Stationary Light Pulses without Bragg Gratings

Details Stationary Light Pulses without Bragg Gratings Stationary Light Pulses without Bragg Gratings

2008-10-06

arxiv.org/abs/0810.0903v1

Phys. Rev. Lett. 102, 213601 (2009)

Physics

Optics

4 pages and 5 figures

Scientific paper

10.1103/PhysRevLett.102.213601

The underlying mechanism of the stationary light pulse (SLP) was identified as a band gap being created by a Bragg grating formed by two counter-propagating coupling fields of similar wavelength. Here we present a more general view of the formation of SLPs, namely several balanced four-wave mixing processes sharing the same ground-state coherence. Utilizing this new concept we report the first experimental observation of a bichromatic SLP at wavelengths for which no Bragg grating can be established. We also demonstrate the production of a SLP directly from a propagating light pulse without prior storage. Being easily controlled externally makes SLPs a very versatile tool for low-light-level nonlinear optics and quantum information manipulation.

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