Axicon Lens for Coherent Matter Waves

Details Axicon Lens for Coherent Matter Waves Axicon Lens for Coherent Matter Waves

2006-06-21

arxiv.org/abs/cond-mat/0606540v1

Physics

Condensed Matter

Other Condensed Matter

11 pages, 5 figures, Multimedia files (movies) available in our website: http://www.physics.gatech.edu/chandra/index.htm

Scientific paper

10.1364/OE.14.008947

We have realized a conical matter wave lens. The repulsive potential of a focused laser beam was used to launch a Bose-Einstein condensate into a radially expanding wavepacket whose perfect ring shape was ensured by energy conservation. In spite of significant interactions between atoms, the spatial and velocity widths of the ring along its radial dimension remained extremely narrow, as also confirmed by numerical simulations. Our results open the possibility for cylindrical atom optics without the perturbing effect of mean-field interactions.

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