Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser

Wunshain Fann, Lewis Rothberg, Mark Roberson, Steve Benson, John Madey, Shahab Etemad, Robert Hamilton Austin

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

Picosecond infrared excitation experiments on acetanilide, an -helix protein analog, indicate that the anomalous 1650-cm-1 band which appears on cooling of acetanilide crystals persists for at least several microseconds following rapid pulsed heating. The ground-state recovery time is 155 psec, consistent with a conventional mode strongly coupled to the phonon bath. We therefore suggest that the unusual temperature-dependent spectroscopy of acetanilide can be accounted for by slightly nondegenerate hydrogen atom configurations in the crystal.

Original languageEnglish (US)
Pages (from-to)607-610
Number of pages4
JournalPhysical review letters
Volume64
Issue number5
DOIs
StatePublished - Jan 1 1990

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser'. Together they form a unique fingerprint.

Cite this