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Journal of the Optical Society of America B: Optical Physics
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Subpicosecond transient excitation of atomic vapor and the measurement of optical phase

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Abstract

The transient behavior of a frequency-swept optical pulse transmitted through a resonant vapor cell is observed by an optical sampling technique with ˜20-fsec time resolution. The observed 200-fsec transients are the fastest intensity sampling measurement ever made on an atomic vapor and provide a precise determination of the time- varying phase of the pulse. The observed phase shows deviations from a linear frequency sweep, which may account for previous limits on pulse compression. © 1986 Optical Society of America.

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Journal of the Optical Society of America B: Optical Physics

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