Electromagnetically induced transparency of powerful probe pulses
Parshkov Oleg M, Makoveichuk Alexander A.
Yuri Gagarin State Technical University of Saratov
Abstract
Electromagnetically induced transparency of nanosecond high-power probe pulses has been studied theoretically. The analysis was carried out for the Ʌ-scheme of inhomogeneously broadened quantum transitions between degenerate levels , , and for the 208Pb isotope. Cases of resonance and quasi-resonance are considered. It is shown that at a higher power of the input probe radiation, the pulses into which it decays in the medium are not pulses of normal modes, but their polarization characteristics fluctuate around the values inherent in normal modes. In this case, the phase modulation of the probe field is present at all stages of its propagation in the medium. It is shown that with an increase in the intensity of the input probe radiation, the transparency of the medium for the probe field decreases. However, it is large enough if the polarization characteristics of the probe radiation coincide with those for normal modes of the parallel type.
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Parshkov Oleg M
Yuri Gagarin State Technical University of Saratov
Russia
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