Level Crossing Resonance

The amplitude and width (FWHM) of the level-crossing resonance si(H) are obtained from Eqs. 8 and 10... 

Besides the hyperfine constants for the muonium impurity itself, one can also investigate the so-called superhyperfine interaction for the neighboring 29Si atoms. These values have also been accurately measured (Kiefl et al., 1988) with level-crossing resonance.For the anisotropic parameters, it is customary to compare b with Aj,ree, which is an average of r 3 determined for the valence p-orbital. The results are given in Table II. Both... 

There are still other means to carry out p.SR experiments. Most notably among them is the so-called (Avoided) Level Crossing Resonance (LCR or ALC, Kreitzman 1986, Kieft 1986, Heming et al. 1986, Krefl and Kreitzman 1992, Leon 1994). In this review we will... 

So far we have considered level crossing monitored through spontaneous emission. A level-crossing resonance can also manifest itself as a change in absorption of an intense monochromatic wave tuned to the molecular transition when the absorbing levels cross under the influence of external fields. The physical origin of this stimulated level-crossing spectroscopy is based on saturation effects and may be illustrated by a simple example [845]. 

C. Cohen-Tannoudji Level-crossing resonances in atomic ground states. Corn-men. At. Mol. Rhys. 1, 150 (1970)... 

Dupont-Roc, J., Haroche, S., and Cohen-Tannoudji, C. (1969). Detection of very weak magnetic fields (10 Gauss) by Rb zero-field level crossing resonances. Physics Letters, 28A, 107—108. 

---