Non-dispersive optics using storage of light

Details Non-dispersive optics using storage of light Non-dispersive optics using storage of light

2010-03-17

arxiv.org/abs/1003.3389v1

Physics

Atomic Physics

11 pages, 4 figures, accepted for publication in Physical Review A

Scientific paper

We demonstrate the non-dispersive deflection of an optical beam in a Stern-Gerlach magnetic field. An optical pulse is initially stored as a spin-wave coherence in thermal rubidium vapour. An inhomogeneous magnetic field imprints a phase gradient onto the spin wave, which upon reacceleration of the optical pulse leads to an angular deflection of the retrieved beam. We show that the obtained beam deflection is non-dispersive, i.e. its magnitude is independent of the incident optical frequency. Compared to a Stern-Gerlach experiment carried out with propagating light under the conditions of electromagnetically induced transparency, the estimated suppression of the chromatic aberration reaches 10 orders of magnitude.

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