Abstract

We have studied coherent interactions of zero-π (0-π) pulses with a two-level system. The complete undamped Bloch equations and their rotating-wave, slowly varying envelope approximation version have both been considered. An expression describing a pulse Bloch–Siegert shift has been found. We also show that, within the usual Bloch theory, nonresonant 0-π pulses may lead to complete inversion of the atom.

© 1986 Optical Society of America

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