Single and Dual Slit refraction

  • Thread starter PhysicsMan_2003
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  • #1
PhysicsMan_2003

Main Question or Discussion Point

Can someone give me the formulas for single a two slit defraction of light. And please explain what te variables mean.

Are these right? Wave length = xd/L

Wave length = yw/L
If these are right can someone please explain what the variable stand for because I am at a loss due to the fact that I have lost my notes
-thanks
 

Answers and Replies

  • #2
Claude Bile
Science Advisor
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Intensity profile for 2 slits:

I1(x) + I2(x) + 2*sqrt(I1(x)*I2(x))*cos(delta)

Where

I1(x) = Intensity due to 1st slit
I2(x) = Intensity due to 2nd slit
delta = 2*pi*d/lambda

Where

d = distance between slits
lambda = Wavelength

I1(x) and I2(x) are gaussians i.e in the form Ae^(-(x-b)^2/a^2)
where A, b and a are constants determined by source intensity, slit width etc.

I have no idea what the equations you mentioned mean.
 
  • #3
PhysicsMan_2003
Thanks

Thanks a lot for your reply you really helped alot.
 

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