How to create grating diffraction pattern.
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How to create a code to plot the intensity of the light I see from the grating diffraction in theory.
The graph shows only the diffraction ranking at zero. I want the graph to show the first number diffraction.
Who can see if it might go wrong? Please help me.
x = linspace(-50, 50, 500);
A = 4*W;
lambda = 632.8e-9; % m
D = 1; % Distance to the observation plane m
W = 38e-6; % slit width(m)
fx = x/(lambda*D); % frequency coordinat
I = (A^2/(lambda^2*D^2)) .* sinc(2*W*fx).^2;
figure
plot(x, I)
grid
xlabel('fx')
ylabel('Intensity')
댓글 수: 1
Star Strider
2020년 3월 2일
@Rose Mermate —
You quoted the code I posted in your other Question: How to create a code to plot the intensity of the light
That should do everything you want.
What part of my Answer do you need help to understand?
채택된 답변
KALYAN ACHARJYA
2020년 3월 2일
편집: KALYAN ACHARJYA
2020년 3월 2일
x = linspace(-50, 50, 500);
lambda = 632.8e-9; % m
D = 1; % Distance to the observation plane m
W = 38e-6;
A = 4*W;% slit width(m)
fx = x/(lambda*D); % frequency coordinat
I = (A^2/(lambda^2*D^2)) .* sinc(2*W*fx).^2;
figure, plot(x,I)
grid
xlabel('fx')
ylabel('Intensity');
% Just repeat the same row multiple times
% For Better visualisation
grad_pattern=repelem(I,[50],[1]);
figure,imshow(grad_pattern,[]);
title('Diffraction Pattern');
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