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A system usually characterized by electromagnetically induced absorption was investigated with a probe and a coupling laser. Properly tuning the laser polarizations and intensities, inversions in the lasers absorption were measured for the first time.
A system usually characterized by electromagnetically induced absorption was investigated with a probe and a coupling laser. Properly tuning the laser polarizations and intensities, inversions in the lasers absorption were measured for the first time.
A system usually characterized by electromagnetically induced absorption was investigated with a probe and a coupling laser. Properly tuning the laser polarizations and intensities, inversions in the lasers absorption were measured for the first time.
Extremely large optical Kerr non-linearities (n2) and (n4) were measured in two closed degenerate two-level transitions in the caesium D2 line when a probe and a coupling laser simultaneously probed and coupled the hyperfine structure in an atomic beam. The magnitude of the measured non-linearities in both transitions were found to be a function of the coupling laser intensity and of the probe detuning...
The concept of parametric spectra in electromagnetically induced transparency is clarified. In this context, the possibility for a coupling laser to reach absorption levels below the one-photon absorption is experimentally shown. In this sense, the first results of electromagnetically induced transparency for a coupling laser in a coherent-population-trapping dominated system are presented.
Giant Kerr nonlinearities about twelve orders of magnitudes greater than in glass were measured under negligible absorption conditions within two different closed transitions of the cesium D2 line characterized y electromagnetically induced transparency or absorption.
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