Production and deceleration of a pulsed beam of metastable NH ($a ^1Δ$) radicals

Details Production and deceleration of a pulsed beam of metastable NH ($a ^1Δ$) radicals Production and deceleration of a pulsed beam of metastable NH ($a ^1Δ$) radicals

2005-12-21

arxiv.org/abs/physics/0512194v2

J. Phys. B 39, S1077-S1084 (2006)

Physics

Atomic Physics

11 pages, 4 figures, v2: fixed author name for web-abstract, no changes to manuscript

Scientific paper

10.1088/0953-4075/39/19/S18

We report on the production of a pulsed molecular beam of metastable NH ($a ^1\Delta$) radicals and present first results on the Stark deceleration of the NH ($a ^1\Delta, J=2, M\Omega=-4$) radicals from 550 m/s to 330 m/s. The decelerated molecules are excited on the spin-forbidden $A ^3\Pi \leftarrow a ^1\Delta$ transition, and detected via their subsequent spontaneous fluorescence to the $X ^3\Sigma^{-}, v"=0$ ground-state. These experiments demonstrate the feasibility of our recently proposed scheme [Phys. Rev. A 64 (2001) 041401] to accumulate ground-state NH radicals in a magnetic trap.

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