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Generation of an isolated sub‐100 attosecond pulse in a two‐color laser field
Author(s) -
Guo YaHui,
Lu RuiFeng,
Han KeLi,
He GuoZhong
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.22168
Subject(s) - laser , attosecond , physics , pulse (music) , extreme ultraviolet , ultraviolet , optics , atomic physics , high harmonic generation , subharmonic , quantum , quantum mechanics , ultrashort pulse , nonlinear system , detector
We propose a method of generating an ultrabroad extreme ultraviolet continuum spectrum with a two‐color scheme. By combining a phase‐stabilized few‐cycle laser pulse and its subharmonic laser, the electron quantum paths in the laser field are significantly modulated, a broadened continuum spectrum of 190 eV can be obtained, and an isolated 85 attosecond (as) pulse is generated. By increasing the intensity of the subharmonic controlling pulse, the continuum spectrum is extended effectively and a single 53 as pulse is predicted. © 2009 Wiley Periodicals, Inc. Int J Quantum Chem, 2009