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I Spectra Units cm^(-1)?

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  1. Apr 19, 2016 #1
    I am seeing units for atomic/molecular spectra listed as ##cm^{-1}##. Is this based on the wave number ##k## for ##\Psi=Asin(kx-\phi)##?

    Thanks,
    KQ6UP
     
  2. jcsd
  3. Apr 19, 2016 #2

    DrClaude

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    Staff: Mentor

    It is then inverse of the wavelength of the emitted/absorbed light. It is a leftover of the early days of spectroscopy, where this was something relatively easy to measure.
     
  4. Apr 20, 2016 #3
    Thanks
     
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