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Inhibition and enhancement of cesium two-photon transition under control field |
Optics Express, Vol. 20, Issue 13, pp. 14419-14427 (2012)
http://dx.doi.org/10.1364/OE.20.014419
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Abstract
The probability of two-photon transition (TPT) under a control field to inhibit the quantum interference and enhance the nonlinear optical cross section is observed. Essentially, this is a V-type electromagnetically induced transparency (EIT) with TPT instead of one photon transition. Numerical simulation based on solving the steady state density matrix can qualitatively fit the experimental data. A model of double-Lorentzian profile is used to fit the observed spectrum and give the de-convolution information of the inhibition of TPT spectrum due to EIT and enhancement on the wings of TPT. The frequency shift of the inhibit center is linear to the intensity of the control field (one-photon) and quadratic to the intensity of probe field (two-photon). Under the control field, a factor of 10 enhancements on the wings of the TPT is observed.
© 2012 OSA
OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(270.4180) Quantum optics : Multiphoton processes
(300.6210) Spectroscopy : Spectroscopy, atomic
ToC Category:
Atomic and Molecular Physics
History
Original Manuscript: April 18, 2012
Revised Manuscript: May 11, 2012
Manuscript Accepted: June 5, 2012
Published: June 13, 2012
Citation
Yi-Chi Lee, Ying-Yu Chen, Chun-Ju Wang, Hsiang-Chen Chui, Li-Bang Wang, and Chin-Chun Tsai, "Inhibition and enhancement of cesium two-photon transition under control field," Opt. Express 20, 14419-14427 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-13-14419
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