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Reconfiguration of spectral absorption features using a frequency-chirped laser pulse |
Applied Optics, Vol. 50, Issue 36, pp. 6548-6554 (2011)
http://dx.doi.org/10.1364/AO.50.006548
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Abstract
A technique is proposed to manipulate atomic population in an inhomogeneously broadened medium, which can set an arbitrary absorption spectrum to a uniform transparency (erasure) or to a nearly complete inversion. These reconfigurations of atomic spectral distribution are achieved through excitation of electronic transitions using a laser pulse with chirped frequency, which precisely affects selected spectral regions while leaving the rest of the spectrum unperturbed. An erasure operation sets the final atomic population inversion to zero and the inversion operation flips the population between the ground and the excited states, regardless of the previously existing population distribution. This technique finds important applications both in optical signal processing, where fast, recursive processing and high dynamic range are desirable and in quantum memory and quantum computing, which both require high efficiency and high fidelity in quantum state preparation of atomic ensembles. Proof-of-concept demonstrations were performed in a rare-earth doped crystal.
© 2011 Optical Society of America
OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Atomic and Molecular Physics
History
Original Manuscript: June 27, 2011
Revised Manuscript: October 14, 2011
Manuscript Accepted: October 15, 2011
Published: December 12, 2011
Citation
Mingzhen Tian, Tiejun Chang, Kristian D. Merkel, and W. Randall, "Reconfiguration of spectral absorption features using a frequency-chirped laser pulse," Appl. Opt. 50, 6548-6554 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-36-6548
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