- A series of lines in the infrared spectrum of atomic hydrogen, between 1.88 and 0.82 micrometres.More example sentences
- The Paschen series describes transitions from a higher level down to n = 3.
- See a 1922 paper by Frederick Brackett comparing Bohr's formula for the hydrogen spectral series with the Paschen series and with two members of a new series.
1920s: named after L. C. H. Friedrich Paschen (1865–1947), German physicist.
More definitions of Paschen seriesDefinition of Paschen series in:
- The US English dictionary