Controlling an optical frequency by a single ion

Details Controlling an optical frequency by a single ion Controlling an optical frequency by a single ion

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.340..421s&link_type=abstract

In ESA, Frequency and Time Forum p 421-424 (SEE N93-24978 09-70)

Physics

Frequency Control, Ion Storage, Oscillations, Resonant Frequencies, Trapping, Barium, Frequency Standards, Laser Outputs, Yttrium

Scientific paper

The control of the oscillation frequency of a single mode signal laser by a narrow resonance of a single trapped ion may result in frequency generation of both satisfactory precision and unprecendented accuracy. The signature of resonant excitation cannot be derived from the very weak fluorescence on the control transition. Instead, the rate of dark intervals of simultaneously excited resonance light may be used as a discriminant for the signal resonance. Alternatively, two lasers may excite an E2 transition whose resonance is indicated by a 'dark line' in the resonance fluorescence. Perturbative effects in the dark lines of a single trapped Ba(+) ion, the narrowest of which is 63 kHz, are quantitatively studied and a dark line of a single Yb(+) ion is demonstrated. Systematic shifts of the signal frequency may be eliminated with residual inaccuracy smaller than 10 to the minus 15th power.

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