A novel absorption resonance for atomic clocks

Author

Phillips, David F. ; Novikova, Irina ; Zibrov, Sergei ; Smallwood, Chris ; Taichenachev, Aleksei V. ; Yudin, Valeriy I. ; Walsworth, Ronald L. ; Zibrov, Alexander S.

Author_Institution

Harvard-Smithsonian Center for Astrophys., Cambridge, MA, USA

fYear

2005

fDate

29-31 Aug. 2005

Abstract

We report an experimental study of an all-optical three-photon-absorption resonance (known as an "N-resonance") and discuss its potential application as an alternative to atomic clocks based on coherent population trapping (CPT). We present measurements of the N-resonance contrast, width and light shift for ⁸⁷Rb under various conditions including both D₁ and D₂ optical transitions. Under conditions such that first-order light shifts cancel, we observe promising short-term frequency stability (∼ 1.5 × 10^-11 τ_{- 1}2 /) for an N-resonance on the Di transition of ⁸⁷ Rb vapor.

Keywords

atomic clocks; frequency stability; light absorption; multiphoton processes; resonant states; rubidium; N-resonance; Rb; all-optical three-photon-absorption resonance; atomic clocks; coherent population trapping; first-order light shifts; frequency stability; Absorption; Atom optics; Atomic clocks; Frequency; Nonlinear optics; Optical pumping; Physics; Probes; Resonance; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and Exposition, 2005. Proceedings of the 2005 IEEE International

Print_ISBN

0-7803-9053-9

Type

conf

DOI

10.1109/FREQ.2005.1574031

Filename

1574031