TY - JOUR
T1 - Trajectory-Resolved Coulomb Focusing in Tunnel Ionization of Atoms with Intense, Elliptically Polarized Laser Pulses
AU - Shafir, D.
AU - Soifer, H.
AU - Vozzi, C.
AU - Johnson, A. S.
AU - Hartung, A.
AU - Dube, Z.
AU - Villeneuve, D. M.
AU - Corkum, P. B.
AU - Dudovich, N.
AU - Staudte, A.
N1 - We acknowledge the DAAD, the Minerva foundation, the Israeli Science foundation, and the Crown Center of Photonics for financial support. H. S. is supported by the Adams Fellowship Program of the Israel Academy of Sciences and Humanities.
PY - 2013/7/9
Y1 - 2013/7/9
N2 - In strong-field light-matter interactions, the strong laser field dominates the dynamics. However, recent experiments indicate that the Coulomb force can play an important role as well. In this Letter, we have studied the photoelectron momentum distributions produced from noble gases in elliptically polarized, 800 nm laser light. By performing a complete mapping of the three-dimensional electron momentum, we find that Coulomb focusing significantly narrows the lateral momentum spread. We find a surprisingly sensitive dependence of Coulomb focusing on the initial transverse momentum distribution, i.e., the momentum at the moment of birth of the photoelectron. We also observe a strong signature of the low-energy structure in the above threshold ionization spectrum.
AB - In strong-field light-matter interactions, the strong laser field dominates the dynamics. However, recent experiments indicate that the Coulomb force can play an important role as well. In this Letter, we have studied the photoelectron momentum distributions produced from noble gases in elliptically polarized, 800 nm laser light. By performing a complete mapping of the three-dimensional electron momentum, we find that Coulomb focusing significantly narrows the lateral momentum spread. We find a surprisingly sensitive dependence of Coulomb focusing on the initial transverse momentum distribution, i.e., the momentum at the moment of birth of the photoelectron. We also observe a strong signature of the low-energy structure in the above threshold ionization spectrum.
UR - http://www.scopus.com/inward/record.url?scp=84880109725&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.111.023005
DO - 10.1103/PhysRevLett.111.023005
M3 - مقالة
SN - 0031-9007
VL - 111
JO - Physical review letters
JF - Physical review letters
IS - 2
M1 - 023005
ER -