Astrophysics (index)

Brackett Series

(hydrogen lines for electrons settling from n > 4 to n = 4)

The Brackett Series is Hydrogen (H) Spectral Lines from n greater than 4 to n = 4. Named after Frederick Sumner Brackett. (As opposed to the Lyman Series and Balmer Series.)

Lines:

  • 5 -> 4: 4050 nm
  • 6 -> 4: 2624 nm
  • 7 -> 4: 2165 nm
  • 8 -> 4: 1944 nm
  • 9 -> 4: 1817 nm
  • infinity -> 4: 1458 nm
Wavelength = RH × ( n-2 - m-2 )
  • RH is the Rydberg Constant for hydrogen, 1.09737316 x 107m-1 = 13.6eV / hc
  • m is the former level
  • n is the latter level

(Brackett,hydrogen,series,lines,spectrum)
http://en.wikipedia.org/wiki/Hydrogen_spectral_series
WaveLFreqPhoton
Energy
  
1458nm206THz850meVbeginBrackett Series
4050nm74THz306meVendBrackett Series

Referenced by:
Hydrogen (H)
Spectral Line

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