How to draw multiple surface plots on the same mesh?

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Muhamed Sewidan
Muhamed Sewidan el 9 de Oct. de 2020
Comentada: Muhamed Sewidan el 14 de Oct. de 2020
I use this code to draw a Gaussian normal distribution. I want to plot several distributions at equal distance from the original one (like the figure).
How can I do so?
lambda = 1; % wavelength
E0 = 1; % max value of E-field amplitude
% ==================================================================
% prepare the coordinates mesh
% ----------------------------
zLin = linspace(-201,201,400) * lambda; % z-coordinate (horizontal)
rLin = linspace(-65,65,100) * lambda; % radius-coordinate (vertical)
[z,r] = meshgrid(zLin,rLin); % create mesh
% ===================================================================
wFactor = 4;
w0 = wFactor * lambda; % minimal waist
zR = pi* w0^2 / lambda; % Rayleigh length
w = w0 * sqrt( 1 + (z / zR) .^2 ); % Beam radius at any arbitrary distance (equ. 3)
% Irradiance
eta = 377; % for free space
I0 = abs(E0)^2/eta;
I = I0 .* (w0 ./ w).^2 .* exp( -2*(r./w).^2 );
surf(z,r,I); shading interp
  1 comentario
VBBV
VBBV el 9 de Oct. de 2020
Editada: VBBV el 9 de Oct. de 2020
Use contourf function as
%if true
% code
% end
v2 = 0:0.00009:0.0025;
contourf(z,r,I,v2,'edgecolor','none');shading interp;

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Durganshu
Durganshu el 9 de Oct. de 2020
Editada: Durganshu el 9 de Oct. de 2020
Did you try hold on?
figure;
surf(z1,r1,I1);
hold on
zlin2= linspace(-101,101,300) * lambda; %whatever shifted values you want
rLin2 = linspace(-65,65,100) * lambda; %whatever shifted values you want
[z2,r2] = meshgrid(zLin2,rLin2);
% similarly define I2 and then plot
surf(z2,r2,I2);
  9 comentarios
Durganshu
Durganshu el 14 de Oct. de 2020
Editada: Durganshu el 14 de Oct. de 2020
Yes, that should work. Did you try it? All you're supposed to do is tweaking the I2 function in order to find the appropriate fit.
Muhamed Sewidan
Muhamed Sewidan el 14 de Oct. de 2020
Thank you I will try it out.

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