Visualization

• Aside: The handedness of circular polarization is independent of the direction of propagation:
  • Why?
    • The handedness is defined by the spatial wave at a fixed instant.
      • Crossing the “back of the wave” to the “front of the wave” does not depend on the direction of travel!
    • But, my first definition did include the direction of the wave??
      • Suppose have

http://wug.physics.uiuc.edu/courses/phys112/fall97/acts/lect23/act23b/sld001.htm

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