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

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 نشر من قبل Sebastiaan Y.T. van de Meerakker
 تاريخ النشر 2005
  مجال البحث فيزياء
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We report on the production of a pulsed molecular beam of metastable NH ($a ^1Delta$) radicals and present first results on the Stark deceleration of the NH ($a ^1Delta, J=2, MOmega=-4$) radicals from 550 m/s to 330 m/s. The decelerated molecules are excited on the spin-forbidden $A ^3Pi leftarrow a ^1Delta$ transition, and detected via their subsequent spontaneous fluorescence to the $X ^3Sigma^{-}, v=0$ 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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