Abstract
For the first time, we present the comparison of Autler–Townes (AT) splitting in fluorescence and six-wave mixing (SWM) signals with electromagnetically induced transparency (EIT). With the detunings of the generating or external-dressing fields scanned, the two signals are distinguished theoretically and investigated experimentally. The EIT separation and AT splitting in fluorescence and SWM can be controlled by a phase determined by the angle in between the incident beams. These phenomena also can be modulated by the incident beam powers. In particular, the anti-AT splitting representing the vanishing tendency of secondary AT splitting is observed.
© 2013 Optical Society of America
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