infrared multiphoton dissociation

initialism: IRMPD
https://doi.org/10.1351/goldbook.12433
Dissociation of a reactant ion as a result of the absorption of multiple infrared photons.
Source:
PAC, 2013, 85, 1515. (Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1550 [Terms] [Paper]