Frontiers in OpticsObservation of the Sommerfeld PrecursorHeejeong Jeong, Andrew M. C. Dawes, Daniel J. GauthierPublished Jan 1, 2005• 1 citationPublisherAbstractWe study the generation of optical precursors when a step-modulated optical pulse propagates through a linear resonant absorber. The Sommerfeld precursor is the dominant part of the transmitted field, and experiences essentially no absorption.DOI10.1364/fio.2005.jtuf6