Mathilde Fouché - Profile on Academia.edu (original) (raw)
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The University of New South Wales
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Papers by Mathilde Fouché
IEEE Transactions on Instrumentation and Measurement, 2000
In this paper, we report the observation of the higher order frequency shift due to the trapping ... more In this paper, we report the observation of the higher order frequency shift due to the trapping field in a 87 Sr optical lattice clock. We show that at the magic wavelength of the lattice, where the first order term cancels, the higher order shift will not constitute a limitation to the fractional accuracy of the clock at a level of 10 −18 . We also report an accurate frequency measurement of the clock transition. The frequency is determined to be ν1 S 0 − 3 P 0 = 429 228 004 229 879 (5) Hz with a fractional uncertainty that is comparable to state-of-the-art optical clocks with neutral atoms in free fall.
IEEE Transactions on Instrumentation and Measurement, 2000
In this paper, we report the observation of the higher order frequency shift due to the trapping ... more In this paper, we report the observation of the higher order frequency shift due to the trapping field in a 87 Sr optical lattice clock. We show that at the magic wavelength of the lattice, where the first order term cancels, the higher order shift will not constitute a limitation to the fractional accuracy of the clock at a level of 10 −18 . We also report an accurate frequency measurement of the clock transition. The frequency is determined to be ν1 S 0 − 3 P 0 = 429 228 004 229 879 (5) Hz with a fractional uncertainty that is comparable to state-of-the-art optical clocks with neutral atoms in free fall.