积分:1
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MATLAB-of-complex-networks
该文档包括:基于复杂网络的MATLAB实现论文和对应的代码。(The documentation includes: paper and the corresponding code based on MATLAB complex networks.)
- 2014-10-16 08:48:50下载
- 积分:1
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Matlab2010
Matlab2010经典超强教程(清晰、免费版)(Matlab2010 classic super tutorial (clear, free version))
- 2013-10-10 11:48:08下载
- 积分:1
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Cst_TNB
to calculate cost of stand-alone system
- 2013-10-05 23:22:27下载
- 积分:1
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CWT_Morlet
自己编写的,使用morlet复指数小波,进行连续小波变换的程序。能帮助理解小波变换的算法。(I have written using complex exponential morlet wavelets, continuous wavelet transform performed procedures. To help understand the algorithm based on wavelet transform.)
- 2015-04-04 22:17:07下载
- 积分:1
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separate-ocean-and-land
利用matlab判斷影像矩陣,利用近紅外光圖使海洋與陸地區分並找出海岸線(Judgment using matlab image matrix, using near-infrared light diagram of the marine and terrestrial distinguish and identify the coastline)
- 2013-08-31 11:32:53下载
- 积分:1
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Distortion_Less_Data_Hiding_Embedding
Distortionless DAta hiding embedder
- 2013-04-10 04:27:28下载
- 积分:1