Thank you for your reply (and sorry it's taken me so long to respond.) I wasn't able to connect your reply to my question, unfortunately. But...
I have been thinking about this on an off for a while though, but the answer is actually fairly simple: Bragg scattering is the geometric optics...
Overview of thread:
1. Quick derivation of bragg scattering
2. Discussion of modern xray experiments as they relate to bragg/fraunhofer
3. Summary of points.
Bragg/von Lau Scattering:
(I will be following Ashcroft if you want to sing along, pg 98-99)
Imagine you have light incident on some...