Sub-dekahertz Ultraviolet Spectroscopy of
- 18 September 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (12), 2462-2465
- https://doi.org/10.1103/physrevlett.85.2462
Abstract
Using a laser that is frequency locked to a Fabry-Perot etalon of high finesse and stability, we probe the 5d(10)6s (2)S(1/2)(F = 0)<-->5d(9)6s(2) (2)D(5/2)(F = 2) Deltam(F) = 0 electric-quadrupole transition of a single laser-cooled 199Hg+ ion stored in a cryogenic radio-frequency ion trap. We observe Fourier-transform limited linewidths as narrow as 6.7 Hz at 282 nm ( 1.06x10(15) Hz), yielding a line Q approximately 1.6x10(14). We perform a preliminary measurement of the 5d(9)6s(2) (2)D(5/2) electric-quadrupole shift due to interaction with the static fields of the trap, and discuss the implications for future trapped-ion optical frequency standards.Keywords
This publication has 15 references indexed in Scilit:
- Phase Coherent Vacuum-Ultraviolet to Radio Frequency Comparison with a Mode-Locked LaserPhysical Review Letters, 2000
- Visible Lasers with Subhertz LinewidthsPhysical Review Letters, 1999
- Laser-Cooled Mercury Ion Frequency StandardPhysical Review Letters, 1998
- Cryogenic Optical Resonators: A New Tool for Laser Frequency Stabilization at the 1 Hz LevelPhysical Review Letters, 1997
- Accurate measurement of the 12.6 GHz "clock" transition in trapped /sup 171/Yb/sup +/ ionsIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1997
- Metrological properties of CO2OsO4 optical frequency standardOptics Communications, 1997
- Delivering the same optical frequency at two places: accurate cancellation of phase noise introduced by an optical fiber or other time-varying pathOptics Letters, 1994
- Long-term stability of two diode-laser-pumped nonplanar ring lasers independently stabilized to two Fabry–Perot interferometersOptics Letters, 1993
- Linear Trap for High-accuracy Spectroscopy of Stored IonsJournal of Modern Optics, 1992
- Laser stabilization at the millihertz levelJournal of the Optical Society of America B, 1988