Molecular optical spectroscopy with supersonic beams and jets

摘要: Abstract : This account is a description of recent technique which directed toward overcoming two difficulties arise when one wishes to study the high resolution spectra molecules. The first these necessity obtaining sample molecules at temperature low enough prevent thermal dissociation and contains population only as many rotational vibrational levels molecular system can be separately assigned in spectrum. second difficulty lies finding medium will support this without introducing undesirable changes complications A desirable spectroscopic would an ensemble molecules, all particular well-defined quantum state (usually lowest energy allowed state) traveling free space with narrow velocity distribution, sufficiently density so that intermolecular interactions are unimportant. purpose trace progress research application supersonic beams jets solution number problems optical spectroscopy illustrate promise such experiments hold for future work.