Consider Fraunhofer diffraction of coherent light (e.g., a laser beam) from a double slit. Use Matlab...

Consider Fraunhofer diffraction of coherent light (e.g., a laser beam) from a double slit.

Use Matlab (or some other program) to calculate and plot the diffraction pattern you would expect from two slits, each 0.230 mm wide, with a center-to-center separation of 0.853 mm, on a screen that is 62.3 cm downstream of the slit, when illuminated by a helium-neon laser (??=633 nm). Turn in a printout of your plot – which should have properly labeled axes, etc., of course!

Solutions

Expert Solution

The two phase difference parameters are,

So, the intensity distribution of Fraunhofer diffraction,

Plotting this we get,

X represents theta and Y represents intensity.

the blue line is contribution of the interference alone and the red line is when we include difraction with it too. A is taken 1 when plotting the curve, so the maximum intensity is 4.

genius_generous answered 1 year ago

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