Abstract
| Original language | English |
|---|---|
| Journal | Journal of Chemical Physics |
| Volume | 113 |
| Issue number | 18 |
| Pages (from-to) | 7838-7844 |
| ISSN | 0021-9606 |
| DOIs | |
| Publication status | Published - 2000 |
Bibliographical note
Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.Keywords
- FIELDS
- PHOTODISSOCIATION
- MOLECULES
- 2-PULSE LASER CONTROL
Cite this
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Off-resonant vibrational excitation: Orientational dependence and spatial control of photofragments. / Machholm, Mette; Henriksen, Niels Engholm.
In: Journal of Chemical Physics, Vol. 113, No. 18, 2000, p. 7838-7844.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Off-resonant vibrational excitation: Orientational dependence and spatial control of photofragments
AU - Machholm, Mette
AU - Henriksen, Niels Engholm
N1 - Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
PY - 2000
Y1 - 2000
N2 - Off-resonant and resonant vibrational excitation with short intense infrared (IR) laser pulses creates localized oscillating wave packets, but differs by the efficiency of the excitation and surprisingly by the orientational dependence. Orientational selectivity of the vibrational excitation of randomly oriented heteronuclear diatomic molecules can be obtained under simultaneous irradiation by a resonant and an off-resonant intense IR laser pulse: Molecules with one initial orientation will be vibrationally excited, while those with the opposite orientation will be at rest. The orientation-dependent response to the IR fields is due to the anharmonicity of the potential. A subsequent ultraviolet laser pulse in resonance at the outer turning point of the vibrational motion can then dissociate the oscillating molecules, all with the same orientation, leading to spatial control of the photofragment distribution. (C) 2000 American Institute of Physics.
AB - Off-resonant and resonant vibrational excitation with short intense infrared (IR) laser pulses creates localized oscillating wave packets, but differs by the efficiency of the excitation and surprisingly by the orientational dependence. Orientational selectivity of the vibrational excitation of randomly oriented heteronuclear diatomic molecules can be obtained under simultaneous irradiation by a resonant and an off-resonant intense IR laser pulse: Molecules with one initial orientation will be vibrationally excited, while those with the opposite orientation will be at rest. The orientation-dependent response to the IR fields is due to the anharmonicity of the potential. A subsequent ultraviolet laser pulse in resonance at the outer turning point of the vibrational motion can then dissociate the oscillating molecules, all with the same orientation, leading to spatial control of the photofragment distribution. (C) 2000 American Institute of Physics.
KW - FIELDS
KW - PHOTODISSOCIATION
KW - MOLECULES
KW - 2-PULSE LASER CONTROL
U2 - 10.1063/1.1316003
DO - 10.1063/1.1316003
M3 - Journal article
VL - 113
SP - 7838
EP - 7844
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 18
ER -