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Toward the single-cycle regime in the generation of high-order laser harmonics

Published online by Cambridge University Press:  01 July 2004

M. PASCOLINI ,
L. POLETTO ,
G. SANSONE ,
S. STAGIRA ,
C. VOZZI ,
M. NISOLI ,
P. VILLORESI ,
G. TONDELLO  and
S. DE SILVESTRI
M. PASCOLINI
Affiliation:
INFM Laboratory for Ultraviolet and X-ray Optical Researches INFM National Laboratory for Ultrashort and Ultraintense Optical Science DEI–Università di Padova, Padova, Italy
L. POLETTO
Affiliation:
INFM Laboratory for Ultraviolet and X-ray Optical Researches INFM National Laboratory for Ultrashort and Ultraintense Optical Science DEI–Università di Padova, Padova, Italy
G. SANSONE
Affiliation:
INFM National Laboratory for Ultrashort and Ultraintense Optical Science Dipartimento di Fisica, Politecnico, Milano, Italy
S. STAGIRA
Affiliation:
INFM National Laboratory for Ultrashort and Ultraintense Optical Science Dipartimento di Fisica, Politecnico, Milano, Italy
C. VOZZI
Affiliation:
INFM National Laboratory for Ultrashort and Ultraintense Optical Science Dipartimento di Fisica, Università di Milano, Milano, Italy
M. NISOLI
Affiliation:
INFM National Laboratory for Ultrashort and Ultraintense Optical Science Dipartimento di Fisica, Politecnico, Milano, Italy
P. VILLORESI
Affiliation:
INFM Laboratory for Ultraviolet and X-ray Optical Researches INFM National Laboratory for Ultrashort and Ultraintense Optical Science DEI–Università di Padova, Padova, Italy
G. TONDELLO
Affiliation:
INFM Laboratory for Ultraviolet and X-ray Optical Researches INFM National Laboratory for Ultrashort and Ultraintense Optical Science DEI–Università di Padova, Padova, Italy
S. DE SILVESTRI
Affiliation:
INFM National Laboratory for Ultrashort and Ultraintense Optical Science Dipartimento di Fisica, Politecnico, Milano, Italy
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Abstract

The dependence of the high-order harmonic cutoff spectrum from the absolute phase of the laser pulse is here experimentally investigated. Noticeable shifts are observed. Their interpretation is proposed with a model based on the absolute-phase dependence of the trajectories of the photoelectrons that contribute to a given harmonic order.

Keywords

Coherent VUV radiationFemtosecond phenomenaFew-optical-cycle dynamicsHigh-order-harmonics
Type
Research Article
Information
Laser and Particle Beams , Volume 22 , Issue 3 , July 2004 , pp. 335 - 339
Copyright
© 2004 Cambridge University Press

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References

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