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  Driving rotational transitions in molecules on a chip.

Santambrogio, G., Meek, S. A., Abel, M. J., Duffy, L. M., & Meijer, G. (2011). Driving rotational transitions in molecules on a chip. ChemPhysChem, 12(10), 1799-1807. doi:10.1002/cphc.201001007.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-D320-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-D323-0
Genre: Journal Article

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2172854.pdf (Publisher version), 682KB
 
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Santambrogio, G., Author
Meek, S. A.1, Author              
Abel, M. J., Author
Duffy, L. M. , Author
Meijer, G., Author
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1Research Group of Precision Infrared Spectroscopy, MPI for Biophysical Chemistry, Max Planck Society, ou_2149674              

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 Abstract: Polar molecules in selected quantum states can be guided, decelerated, and trapped using electric fields created by microstructured electrodes on a chip. Herein we explore how transitions between two of these quantum states can be induced while the molecules are on the chip. We use CO (a3Π1, v=0) molecules, prepared in the J=1 rotational level, and induce the J=2[LEFTWARDS ARROW]J=1 rotational transition with narrow-band sub-THz (mm-wave) radiation. First, the mm-wave source is characterized using CO molecules in a freely propagating molecular beam, and both Rabi cycling and rapid adiabatic passage are examined. Then we demonstrate that the mm-wave radiation can be coupled to CO molecules that are less than 50 μm above the chip. Finally, CO molecules are guided in the J=1 level to the center of the chip where they are pumped to the J=2 level, recaptured, and guided off the chip.

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Language(s): eng - English
 Dates: 2011-02-232011
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1002/cphc.201001007
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Title: ChemPhysChem
Source Genre: Journal
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Pages: - Volume / Issue: 12 (10) Sequence Number: - Start / End Page: 1799 - 1807 Identifier: -