Resonance enhanced two-photon spectroscopy of magnetically trapped atomic hydrogen

P. W.H. Pinkse, A. Mosk, M. Weidemüller, M. W. Reynolds, T. W. Hijmans, J. T.M. Walraven, C. Zimmermann

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Abstract

We report on the first results with resonance enhanced two-photon spectroscopy of magnetically trapped atomic hydrogen, exciting the transition from the 1S ground state to the 3S or the 3D state. The spectroscopic method introduces tunable transparency to resonant optical studies of cold dense gases. It combines sensitivity (due to the near resonant 2P state) with high resolution (in principle limited only by the 3S state lifetime), making it a precision tool for optical investigation of ultracold H gas. To demonstrate its potential, the dynamic evolution of H gas during evaporative cooling is quantitatively investigated by analysis of two-photon absorption spectra.

Original languageEnglish
Pages (from-to)2423-2426
Number of pages4
JournalPhysical review letters
Volume79
Issue number13
DOIs
Publication statusPublished - 29 Sep 1997
Externally publishedYes

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    Pinkse, P. W. H., Mosk, A., Weidemüller, M., Reynolds, M. W., Hijmans, T. W., Walraven, J. T. M., & Zimmermann, C. (1997). Resonance enhanced two-photon spectroscopy of magnetically trapped atomic hydrogen. Physical review letters, 79(13), 2423-2426. https://doi.org/10.1103/PhysRevLett.79.2423