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RESEARCH PRODUCT
Doppler free ?dark resonances? for hyperfine measurements and isotope shifts in Ca+ isotopes in a Paul trap
Günter WerthT. ReisingerT. GudjonsAnn-marie Mårtensson-pendrillB. HilbertF. Kurthsubject
PhysicsWavelengthIsotopeMetastabilityExcited statePhysics::Atomic PhysicsIon trapAtomic physicsGround stateHyperfine structureMagnetic dipoleAtomic and Molecular Physics and Opticsdescription
We have observed “dark resonances” in theA-type level structure, formed by the 4S1/2 ground state, the 4P1/2 excited state and the low lying metastable 3D3/2 state in the Calcium ion, confined in a Paul radio-frequency trap. These Doppler-free and potentially very narrow resonances were used to determine the magnetic dipole hyperfine interaction constant A for the 4P1/2 and 3D3/2 state of43Ca+, giving −142(8) MHz and −48.3(1.6) MHz, respectively. From measurements of the P-D (E1) and S-D (E2) transition wavelength in a mixture of43Ca+ and40Ca+ we determined the isotope shifts of these lines.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-12-01 | Zeitschrift f�r Physik D Atoms, Molecules and Clusters |