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Optics Letters

Optics Letters


  • Vol. 28, Iss. 17 — Sep. 1, 2003
  • pp: 1579–1581

Precise frequency measurements of atomic transitions by use of a Rb-stabilized resonator

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

Optics Letters, Vol. 28, Issue 17, pp. 1579-1581 (2003)

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We demonstrate a technique for frequency measurements of atomic transitions with a precision of 30 kHz. The frequency is measured with a ring-cavity resonator whose length is calibrated against a reference laser locked to the D2 line of 87Rb , the frequency of which is known with 10-kHz accuracy. We have used this method to measure the hyperfine structure in the 5P3/2 state of 85Rb . We obtain precise values for the hyperfine constants, A=25.041(6) MHz and B=26.013(25)MHz , and a value of 77.992(20) MHz for the isotope shift in the D2 line.

© 2003 Optical Society of America

OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(020.3260) Atomic and molecular physics : Isotope shifts
(120.3940) Instrumentation, measurement, and metrology : Metrology

Ayan Banerjee, Dipankar Das, and Vasant Natarajan, "Precise frequency measurements of atomic transitions by use of a Rb-stabilized resonator," Opt. Lett. 28, 1579-1581 (2003)

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