Observation of coherent transients in ultrashort chirped excitation of an undamped two-level system

Preprint

11 May 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.physics/0105032

Abstract

The effects of Coherent excitation of a two level system with a linearly chirped pulse are studied theoretically and experimentally (in Rb (5s - 5p)) in the low field regime. The Coherent Transients are measured directly on the excited state population on an ultrashort time scale. A sharp step corresponds to the passage through resonance. It is followed by oscillations resulting from interferences between off-resonant and resonant contributions. We finally show the equivalence between this experiment and Fresnel diffraction by a sharp edge.

Keywords

COHERENT TRANSIENTS
CHIRPED EXCITATION
ULTRASHORT CHIRPED
UNDAMPED TWO
OSCILLATIONS
LEVEL SYSTEM
RESONANT

All Related Versions

Version 1, 2001-05-11, ArXiv
Published version: Physical Review Letters, 87 (3), 033001.

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