Kirchoff's Laws of Spectroscopy

Visual representation of Kirchhoff's laws

Another visual representation of Kirchhoff's laws

  • Every element has a finger print
    • They interact with light in their own way
  • Either in absorption or emission, finger print or spectral lines are in the same place
  1. A luminous solid, liquid, or dense gas emits light of all wavelengths
  2. A low density, hot gas seen against a cooler background emits an emission spectrum
    • Looks all black, except for light being emitted
  3. A low density, cool gas in front of a hotter source of a continuous spectrum creates an absorption spectrum

Spectroscopy Physics