Transition In Rubidium Research Articles

Heterodyne Doppler-free two-photon absorption and dispersion in rubidium vapour

Heterodyne Doppler-free spectroscopy, previously demonstrated on single-photon resonances (heterodyne saturation spectroscopy), has been extended to two-photon transitions in rubidium (5S-5D and 5S-7S). It provides a simple method of observing the two-photon dispersion lineshape directly. The noticeable sensitivity of this absorption technique, which has been used for an optical measurement of the hyperfine structure of the 5D level, is discussed in comparison with that currently obtained in two-photon-induced fluorescence.

Transients in optical bistability

In this paper we report on both a theoretical model for the transients in optical bistability in a Fabry-Perot cavity and the corresponding experimental results. An analytical calculation permits to predict the shape of the transient curves and the order of magnitude of their time duration in the case of a slow sweep of the length of the cavity. The experiment, which uses the nonlinearity arising from a two-photon transition in rubidium, yields results in good agreement with the theoretical calculation.

Ejected electron spectrum of rubidium autoionizing levels obtained by electron impact excitation

Autoionizing transitions in rubidium have been observed by measuring the energy spectrum of electrons ejected at 90° to the direction of an incident 500 eV electron beam. Comparisons have been made with the ultraviolet spectra of Beutler (1934) and Connerade (1970).

A proton magnetic resonance study of phase transitions in rubidium and caesium stearates

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