Filamentation without intensity clamping
Filamentation without intensity clamping
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Date
2010-09-27
Authors
Kiran, P. Prem
Bagchi, Suman
Arnold, Cord L.
Krishnan, Siva Rama
Kumar, G. Ravindra
Couairon, Arnaud
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Abstract
We present measurements of the supercontinuum emission (SCE) from ultrashort Ti:Saph laser pulse filamentation in air in a tightly focused geometry. The spectral broadening of SCE indicates that peak intensities exceed the clamping value of a few 1013 W/cm2 obtained for filamentation in a loose focusing geometry by at least one order of magnitude. We provide an interpretation for this regime of filamenation without intensity clamping. © 2010 Optical Society of America.
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Optics Express. v.18(20)