We are using an incoming laser at 532nm so the shifts are actually quite small.
The slit is only being used to define our probe volume to eliminate unwanted light. Also I know that the Gaussian is only being used as an approximate function for the "smearing" across wavelengths that is being...
A text I am reading noted that as a multichromatic light source (consisting of many individual peaks) is passed through the my slit (order .25mm) the peaks will be spread over the neighboring wavelengths in a roughly Gaussian distribution. I am trying to understand why this is, and how I would...
in
E = E_0exp i(k dot r - wt) or E = cos(k dot r - wt)
what does k dot r physically represent? Can r be any position in space or must it lie on the wave?
(I physically understand what a dot product is)