Capture Velocity for a Magneto-Optical Trap in a Broad Range of Light Intensity

Details Capture Velocity for a Magneto-Optical Trap in a Broad Range of Light Intensity Capture Velocity for a Magneto-Optical Trap in a Broad Range of Light Intensity

2001-04-18

arxiv.org/abs/physics/0104051v1

Phys. Rev. A 65, 015402 (2002)

Physics

Atomic Physics

2 pages, 2 figures

Scientific paper

10.1103/PhysRevA.65.015402

In a recent paper, we have used the dark-spot Zeeman tuned slowing technique [Phys. Rev. A 62, 013404-1, (2000)] to measure the capture velocity as a function of laser intensity for a sodium magneto optical trap. Due to technical limitation we explored only the low light intensity regime, from 0 to 27 mW/cm^2. Now we complement that work measuring the capture velocity in a broader range of light intensities (from 0 to 400 mW/cm^2). New features, observed in this range, are important to understant the escape velocity behavior, which has been intensively used in the interpretation of cold collisions. In particular, we show in this brief report that the capture velocity has a maximum as function of the trap laser intensity, which would imply a minimum in the trap loss rates.

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