A New Type of Two-photon Forward Radiation in Pure Liquids

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dc.creatorBian, Hong-tao
dc.creatorRao, Yi
dc.creatorXu, Yan-yan
dc.creatorLiu, An-an
dc.creatorGuo, Yuan
dc.creatorWang, Hong-fei
dc.date2007-06-16
dc.date.accessioned2026-07-07T08:10:39Z
dc.date.available2026-07-07T08:10:39Z
dc.descriptionUnexpected spectral features are observed in the two photon spectrum of the pure water in the forward direction when an 80 femtosecond laser pulse is focused at 10^10Wcm-2 or less. Such intensity is much lower than the breakdown or stimulated threshold of the liquid water. The two broad features are about 2700cm-1 and 5000cm-1 red shifted from the hyper-Rayleigh wavelength, respectively, and they are quadratic with the laser intensity. They do not match the known Raman or hyper-Raman frequencies of water, and they are both centered at a narrow angle in the forward direction. Several other liquids also exhibited similar but molecular specific spectral features.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0706.2408
dc.identifierhttp://arxiv.org/abs/0706.2408
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131883
dc.subjectChemical Physics
dc.subjectOptics
dc.titleA New Type of Two-photon Forward Radiation in Pure Liquids
dc.typetext

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