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第5講 cattering, Diffraction, and Radiation


L5_A
      Coherent interference
      Scattering
      Light scattering
      Spherical waves
      Colors due to scattering
      Sunset can be Green!
 
L5_B
      Scattering
      Check one direction at a time, far away
      The mathematics of scattering
      Scattered spherical waves → plane waves
      Phase delays
      Direction of coherent scattering
 
 
L5_CD
      Scattering
      Coherent constructive scattering
      Coherent destructive scattering: different angles
      Direction of coherent scattering
      Incoherent scattering: rough surface
      Diffraction
 
 
L5_E
      Grating Equation
 
L5_F
      Diffraction
      Incident angle vs. diffraction angle
      Diffraction-grating dispersion
      Diffraction orders
      Real diffraction gratings
      Any periodic surface is a diffraction grating
      World’s largest diffraction grating

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