Dynamic field-free orientation of polar molecules by intense two-color femtosecond laser pulses
Author(s)
Litvinyuk, IV
De, S
Ray, D
Johnson, NG
Bocharova, I
Magrakvelidze, M
Anis, F
Esry, BD
Cocke, L
Znakovskaya, I
Kling, MF
Griffith University Author(s)
Year published
2009
Metadata
Show full item recordAbstract
We present the first experimental observation of dynamic field-free orientation of a heteronuclear molecule (CO) induced by intense two color (800 and 400 nm) femtosecond laser pulses. We have used the two color pulse as pump to orient the molecules and a more intense 800 nm pulse as probe to measure the angular distributions. In addition to dynamic alignment seen in time dependence of <cos2?>, we observe clear orientation in <cos?> traces, which revives with the rotational period and can be reversed by changing the relative phase of the two colors. We studied the dependence of degree of orientation on the pump pulse ...
View more >We present the first experimental observation of dynamic field-free orientation of a heteronuclear molecule (CO) induced by intense two color (800 and 400 nm) femtosecond laser pulses. We have used the two color pulse as pump to orient the molecules and a more intense 800 nm pulse as probe to measure the angular distributions. In addition to dynamic alignment seen in time dependence of <cos2?>, we observe clear orientation in <cos?> traces, which revives with the rotational period and can be reversed by changing the relative phase of the two colors. We studied the dependence of degree of orientation on the pump pulse intensity, and compared the results with theoretical calculations.
View less >
View more >We present the first experimental observation of dynamic field-free orientation of a heteronuclear molecule (CO) induced by intense two color (800 and 400 nm) femtosecond laser pulses. We have used the two color pulse as pump to orient the molecules and a more intense 800 nm pulse as probe to measure the angular distributions. In addition to dynamic alignment seen in time dependence of <cos2?>, we observe clear orientation in <cos?> traces, which revives with the rotational period and can be reversed by changing the relative phase of the two colors. We studied the dependence of degree of orientation on the pump pulse intensity, and compared the results with theoretical calculations.
View less >
Conference Title
Journal of Physics: Conference Series
Volume
194
Issue
3
Subject
Atomic and molecular physics
Condensed matter physics
Other physical sciences