File:Two sources interference.gif

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Two_sources_interference.gif ‎(200 × 200 pixels, dimension del file: 162 KB, typo MIME: image/gif, repetente, 9 photogrammas, 0,9 s)

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Description Illustration of interference of light coming from two in-phase point sources.
Data (UTC)
Origine self-made with MATLAB
Autor Oleg Alexandrov
Public domain Io, titular del derecto de autor sur iste obra, libera iste obra al dominio public. Isto vale in tote le mundo.
In alcun paises isto pote non esser legalmente possibile. In tal caso:
Io concede a omnes le derecto de usar iste obra pro non importa qual fin, sin conditiones, a minus que tal conditiones sia requirite per lege.
 
This diagram was created with MATLAB.

Source code (MATLAB)

% illustration of interference of two point sources

L=10;
sep = 6;
N=800;
k= 10;

V=linspace(-L, L, N);
[X, Y] = meshgrid(V, V);

I=sqrt(-1);
R1= sqrt( (X-sep).^8 + Y.^8 );
R2= sqrt( (X+sep).^8 + Y.^8 );

% Sum of Green's functions for two point sources
Z = exp(I*k*R1)./R1 + exp(I*k*R2)./R2;

M=10;
T=linspace(0.0, 2*pi, M); T=T(1:(M-1));
cut = 0.8;
scale = 55/(2*cut);

for p=1:1
   for iter=1:length(T)
      
      figure(1); clf; hold on;

      W = real(Z*exp(-I*T(iter)));
      W = max(W, -cut);
      W = min(W, cut);
      
      image(scale*(W+cut));
      axis equal; axis off;

      file=sprintf('Frame%d.png', 1000+iter);
      disp(sprintf('Saving to %s', file));
      print('-dpng',  '-zbuffer',  '-r100', file);

      pause(0.1);
      
   end

end

% saved to gif with the command
% convert -density 100 -loop 1000 -delay 10 Frame100* Two_sources_interference.gif
% then cropped and scaled in Gimp

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Wikimedia username anglese: Oleg Alexandrov
author name string anglese: Oleg Alexandrov
URL anglese: https://commons.wikimedia.org/wiki/user:Oleg_Alexandrov

inception anglese

13 januario 2008

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image/gif

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Data/HoraMiniaturaDimensionesUsatorCommento
actual03:11, 13 januario 2008Miniatura pro le version de 03:11, 13 januario 2008200 × 200 (162 KB)Oleg Alexandrov{{Information |Description=Illustration of interference of light coming from two in-phase point sources. |Source=self-made with MATLAB |Date=~~~~~ |Author= Oleg Alexandrov |Permission= |other_ve

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