Resonant multiphoton ionisation and third-harmonic generation in mercury vapour
- 28 April 1983
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 16 (8), L227-L232
- https://doi.org/10.1088/0022-3700/16/8/004
Abstract
The interaction of intense dye laser radiation (up to about 100 GW cm-2) with Hg vapour in the pressure region of 1015 to 10-1 Torr leads to competition between multiphoton ionisation-dominant at low pressure-and third-harmonic generation ( approximately 1850AA) prevailing at high pressure. In particular, third-harmonic generation enhanced by a four-photon resonance is-to the authors' knowledge-reported for the first time.Keywords
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