Generation of isolated attosecond pulses using unipolar and laser fields

Emilio Fiordilino, Pietro Paolo Corso, Francesco Saverio Persico, Fiordilino, Franco Persico, Corso, Orlando, Gianfranco Orlando

Risultato della ricerca: Articlepeer review

36 Citazioni (Scopus)

Abstract

A new scheme to generate isolated attosecond pulses is presented that involves the use of a laser field and of a unipolar field. The laser field has a pulse of intensity I¼1.5 1014Wcm 2 and wavelength ¼820 nm. The unipolar pulse is an asymmetric pulse consisting of a sharp peak, lasting approximately half a laser period, i.e. nearly 1.4 fs, followed by a long and shallow tail. We show that on combining these two fields, it is possible to generate isolated attosecond pulses as short as 1/10 of a laser period, i.e. approximately 270 as. Moreover, it is argued that this scheme is robust either against small variations of the laser envelope, or against small changes in the delay between the laser pump and the unipolar pulse.
Lingua originaleEnglish
pagine (da-a)1761-1767
Numero di pagine7
RivistaJournal of Modern Optics
Volume56
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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