From 6.161 and 6.637 Collaboration Page

Revision as of 01:49, 8 October 2006

Advice

• For the diffraction problems that need ploting, be absolutely sure that you can see plot/curve details. In other words, if your plot is a single bright spot amidst a field of black... you need to fix your plot. All plots that need ploting in this problem set give nice continuous curves.

• If you need help with Matlab or Mathematica, let me know. Send me your code, and I should be able to help. -- Dave

Problem 4.6

There was some confusion on this problem. Hopefully this helps:

The gratting is not infinite. It is a finite size amplitude transmission gratting.

Pitch, for this problem, is defined as number of slits/unit length.

   Incident Light:          |   |   |
                            V   V   V
Amplitude Grating:   - - - - - - - - - - -

 Diffracted Light:          /    |   \
                           v     V    v

Gratings of different pitch:

--  --  --  --  --  --  -- (N=6)

---   ---   ---   ---   --- (N=4)

----    ----    ----    ---- (N=3)

etc...