Absolute heterodyne frequency measurement of the ^88Sr^+ 455-THz S–D single ion transition
1996; Optica Publishing Group; Volume: 21; Issue: 11 Linguagem: Inglês
10.1364/ol.21.000824
ISSN1539-4794
Autores Tópico(s)Atomic and Molecular Physics
ResumoA system is described for the absolute frequency measurement of a laser source at 445 THz probing a narrow resonance of a trapped single ion of strontium. The 474-THz frequency from a laser referenced to an iodinestabilized helium-neon laser and a known 29-THz frequency from a saturation-stabilized carbon dioxide laser are mixed in an AgGaS(2) nonlinear crystal to synthesize the 445-THz radiation. A preliminary measurement of the (88)Sr(+) 5s(2)S(1/2)-4d(2)D(5/2) center frequency yielded a frequency of 444779044.14 +/- 0.39 MHz (1sigma).
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