Stark-selected beam of ground-state OCS molecules characterized by revivals of impulsive alignment

Abstract

We make use of an inhomogeneous electrostatic dipole field to impart a quantum-state-dependent deflection to a pulsed beam of OCS molecules, and show that those molecules residing in the absolute ground state, $X^1{\Sigma }^{+}$, $|00^{0}0⟩$, J=0, can be separated out by selecting the most deflected part of the molecular beam. Past the deflector, we irradiate the molecular beam by a linearly polarized pulsed nonresonant laser beam that impulsively aligns the OCS molecules. Their alignment, monitored via velocity-map imaging, is measured as a function of time, and the time dependence of the alignment is used to determine the quantum state composition of the beam. We find significant enhancements of the alignment (\costhetasqtd $=0.84$) and of state purity ($>92$%) for a state-selected, deflected beam compared with an undeflected beam.

References in corpus (7)

• Laser-induced alignment and orientation of quantum-state-selected large molecules
• Field-free orientation of CO molecules by femtosecond two-color laser fields
• Quantum-state selection, alignment, and orientation of large molecules using static electric and laser fields
• Electrostatic extraction of cold molecules from a cryogenic reservoir
• Directional States of Symmetric-Top Molecules Produced by Combined Static and Radiative Electric Fields
• Rotational-state-specific guiding of large molecules
• Three-body structure of low-lying 18Ne states

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