Videos 3.0 & 3.1
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Video feedback/usage
How many times did you watch each video?
Did you take notes?
Video comments (reshoot, slow down, etc):
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Concept development
In the videos, we discuss a wave "elastically" interacting with matter. What does that really mean?
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Consider a diffraction experiment with source, sample and detector.
If I move the source along a circular path around the sample, which terms (e.g R, k, r, k', R', T, delta k) change in magnitude and/or direction? Let the sample be fixed.
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Let's go back to the plane wave:
Plane waves
In the above expression, which term is the wave vector and what units does it have?
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Plane waves
For a fixed k, w and t and r & r' (not R') orthogonal to k: What is the value of the amplitude difference U(r)-U(r')?
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Plane wave mood
At this point, plane waves and wave vectors
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