Phase space manipulation of cold free radical OH molecules

Phys Rev Lett. 2003 Dec 12;91(24):243001. doi: 10.1103/PhysRevLett.91.243001. Epub 2003 Dec 10.


We report bunching, slowing, and acceleration of a supersonically cooled beam of diatomic hydroxyl radicals (OH). In situ observation of laser-induced fluorescence along the beam propagation path allows for detailed characterization of longitudinal phase-space manipulation of OH molecules through the Stark effect by precisely sequenced inhomogeneous electric fields.