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Spectroscopy in ion traps

For the spectroscopy of charged molecules, ion trap setups can be used. They offer the advantages of cooling to cryogenic temperatures and mass selection. In this experiment, the linear molecular cation HCCCO+ is investigated by its C-C stretching in the 5μm region. For this, a novel technique, called leak-out-spectroscopy (LOS), is applied. You can find more information in the PDF "Molecular spectroscopy using ion traps".

Extended literature:

  • Schmid, P. C., Asvany, O., Salomon, T., Thorwirth, S., & Schlemmer, S. (2022). Leak-Out Spectroscopy, A Universal Method of Action Spectroscopy in Cold Ion Traps. In The Journal of Physical Chemistry A (Vol. 126, Issue 43, pp. 8111–8117). American Chemical Society (ACS). DOI

  • Asvany, O., & Schlemmer, S. (2021). Rotational action spectroscopy of trapped molecular ions. In Physical Chemistry Chemical Physics (Vol. 23, Issue 47, pp. 26602–26622). Royal Society of Chemistry (RSC). DOI

  • Asvany, O., Brünken, S., Kluge, L., & Schlemmer, S. (2013). COLTRAP: a 22-pole ion trapping machine for spectroscopy at 4 K. In Applied Physics B (Vol. 114, Issues 1–2, pp. 203–211). Springer Science and Business Media LLC. DOI


Oskar Asvany (