Abstract
We report on the Lamb-Dicke spectroscopy of the doubly forbidden (6s2)S01↔(6s6p)P03 transition in Hg199 atoms confined to a vertical 1D optical lattice. With lattice trapping of 103 atoms and a 265.6 nm probe laser linked to the LNE-SYRTE primary frequency reference we have determined the center frequency of the transition for a range of lattice wavelengths and at two lattice trap depths. We find the Stark-free (magic) wavelength to be 362.53(0.21) nm-essential knowledge for future use of this line in a clock with anticipated 10-18 range accuracy. We also present evidence of the laser excitation of a Wannier-Stark ladder of states in a lattice of well depth 10ER.
Original language | English |
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Article number | 073005 |
Journal | Physical Review Letters |
Volume | 106 |
Issue number | 7 |
DOIs | |
Publication status | Published - 18 Feb 2011 |
Externally published | Yes |