Measurement of high-intensity laser pulse widths by use of tunneling ionization of atoms and ions

Abstract

We measured the pulse duration of amplified Ti:sapphire laser pulses by using the tunneling ionization of atoms and ions. Fringe-resolved autocorrelation signals with various effective nonlinear orders are measured by means of counting the number of ions at different charge states by the time-of-flight (TOF) method. The measured pulse widths agree well with the independently measured pulse width if we consider the pulse distortion by a focusing lens. Measurement of multiply charged ions by a TOF device is useful for extending the measurable intensity range and wavelength ranges.

© 2000 Optical Society of America

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