TY - JOUR
T1 - Suppression of photoionization by a static field
AU - Gilary, Ido
AU - Sajeev, Yesodharan
AU - Ciappina, Marcelo F.
AU - Croy, Alexander
AU - Goletz, Christoph M.
AU - Klaiman, Shachar
AU - Sindelka, Milan
AU - Winter, Martin
AU - Wustmann, Waltraut
AU - Moiseyev, Nimrod
PY - 2008/10/17
Y1 - 2008/10/17
N2 - The dc field Stark effect is studied theoretically for atoms in high intensity laser fields. We prove that the first-order perturbation corrections for the energy and photoionization rate vanish when the dc field strength serves as a perturbational strength parameter. Our calculations show that by applying a dc field in the same direction as the polarization direction of the ac field, the photoinduced ionization rate is almost entirely suppressed. This suppression is attributed to changes in the phase shift of the continuum atomic wave functions which can be controlled by the dc field.
AB - The dc field Stark effect is studied theoretically for atoms in high intensity laser fields. We prove that the first-order perturbation corrections for the energy and photoionization rate vanish when the dc field strength serves as a perturbational strength parameter. Our calculations show that by applying a dc field in the same direction as the polarization direction of the ac field, the photoinduced ionization rate is almost entirely suppressed. This suppression is attributed to changes in the phase shift of the continuum atomic wave functions which can be controlled by the dc field.
UR - http://www.scopus.com/inward/record.url?scp=55049118427&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.101.163002
DO - 10.1103/PhysRevLett.101.163002
M3 - 文章
AN - SCOPUS:55049118427
SN - 0031-9007
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
M1 - 163002
ER -