Open AccessThe two-electron attosecond streak camera for time-resolving intra-atomic collisions
Author(s) -
A. Emmanouilidou,
A. Staudte,
P. B. Corkum
Publication year - 2010
Publication title -
new journal of physics
Language(s) - French
Resource type - Journals
SCImago Journal Rank - 1.584
H-Index - 190
ISSN - 1367-2630
DOI - 10.1088/1367-2630/12/10/103024
Subject(s) - attosecond , physics , streak camera , extreme ultraviolet , streak , electron , atomic physics , collision , pulse (music) , optics , laser , quantum mechanics , ultrashort pulse , computer security , detector , computer science
We generalize the one-electron attosecond streak camera to time-resolve the correlated two-electron escape dynamics during a collision process involving a deep core electron. The collision process is triggered by an extreme ultraviolet (XUV) attosecond pulse (single-photon absorption) and probed by a weak infrared field. The principle of our two-electron streak camera is that by placing the maximum of the vector potential of the probing field at the time of collision, we get the maximum splitting of the inter-electronic angle of escape. We thereby determine the time of collision.Nous g\ue9n\ue9ralisons l\u2019usage de la cam\ue9ra \ue0 image continue \ue0 l\u2019\ue9chelle de l\u2019attoseconde \ue0 un \ue9lectron pour r\ue9soudre dans le temps la dynamique de fuite de deux \ue9lectrons pendant un processus de collision mettant en jeu un \ue9lectron tr\ue8s profond. Le processus de collision est d\ue9clench\ue9 par une impulsion attoseconde (absorption d\u2019un seul photon) dans l\u2019ultraviolet extr\ueame (XUV) et probablement par un champ infrarouge faible. Le principe de notre cam\ue9ra \ue0 image continue \ue0 deux \ue9lectrons est que, si on place le maximum du potentiel vectoriel du champ de sondage au moment de la collision, nous obtenons une ouverture maximale de l\u2019angle de fuite inter-\ue9lectrons. Nous pouvons ainsi d\ue9terminer le moment de la collision.Peer reviewed: YesNRC publication: Ye