Spectroscopy of the 1S0-3P0 Clock Transition of 87Sr in an Optical Lattice
Abstract
We report on the spectroscopy of the 5s2 1S0 (F=9/2) 5s5p 3P0 (F=9/2) clock transition of 87 Sr atoms (natural linewidth of 1 mHz) trapped in a one-dimensional optical lattice. Recoilless transitions with a linewidth of 0.7 kHz as well as the vibrational structure of the lattice potential were observed. By investigating the wavelength dependence of the carrier linewidth, we determined the magic wavelength, where the light shift in the clock transition vanishes, to be 813.50.9 nm.
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