I. V. Blonskii, V. N. Kadan, O. I. Shpotyuk, I. N. Dmitruk, I. A. Pavlov, “Direct observation of the space-time transformation of a femtosecond laser pulse in fused quartz”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2009, Volume 89, Issue 11,Pages <nobr>636

This article is cited in 7 papers

ATOMS, SPECTRA, RADIATIONS

Direct observation of the space-time transformation of a femtosecond laser pulse in fused quartz

I. V. Blonskii^a, V. N. Kadan^a, O. I. Shpotyuk^b, I. N. Dmitruk^a, I. A. Pavlov^a

^a Institute of Physics of the National Academy of Science of Ukraine
^b Scientific Research Company "Carat", 79031 Lviv, Ukraine

Abstract: The transformation of a femtosecond laser pulse propagating in fused quartz before and after its transition to a filamentation regime has been investigated by femtosecond time-resolved optical polarigraphy. The spatial periodicity of a light field along and across the propagation axis has been detected and its nature has been attributed to the interference of the conical and plane components of the wave packet of the filament. The ``supraluminal'' motions of the observed filament intensity maximum are due to the longitudinal transformation of the pulse profile.

PACS: 42.65.Re, 42.65.Jx, 52.38.Dx

Received: 15.04.2009