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Phys. Rev. A 81, 023405 (2010) [4 pages]

Frequency shift by optical coherent control

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Emilio Ignesti1, Roberto Buffa1,2, Lorenzo Fini3,4, Emiliano Sali3,4, Marco V. Tognetti2, and Stefano Cavalieri3,4
1Dipartimento di Fisica, Università di Siena, Via Roma 56, I-53100 Siena, Italy
2CNISM, Unità di Siena, Via Roma 56, I-53100 Siena, Italy
3Dipartimento di Fisica, Università di Firenze and CNISM, Via G. Sansone 1, I-50019 Sesto Fiorentino, Firenze, Italy
4European Laboratory for Non-linear Spectroscopy (LENS), Università di Firenze, Via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy

Received 15 July 2009; published 8 February 2010

We report the experimental observation of an optically controllable shift of the central frequency of a laser pulse, using a scheme based on dynamical electromagnetically induced transparency. This is evidence of frequency shift controllable by a coherent process. Original theoretical results are in agreement with the experimental data.

© 2010 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.81.023405
DOI:
10.1103/PhysRevA.81.023405
PACS:
32.80.Qk, 42.50.Gy