Details
| Original language | English |
|---|---|
| Article number | 013405 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 80 |
| Issue number | 1 |
| Publication status | Published - 6 Aug 2009 |
Abstract
We analyze the orientation dependence of harmonic amplitudes and phases from laser driven H2+. We use the Lewenstein model, with and without employing the saddle-point approximation for the summation over electron momenta. This means that the direction of the electron motion is not necessarily restricted to the laser polarization axis in contrast to previous implementations. The model predicts smooth phase jumps by almost π in the orientation dependence. This demonstrates that the smoothness can be explained without Coulomb effects, but these may be relevant for the size of the phase jumps observed in recent experiments.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 80, No. 1, 013405, 06.08.2009.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Explanation for the smoothness of the phase in molecular high-order harmonic generation
AU - Chirilä, Ciprian C.
AU - Lein, Manfred
N1 - Funding information:. This research was supported by Minsitry of Research and Technology and Higher Education Indonesia.
PY - 2009/8/6
Y1 - 2009/8/6
N2 - We analyze the orientation dependence of harmonic amplitudes and phases from laser driven H2+. We use the Lewenstein model, with and without employing the saddle-point approximation for the summation over electron momenta. This means that the direction of the electron motion is not necessarily restricted to the laser polarization axis in contrast to previous implementations. The model predicts smooth phase jumps by almost π in the orientation dependence. This demonstrates that the smoothness can be explained without Coulomb effects, but these may be relevant for the size of the phase jumps observed in recent experiments.
AB - We analyze the orientation dependence of harmonic amplitudes and phases from laser driven H2+. We use the Lewenstein model, with and without employing the saddle-point approximation for the summation over electron momenta. This means that the direction of the electron motion is not necessarily restricted to the laser polarization axis in contrast to previous implementations. The model predicts smooth phase jumps by almost π in the orientation dependence. This demonstrates that the smoothness can be explained without Coulomb effects, but these may be relevant for the size of the phase jumps observed in recent experiments.
UR - http://www.scopus.com/inward/record.url?scp=68549132549&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.80.013405
DO - 10.1103/PhysRevA.80.013405
M3 - Article
AN - SCOPUS:68549132549
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 1
M1 - 013405
ER -