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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 1 — Jan. 1, 2004
  • pp: 79–82

Precise measurements of atomic energy levels: D lines and fine-structure interval in K

Ayan Banerjee, Dipankar Das, and Vasant Natarajan  »View Author Affiliations


JOSA B, Vol. 21, Issue 1, pp. 79-82 (2004)
http://dx.doi.org/10.1364/JOSAB.21.000079


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Abstract

We use a diode laser locked to a Rb transition as the frequency reference, along with a scanning Michelson interferometer, to make precise frequency measurements of atomic energy levels. The high precision is possible because the Rb reference frequency is known with submegahertz accuracy. We measured the frequencies of the D lines in K and obtained the following values: 12 985.169 60(20) cm-1 for the 4P1/2 state (D1 line), 13 042.875 95(21) cm-1 for the 4P3/2 state (D2 line), and 57.706 35(24) cm-1 for the 4P3/24P1/2 fine-structure interval. The errors represent approximately an order-of-magnitude improvement over tabulated values.

© 2004 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(300.6210) Spectroscopy : Spectroscopy, atomic

Citation
Ayan Banerjee, Dipankar Das, and Vasant Natarajan, "Precise measurements of atomic energy levels: D lines and fine-structure interval in K," J. Opt. Soc. Am. B 21, 79-82 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-1-79


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