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Publication Citation: Magneto-Optical Trapping of Chromium Atoms

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Author(s): C Bradley; Jabez J. McClelland; W Anderson; Robert Celotta;
Title: Magneto-Optical Trapping of Chromium Atoms
Published: May 01, 2000
Abstract: We have constructed a magneto-optical trap for chromium atoms. Using trapping light at 425 nm and two repumping lasers tuned to intercombination transitions, over 106 atoms were trapped and average densities of over 1016 m-3 were obtained. Non-exponential loss of atoms is observed at high densities indicating inelastic collisions between trapped atoms. Over a range of trapping conditions, the density-dependent trap loss rate constant β is extracted from fluorescence decay curves and found to have values in the range of 10-15m3s-1,much larger than is observed in alkali traps.
Citation: Physical Review A (Atomic, Molecular and Optical Physics)
Volume: 61
Issue: 053407
Keywords: atom trapping,chromium,cold collisions,laser cooling,magneto-optic trap,MOT
Research Areas: Laser Cooling
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