Optical phase information writing and storage in populations of metastable quantum states
JOSA B, Vol. 26, Issue 10, pp. 1959-1966 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001959
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Abstract
We propose a scheme for robust writing and storage of optical phase information in populations of metastable states of the atoms with a tripod structure of levels by using frequency-chirped laser pulses. The method provides much longer storage times compared with the schemes based on the collective atomic spin coherences. A negligible excitation of the atom provides immunity to decoherence induced by decay of the excited states. The method is robust against small-to-medium variations in the laser pulse intensity and speed of the chirp and, being insensitive to resonance conditions, it is effective both in homogeneously and inhomogeneously broadened media.
© 2009 Optical Society of America
OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(210.0210) Optical data storage : Optical data storage
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Optical Data Storage
History
Original Manuscript: March 12, 2009
Revised Manuscript: June 29, 2009
Published: September 25, 2009
Citation
G. P. Djotyan, N. Sandor, J. S. Bakos, and Zs. Sörlei, "Optical phase information writing and storage in populations of metastable quantum states," J. Opt. Soc. Am. B 26, 1959-1966 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-10-1959
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