Share Email Print
cover

Proceedings Paper

Ultra-high resolution spectroscopy with a 87Sr optical lattice clock
Author(s): G. K. Campbell; M. Boyd; A. Ludlow; S. Foreman; T. Zelevinsky; S. Blatt; T. Zanon; M. Miranda; M. Martin; J. Ye
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Recent results from the JILA 87Sr optical lattice clock are presented. Using the tight confinement of an optical lattice in combination wit a sub-Hz linewidth diode laser we have achieved a pulse-length limited linewidth of 1.8 Hz for the 1S0- 3P0 clock transition. This corresponds to a quality factor of Q ≈ 2.4 x 1014, and is a record for coherent spectroscopy. With the addition of a small magnetic bias field, the high line Q of the clock transition has also allowed us to resolve the nuclear-spin sublevels, and make a precision measurement of the differential Landé g-factor between the 1S0 and 3P0. We present the current accuracy and stability of the lattice clock, and in addition, we report on our development of precision tools for the lattice clock, including a stabilized clock laser, fs-comb based technology allowing accurate clock comparison in both the microwave and optical domains, and clock transfer over an optical fiber in an urban environment.

Paper Details

Date Published: 12 September 2007
PDF: 10 pages
Proc. SPIE 6673, Time and Frequency Metrology, 66730C (12 September 2007); doi: 10.1117/12.734581
Show Author Affiliations
G. K. Campbell, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
M. Boyd, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
A. Ludlow, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
S. Foreman, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
T. Zelevinsky, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
S. Blatt, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
T. Zanon, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
M. Miranda, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
M. Martin, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
J. Ye, JILA, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)


Published in SPIE Proceedings Vol. 6673:
Time and Frequency Metrology
R. Jason Jones, Editor(s)

© SPIE. Terms of Use
Back to Top