J Koperski and E S Fry 2006 J. Phys. B: At. Mol. Opt. Phys. 39 S1125 doi:10.1088/0953-4075/39/19/S22
J Koperski1 and E S Fry2
Show affiliationsThe supersonic free-jet expansion technique has been used in different fields of research in physics, physical chemistry and chemistry to study vibrational and rotational molecular structures in ground and excited electronic energy states as well as in cold chemistry to study chemical reactions in a unique environment. The supersonic beam technique, as a widely used method in laser spectroscopy of molecules, exploits a source of monokinetic, rotationally and vibrationally cold molecules, that are very weakly bound in their ground electronic states (van der Waals molecules). In experiments at Jagiellonian University the supersonic free-jet beam serves as a source of ground-state van der Waals objects in studies of neutral–neutral interactions between group 12 metal (M = Zn, Cd, Hg) and noble gas (NG) atoms. Recently, the method has been applied as a source of entangled 199Hg atom pairs in order to test Bell's inequality in an experiment at Texas A&M University.
37.20.+j Atomic and molecular beam sources and techniques
33.20.Vq Vibration-rotation analysis
37.10.Mn Slowing and cooling of molecules
Issue 19 (14 October 2006)
Received 31 March 2006, in final form 23 May 2006
Published 25 September 2006
J Koperski and E S Fry 2006 J. Phys. B: At. Mol. Opt. Phys. 39 S1125
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