Details
| Original language | English |
|---|---|
| Article number | 033410 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 78 |
| Issue number | 3 |
| Publication status | Published - 11 Sept 2008 |
| Externally published | Yes |
Abstract
Recently, a method to image molecular electronic orbitals using high-order harmonic generation was introduced by Itatani [Nature 432, 876 (2004)]. We show that, while the tomographic reconstruction of general orbitals with arbitrary symmetry cannot be performed with long laser pulses, this becomes possible when extremely short pulses are used. This statement is shown both in a simplified wave-packet picture and more formally within the strong-field approximation. We present an analytical formula for the wave-packet composition of the recollision electron. An alternative reconstruction equation based on momentum matrix elements, rather than on dipole matrix elements, is proposed. We present simulations of the procedure for two-dimensional model systems based on numerical solutions of the time-dependent Schrödinger equation.
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. 78, No. 3, 033410, 11.09.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Molecular orbital tomography using short laser pulses
AU - Van Der Zwan, Elmar V.
AU - Chirilǎ, Ciprian C.
AU - Lein, Manfred
N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/9/11
Y1 - 2008/9/11
N2 - Recently, a method to image molecular electronic orbitals using high-order harmonic generation was introduced by Itatani [Nature 432, 876 (2004)]. We show that, while the tomographic reconstruction of general orbitals with arbitrary symmetry cannot be performed with long laser pulses, this becomes possible when extremely short pulses are used. This statement is shown both in a simplified wave-packet picture and more formally within the strong-field approximation. We present an analytical formula for the wave-packet composition of the recollision electron. An alternative reconstruction equation based on momentum matrix elements, rather than on dipole matrix elements, is proposed. We present simulations of the procedure for two-dimensional model systems based on numerical solutions of the time-dependent Schrödinger equation.
AB - Recently, a method to image molecular electronic orbitals using high-order harmonic generation was introduced by Itatani [Nature 432, 876 (2004)]. We show that, while the tomographic reconstruction of general orbitals with arbitrary symmetry cannot be performed with long laser pulses, this becomes possible when extremely short pulses are used. This statement is shown both in a simplified wave-packet picture and more formally within the strong-field approximation. We present an analytical formula for the wave-packet composition of the recollision electron. An alternative reconstruction equation based on momentum matrix elements, rather than on dipole matrix elements, is proposed. We present simulations of the procedure for two-dimensional model systems based on numerical solutions of the time-dependent Schrödinger equation.
UR - http://www.scopus.com/inward/record.url?scp=51749083697&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.78.033410
DO - 10.1103/PhysRevA.78.033410
M3 - Article
AN - SCOPUS:51749083697
VL - 78
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 3
M1 - 033410
ER -