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

Hernandez-Garcia, C.; Holgado, W.; Plaja, L.; Alonso, B.; Silva, F.; Miranda, Miguel LU ; Crespo, H. and Sola, I. J. (2015) In Optics Express 23(16). p.21497-21508
Abstract
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... (More)
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 (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
23
issue
16
pages
21497 - 21508
publisher
OSA
external identifiers
  • wos:000361036400120
  • scopus:84954486120
ISSN
1094-4087
DOI
10.1364/OE.23.021497
language
English
LU publication?
yes
id
84a1e0ab-6f27-4628-8995-42b6c2e63467 (old id 8077315)
date added to LUP
2015-10-23 11:14:24
date last changed
2017-08-13 04:04:01
@article{84a1e0ab-6f27-4628-8995-42b6c2e63467,
  abstract     = {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},
  author       = {Hernandez-Garcia, C. and Holgado, W. and Plaja, L. and Alonso, B. and Silva, F. and Miranda, Miguel and Crespo, H. and Sola, I. J.},
  issn         = {1094-4087},
  language     = {eng},
  number       = {16},
  pages        = {21497--21508},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Carrier-envelope-phase insensitivity in high-order harmonic generation driven by few-cycle laser pulses},
  url          = {http://dx.doi.org/10.1364/OE.23.021497},
  volume       = {23},
  year         = {2015},
}