1. Students are placed into small groups and use the “Waves and Optics Simulation” program to model a diatomic chain of many atoms.
  2. Each group will use the Fast Fourier Transform spectrum of the diatomic chain to find information on the normal modes, including frequency, wave vector, and wave length.
  3. Each group will be given several normal modes to investigate. At the end of the lab, the groups will bring their data together to graph the dispersion relation for the diatomic chain.

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