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Journal of the Optical Society of America B

Coherent multiphoton interactions using sequences of picosecond pulses

Arindum Mukherjee, Nandini Mukherjee, Grigory Arzumanyan, Jean-Claude M. Diels

Published Jan 1, 1986• 0 citations
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•Aug 1, 1987•0 citations
The work of this dissertation has been to prove that the coherence of multiphoton excitation can be studied by an appropriately phased and time delayed sequence of pulses. An application of this fundamental study of coherence has been made for the enhancement of third harmonic generation. The coherent recovery of the energy lost to the two photon absorption process enalled a larger propagation distance for the fundamental than in an interaction which is incoherent or coherent, but not using a 90 degree phase shifted pulse pair. Phase matching over this longer propagation distance gave an enhancement of third harmonic generation.