Abstract
Rotationless triatomic hydrogen molecules are synthesized in a fast molecular beam. Laser excitation of the molecules allows study of electric field induced ionization as well as autoionization of the ns, np, nd, and of Rydberg series of H3. Two photon ionization and double resonance techniques are applied to determine vibrational frequencies of trihydrogen.
Experimental analysis of the electron-core interaction shows that selective optical excitation of core rotation and core vibration can be achieved concurrent with excitation of the Rydberg electron.
Predissociation of low principal quantum number Rydberg states is observed to lead to the formation of both H2 + H as well as H + H + H fragments.
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Helm, H., Lembo, L.J., Cosby, P.C., Huestis, D.L. (1989). Photoionization and dissociation of the triatomic hydrogen molecule. In: Ehlotzky, F. (eds) Fundamentals of Laser Interactions II. Lecture Notes in Physics, vol 339. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-51430-9_20
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DOI: https://doi.org/10.1007/3-540-51430-9_20
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