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Journal Article

Trapping molecules on a chip.

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Meek,  S. A.
Research Group of Precision Infrared Spectroscopy, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Meek, S. A., Conrad, H., & Meijer, G. (2009). Trapping molecules on a chip. Science, 324(5935), 1699-1702. doi: 10.1126/science.1175975.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-D192-2
Abstract
Magnetic trapping of atoms on chips has recently become straightforward, but analogous trapping of molecules has proved to be challenging. We demonstrated trapping of carbon monoxide molecules above a chip using direct loading from a supersonic beam. Upon arrival above the chip, the molecules are confined in tubular electric field traps ~20 micrometers in diameter, centered 25 micrometers above the chip, that move with the molecular beam at a velocity of several hundred meters per second. An array of these miniaturized moving traps is brought to a standstill over a distance of only a few centimeters. After a certain holding time, the molecules are accelerated off the chip again for detection. This loading and detection methodology is applicable to a wide variety of polar molecules, enabling the creation of a gas-phase molecular laboratory on a chip.