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Título
Carrier-envelope-phase insensitivity in high-order harmonic generation driven by few-cycle laser pulses
Autor(es)
Materia
Attosecond pulses
Hollow core fibers
Laser beam propagation
Laser sources
Phase matching
Soft x rays
Fecha de publicación
2015-08
Citación
C. Hernández-García, W. Holgado, L. Plaja, B. Alonso, F. Silva, M. Miranda, H. Crespo, and I. J. Sola, "Carrier-envelope-phase insensitivity in high-order harmonic generation driven by few-cycle laser pulses," Opt. Express 23, 21497-21508 (2015)
Resumen
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.
URI
DOI
10.1364/OE.23.021497
Colecciones
- ALF. Artículos [297]