Carrier-envelope-phase insensitivity in high-order harmonic generation driven by few-cycle laser pulses

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Hernandez Garcia, C (Author) Other; Holgado, W (Author) Other; Plaja, L (Author) Other; Alonso, B (Author) Other; Silva, F (Author) Other; Miranda, M (Author) Other; Crespo, H (Author) FCUP; Sola, IJ (Author) Other

Journal

Title: Optics Express

Vol. 23

Pages: 21497-21508

ISSN: 1094-4087

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 11 Citations

Scopus - 11 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-00K-04B

DOI: 10.1364/oe.23.021497

Abstract (EN): We present evidence for self-stabilization of the relative spectral phase of high-order harmonic emission against intensity variations of the driving field. Our results demonstrate that, near the laser focus, phase matching of the harmonic field from a macroscopic target can compensate for the intensity dependence of the intrinsic phase of the harmonics emitted by a single radiator. As a consequence, we show experimentally and theoretically the insensitivity of the harmonic spectra produced at the laser focus against variations of the carrier-envelope phase (CEP) of a sub-two-cycle driving field. In addition, the associated attosecond pulse trains exhibit phase locking against CEP changes of the few-cycle driver. (C) 2015 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12