Dagdigian’s research is concerned primarily with the molecular dynamics of gas-phase collisional phenomena. The theme of this work has to gain an understanding of the potential energy surfaces of interaction and their effect on the motion of the nuclei. This work includes the study of chemical reactions and non-reactive energy transfer processes, particularly those involving small molecular free radicals.

Professor Dagdigian has employed various laser spectroscopic techniques for the study of the dynamics of gas-phase collisional processes and for the sensitive detection of trace concentrations of molecules such as explosives. Areas of research interest include the study of the dynamics of molecular collisional processes, including rotational and vibrational energy transfer, photodissociation, and chemical reactions, involving diatomic and small polyatomic free radicals.