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Making the Best of Mixed-Field Orientation of Polar Molecules: A Recipe for Achieving Adiabatic Dynamics in an Electrostatic Field Combined with Laser Pulses

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons21772

Küpper,  Jochen
Center for Free-Electron Laser Science, DESY;
University of Hamburg;
Molecular Physics, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21529

Friedrich,  Bretislav
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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e193001.pdf
(Publisher version), 383KB

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Citation

Nielsen, J. H., Stapelfeldt, H., Küpper, J., Friedrich, B., Omiste, J., & Gonzales-Ferez, R. (2012). Making the Best of Mixed-Field Orientation of Polar Molecules: A Recipe for Achieving Adiabatic Dynamics in an Electrostatic Field Combined with Laser Pulses. Physical Review Letters, 108(19): 193001. doi:10.1103/PhysRevLett.108.193001.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-4406-7
Abstract
We have experimentally and theoretically investigated the mixed-field orientation of rotational-stateselected OCS molecules and achieved strong degrees of alignment and orientation. The applied moderately intense nanosecond laser pulses are long enough to adiabatically align molecules. However, in combination with a weak dc electric field, the same laser pulses result in nonadiabatic dynamics of the mixed-field orientation. These observations are fully explained by calculations employing both adiabatic and nonadiabatic (time-dependent) models