Trapping of Cold Excitons with Laser Light
A. T. Hammack, M. Griswold, L. V. Butov, L. E. Smallwood, A. L. Ivanov, A. C. Gossard
Abstract
Optical trapping and manipulation of neutral particles has led to a variety of experiments from stretching DNA-molecules to trapping and cooling of neutral atoms. An exciting recent outgrowth of the technique is an experimental implementation of atom Bose-Einstein condensation. In this paper, we propose and demonstrate laser induced trapping for a new system--a gas of excitons in quantum well structures. We report on the trapping of a highly degenerate Bose gas of excitons in laser induced traps.
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