Kayser (unit)

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Physical unit
Unit name Kayser
Unit symbol
Physical quantity (s) Wavenumber
dimension
system CGS system of units
In SI units
In CGS units
Named after Heinrich Kayser

The Kayser ( unit symbol : kayser) is after the German physicist Heinrich Kayser named traditional unit of wavenumber . It was recommended by the Joint Commission for Spectroscopy before 1952 on the basis of a suggestion by William Frederick Meggers , but was not included in the International System of Units . Nevertheless, the unit has long been used in spectroscopy.

other names

Albert Christopher Candler suggested naming the unit Rydberg after the Swedish physicist Johannes Rydberg . Another name proposed in 1951 was Balmer , after the Swiss physicist Johann Jakob Balmer . After some heated discussions, no unit of its own was finally introduced, but cm −1 continued to be used.

1 kayser = 1 cm −1 = 100 m −1

Individual evidence

  1. ^ A b c W. Brügel: Scientific research reports, series I, section A, vol. 62. Introduction to ultrared spectroscopy , Springer-Verlag, Darmstadt 1969, p. 4.
  2. ^ Theo Mayer-Kuckuk : Atomic Physics . An introduction. Vieweg + Teubner Verlag, 1997, ISBN 978-3-519-43042-1 , p. 24 , doi : 10.1007 / 978-3-663-01606-9 ( google.es ).
  3. ^ HG Jerrard & DB McNeill: A Dictionary of Scientific Units. Including dimensionless numbers and scales , Chapman and Hall, London / New York, 1986, p. 15.