Details
| Original language | English |
|---|---|
| Pages (from-to) | 113-124 |
| Number of pages | 12 |
| Journal | Journal of Modern Optics |
| Volume | 53 |
| Issue number | 1-2 |
| Publication status | Published - 9 Aug 2006 |
| Externally published | Yes |
Abstract
The generation of high-order harmonics in small diatomic molecules is theoretically investigated with inclusion of the vibrational degree of freedom. The results obtained from the solution of the time-dependent Schrödinger equation for a model H2 molecule are interpreted by analysing the influence of the vibrational motion in the framework of the strong-field approximation. Ionization launches a vibrational wave packet whose motion is correlated with the motion of the continuum electron wave packet. The harmonics are sensitive to a correlation function quantifying the overlap between the vibrational wave packet at the time of recombination and a vibrational target wave packet, i.e. the wave packet for which de-excitation into the ground state is most likely. We show that more intense harmonics are generated in heavier isotopes due to the slower nuclear motion.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Journal of Modern Optics, Vol. 53, No. 1-2, 09.08.2006, p. 113-124.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High-order harmonic generation in vibrating molecules
AU - Chirilǎ, Ciprian C.
AU - Lein, Manfred
N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2006/8/9
Y1 - 2006/8/9
N2 - The generation of high-order harmonics in small diatomic molecules is theoretically investigated with inclusion of the vibrational degree of freedom. The results obtained from the solution of the time-dependent Schrödinger equation for a model H2 molecule are interpreted by analysing the influence of the vibrational motion in the framework of the strong-field approximation. Ionization launches a vibrational wave packet whose motion is correlated with the motion of the continuum electron wave packet. The harmonics are sensitive to a correlation function quantifying the overlap between the vibrational wave packet at the time of recombination and a vibrational target wave packet, i.e. the wave packet for which de-excitation into the ground state is most likely. We show that more intense harmonics are generated in heavier isotopes due to the slower nuclear motion.
AB - The generation of high-order harmonics in small diatomic molecules is theoretically investigated with inclusion of the vibrational degree of freedom. The results obtained from the solution of the time-dependent Schrödinger equation for a model H2 molecule are interpreted by analysing the influence of the vibrational motion in the framework of the strong-field approximation. Ionization launches a vibrational wave packet whose motion is correlated with the motion of the continuum electron wave packet. The harmonics are sensitive to a correlation function quantifying the overlap between the vibrational wave packet at the time of recombination and a vibrational target wave packet, i.e. the wave packet for which de-excitation into the ground state is most likely. We show that more intense harmonics are generated in heavier isotopes due to the slower nuclear motion.
UR - http://www.scopus.com/inward/record.url?scp=84988508046&partnerID=8YFLogxK
U2 - 10.1080/09500340500233636
DO - 10.1080/09500340500233636
M3 - Article
AN - SCOPUS:84988508046
VL - 53
SP - 113
EP - 124
JO - Journal of Modern Optics
JF - Journal of Modern Optics
SN - 0950-0340
IS - 1-2
ER -