Nicholas R Walker

Spectroscopy exploits the emission, absorption and scattering of electromagnetic radiation for the study of molecules and materials. My research applies microwave spectroscopy to the study of molecular structure in (primarily) metal-containing molecules and the chemistry occurring in plasma. Microwave frequencies (between 3 and 300 GHz) are associated with transitions between rotational energy levels in molecules which, in turn, depend sensitively on details of molecular structure.