Donald H. Levy

TL;DR: In this paper, the authors describe a recent technique which is directed toward overcoming two difficulties which arise when one wishes to study the high resolution spectra of molecules: the first is the necessity of obtaining a sample of the molecules at a temperature which is low enough to prevent thermal dissociation and which contains population of only as many rotational and vibrational levels of the molecular system as can be separately assigned in the spectrum.

TL;DR: The HeI2 van der Waals complex was prepared from a dilute mixture of iodine in helium at a pressure of 100 atm by supersonic expansion through a nozzle into a vacuum as mentioned in this paper.

TL;DR: In this article, the fluorescence excitation spectrum of NO2 was measured in the region 5708-6708 A using a tuneable dye laser as an excitation source.

TL;DR: The electronic spectrum of the amino acid tryptophan has been measured in the environment of a cold, supersonic molecular beam as discussed by the authors, and features characteristic of more volatile indole derivitives, however the region of the spectrum near the origin shows distinctive low frequency structure absent from the simpler indole containing molecules.

TL;DR: In this paper, the product state distribution of the fragment I2* that is produced when an I2-rare gas van der Waals molecule dissociates has been used to measure the binding energies of I2He*, I2Ne*, and I2Ar*.