Opto-Electrical Cooling of Polar Molecules (2009)
Zeppenfeld, M., Motsch, M., Pinkse, P. W. H., Rempe, G.
We present an opto-electrical cooling scheme for polar molecules based on a Sisyphus-type cooling cycle in suitably tailored electric trapping fields. Dissipation is provided by spontaneous...
Electron collisions with 4He2+ at the TSR (2009)
Buhr, Henrik, Pedersen, H. B., Altevogt, S., Adrianarijaona, V. M., Kreckel, Holger, Lammich, L., ...
Cold guided beams of water isotopologs (2008)
Motsch, M., Van Buuren, L. D., Sommer, C., Zeppenfeld, M., Rempe, G., Pinkse, P. W. H.
Electrostatic velocity filtering and guiding is an established technique to produce high fluxes of cold polar molecules. In this paper we clarify different aspects of this technique by comparing...
Electrostatic extraction of cold molecules from a cryogenic reservoir (2008)
Van Buuren, L. D., Sommer, C., Motsch, M., Pohle, S., Schenk, M., Bayerl, J., ...
We present a method which delivers a continuous, high-density beam of slow and internally cold polar molecules. In our source, warm molecules are first cooled by collisions with a cryogenic helium...
Doppler-Free Spectroscopy of Weak Transitions: An Analytical Model Applied to Formaldehyde (2007)
Zeppenfeld, M., Motsch, M., Pinkse, P. W. H., Rempe, G.
Experimental observation of Doppler-free signals for weak transitions can be greatly facilitated by an estimate for their expected amplitudes. We derive an analytical model which allows the...
Effects of molecular rotation in low-energy electron collisions of H3+ (2006)
Wolf, A., Kreckel, H., Motsch, M., Mikosch, J., Glosik, J., Plasil, R., ...
Kreckel, H., Motsch, M., Mikosch, J., Glosik, J., Plasil, R., Altevogt, S., ...
The energy-resolved rate coefficient for the dissociative recombination (DR) of H+3 with slow electrons has been measured by the storage-ring method using an ion beam produced from a radiofrequency...