Free-electron laser based infrared action spectroscopy: methods and applications

Jos Oomens (FELIX Laboratory, Radboud University, Nijmegen, The Netherlands) presents this seminar as part of the Technologies for Chemical Measurement Series.

The FELIX free-electron laser facility provides intense laser radiation that is tunable across infrared wavelengths from 3 to >150 micron. It is particularly useful for IR spectroscopic investigations of samples that are too dilute to study with conventional (FT)IR spectrometers. I
will introduce the facility and how to get access to beam time. I will then discuss several typical applications, focusing on infrared ion spectroscopy (IRIS), which constitutes the powerful myriad of mass spectrometry with IR spectroscopy. Free-electron lasers have been particularly instrumental in the renaissance of IRIS over the past two decades and recent examples of how IRIS is applied in studies that range from fundamental ion chemistry [1]to astrophysics [2] and bio-analytical chemistry [3] will be presented.

References

1. van Tetering et al. Comm. Chem. 7, 30 (2024)
2. Palotás et al. Nature Astron. 4, 240 (2020)
3. Martens et al. Anal. Chim. Acta 1093, 1 (2020)

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