Attosecond Synchronization of High-Order Harmonics from Midinfrared Drivers

Loading...
Thumbnail Image

Date

2009-03-06

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Research Projects

Organizational Units

Journal Issue

Abstract

The group delay dispersion, also known as the attochirp, of high-order harmonics generated in gases has been identified as the main intrinsic limitation to the duration of Fourier-synthesized attosecond pulses. Theory implies that the attochirp, which is inversely proportional to the laser wavelength, can be decreased at longer wavelength. Here we report the first measurement of the wavelength dependence of the attochirp using an all-optical, in situ method [N. Dudovich et al., Nature Phys. 2, 781 (2006)]. We show that a 2 μm driving wavelength reduces the attochirp with respect to 0.8 μm at comparable intensities.

Description

Keywords

Citation

Lin Ding et al, "Attosecond Synchronization of High-Order Harmonics from Midinfrared Drivers," Physical Review Letters 102, no. 9 (2009), doi:10.1103/PhysRevLett.102.093002