529 research outputs found
Phase Space Manipulation of Cold Free Radical OH Molecules
We report bunching, slowing, and acceleration of a supersonically cooled beam
of diatomic hydroxyl radicals (OH). \textit{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.Comment: 5 pages, 4 color figure
Spectroscopy of a synthetic trapped ion qubit
has been identified as an attractive ion for quantum
information processing due to the unique combination of its spin-1/2 nucleus
and visible wavelength electronic transitions. Using a microgram source of
radioactive material, we trap and laser-cool the synthetic = 133
radioisotope of barium II in a radio-frequency ion trap. Using the same, single
trapped atom, we measure the isotope shifts and hyperfine structure of the and
electronic transitions that are needed
for laser cooling, state preparation, and state detection of the clock-state
hyperfine and optical qubits. We also report the
electronic transition isotope shift for
the rare = 130 and 132 barium nuclides, completing the spectroscopic
characterization necessary for laser cooling all long-lived barium II isotopes
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