Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster III

A 26.50: Poster

Donnerstag, 17. März 2011, 16:00–18:30, P2

Investigation of the hfs splittings in chromium atom by LIF and ABMR-LIRF methods — Andrzej Krzykowski, •Przemysław Głowacki, Andrzej Jarosz, and Jerzy Dembczyński — Chair of Quantum Engineering and Metrology, Poznań University of Technology, ul. Nieszawska 13B, 60-965 Poznań, Poland

Due to a small amount of experimental data concerning the hfs (hyperfine structure) of chromium atom available in the literature, our research group undertook a systematic study on this element. Our investigations were performed on an atomic beam apparatus by the LIF method (laser induced fluorescence) and ABMR-LIRF method (atomic beam magnetic resonance, detected by laser induced resonance fluorescence). For the electron levels belonging to the multiplet 3d⁵4s a ⁵P it was possible to obtain the values of the hfs intervals with the accuracy of about 1 kHz. This allowed us to determine precisely the values of the hfs constants A and B, representing magnetic dipole and electric quadrupole interactions. Additionally, for the presented levels the estimation of the value of the hfs constant C (magnetic octupole interaction) was made.

This work was performed within the framework of DS63-029/11.