On the Use of Lambda Transitions in Atomic Frequency Standards

Filippo Levi, Aldo Godone, Salvatore Micalizio, Jacques Vanier

Abstract: The possibility of using a three-level-A-scheme for the excitation of the clock hyperfine transition in s’Rb is analyzed. The physics involved opens up two distinct avenues useful for the implementation of an atomic frequency standard, avenues based on two distinct phenomena: the electro-magnetically induced transparency (EIT or Dark Line) and the coherent microwave emission (Maser without population inversion). In spite of the close connection between the two phenomena, which are generated by the coherence created in the ground state by means of two coherent laser radiation fields (Coherent Population Trapping), the characteristics of an atomic frequency standard based on either of these phenomena may be quite different. The paper discusses the possibility of implementing on the basis of these two phenomena, new 87Rb atomic frequency standards having an excellent frequency stability, and makes explicit their differences.
Published in: Proceedings of the 31th Annual Precise Time and Time Interval Systems and Applications Meeting
December 7 - 9, 1999
Marriott's Laguna Cliffs Resort
Dana Point, California
Pages: 605 - 614
Cite this article: Levi, Filippo, Godone, Aldo, Micalizio, Salvatore, Vanier, Jacques, "On the Use of Lambda Transitions in Atomic Frequency Standards," Proceedings of the 31th Annual Precise Time and Time Interval Systems and Applications Meeting, Dana Point, California, December 1999, pp. 605-614.
Full Paper: ION Members/Non-Members: 1 Download Credit
Sign In