PMID- 29286733
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180102
LR  - 20180102
IS  - 1079-7114 (Electronic)
IS  - 0031-9007 (Linking)
VI  - 119
IP  - 24
DP  - 2017 Dec 15
TI  - Identifying the Tunneling Site in Strong-Field Ionization of H_2;+.
PG  - 243204
LID - 10.1103/PhysRevLett.119.243204 [doi]
AB  - The tunneling site of the electron in a molecule exposed to a strong laser field 
      determines the initial position of the ionizing electron and, as a result, has a 
      large impact on the subsequent ultrafast electron dynamics on the polyatomic 
      Coulomb potential. Here, the tunneling site of the electron of H_2;+ ionized 
      by a strong circularly polarized (CP) laser pulse is studied by numerically 
      solving the time-dependent Schrodinger equation. We show that the electron 
      removed from the down-field site is directly driven away by the CP field and the 
      lateral photoelectron momentum distribution (LPMD) exhibits a Gaussian-like 
      distribution, whereas the corresponding LPMD of the electron removed from the 
      up-field site differs from the Gaussian shape due to the Coulomb focusing and 
      scattering by the down-field core. Our current study presents the direct evidence 
      clarifying a long-standing controversy over the tunneling site in H_2;+ and 
      raises the important role of the tunneling site in strong-field molecular 
      ionization.
FAU - Liu, Kunlong
AU  - Liu K
AD  - Max-Planck-Institut fur Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale), 
      Germany.
FAU - Barth, Ingo
AU  - Barth I
AD  - Max-Planck-Institut fur Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale), 
      Germany.
LA  - eng
PT  - Journal Article
DEP - 20171215
PL  - United States
TA  - Phys Rev Lett
JT  - Physical review letters
JID - 0401141
EDAT- 2017/12/30 06:00
MHDA- 2017/12/30 06:01
CRDT- 2017/12/30 06:00
PHST- 2017/05/30 00:00 [received]
PHST- 2017/12/30 06:00 [entrez]
PHST- 2017/12/30 06:00 [pubmed]
PHST- 2017/12/30 06:01 [medline]
AID - 10.1103/PhysRevLett.119.243204 [doi]
PST - ppublish
SO  - Phys Rev Lett. 2017 Dec 15;119(24):243204. doi: 10.1103/PhysRevLett.119.243204. 
      Epub 2017 Dec 15.