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Superconducting microwave cavity towards controlling the motion of polar molecules

TitleSuperconducting microwave cavity towards controlling the motion of polar molecules
Publication TypeJournal Article
Year of Publication2012
AuthorsEnomoto, K, Djuricanin, P, Gerhardt, I, Nourbakhsh, O, Moriwaki, Y, Hardy, W, Momose, T
JournalAPPLIED PHYSICS B-LASERS AND OPTICS
Volume109
Pagination149-157
Date PublishedOCT
ISSN0946-2171
Abstract

We propose the use of superconducting microwave cavities for the focusing and deceleration of cold polar molecular beams. A superconducting cavity with a high quality factor produces a large ac Stark shift in polar molecules, which allow us to efficiently control molecular motion. Our discussion is based on the experimental characterization of a prototype cavity: a lead-tin-coated cylindrical copper cavity, which has a quality factor of 10(6) and tolerates several watts of input power. Such a microwave device provides a powerful way to control molecules not only in low-field-seeking states, but also in high-field-seeking states such as the ground rotational state.

DOI10.1007/s00340-012-5192-5