title: Vibrational dynamics of ions in glass from fifth-order two-dimensional infrared spectroscopy.
abstract: The vibrational dynamics of the first four antisymmetric stretch vibrational levels of azide in an ionic glass have been measured and correlated using a heterodyned fifth-order two-dimensional infrared pulse sequence. By rephasing a two-quantum coherence, a process not possible with third-order spectroscopy, solvent effects on the frequencies and anharmonicities of the potential energy surface are measured. Fifth-order pulse sequences are another step towards precisely controlling vibrational coherence in analogy to the manipulation of spins in NMR but with ultrafast time resolution.
authors.affiliation: Department of Chemistry, University of Wisconsin - Madison, Madison Wisconsin 53706, USA.
authors.forename: Eric C
authors.initials: EC
authors.lastname: Fulmer
authors.forename: Feng
authors.initials: F
authors.lastname: Ding
authors.forename: Prabuddha
authors.initials: P
authors.lastname: Mukherjee
authors.forename: Martin T
authors.initials: MT
authors.lastname: Zanni