Creating a self-induced dark spontaneous-force optical trap for neutral atoms
Abstract
This communication describes the observation of a new type of dark spontaneous-force optical trap (dark SPOT) obtained without the use of a mask blocking the central part of the repumper laser beam. We observe that loading a magneto-optical trap (MOT) from a continuous and intense flux of slowed atoms and by appropriately tuning the frequency of the repumper laser is possible to achieve basically the same effect of the dark SPOT, using a simpler apparatus. This work characterizes the new system through measurements of absorption and fluorescence imaging of the atomic cloud and presents a very simple model to explain the main features of our observations. We believe that this new approach may simplify the current experiments to produce quantum degenerated gases.
Cite
@article{arxiv.physics/0402106,
title = {Creating a self-induced dark spontaneous-force optical trap for neutral atoms},
author = {S. R. Muniz and K. M. F. Magalhães and E. A. L. Henn and L. G. Marcassa and V. S. Bagnato},
journal= {arXiv preprint arXiv:physics/0402106},
year = {2016}
}
Comments
13 pages, 8 figures, Submitted to Optics Communications (30/10/2003), accepted for publication (Feb/2004)