J. Phys. France
Volume 40, Numéro 10, octobre 1979
Page(s) 961 - 964
J. Phys. France 40, 961-964 (1979)
DOI: 10.1051/jphys:019790040010096100

Observation of modulation in the transfer of orientation by collisions of the second kind

W.D. Evans1, 2 et W. Gough1

1  Department of Physics, University College, Cardiff, U.K.
2  Now at Department of Medical Physics and Bioengineering,University Hospital of Wales, Cardiff, U.K.

Modulation has been observed in orientation transfer from mercury to cadmium under the simultaneous application of a static and a rotating magnetic field. The dependence of the depth of modulation on the static field has been investigated, and the agreement with theory is satisfactory.

On a observé les modulations lors du transfert collisionnel d'orientation entre atomes de mercure et de cadmium, sous l'application simultanée d'un champ magnétique constant et d'un champ toumant. On a étudié la dépendance de la profondeur de modulation en fonction du champ constant, et l'accord avec la théorie est satisfaisant.

3250 - Fluorescence, phosphorescence (including quenching).
3280B - Level crossing and optical pumping.
3450E - Rotational and vibrational energy transfer.

Key words
atom atom collisions -- atomic fluorescence -- cadmium -- Hanle effect -- mercury metal -- optical modulation -- quantum beat spectra