Skip to main content
Article

Direct Observation of Optical Precursors in a Region of Anomalous Dispersion

1 April 2006

Abstract

We create optical precursors by propagating a step-modulated optical pulse through a linear resonant dielectric absorber. The field emerging from the dielectric consists of a several-nanosecond-long spike with near 100% transmission, which decays to a constant value expected from Beer’s law. This high transmission spike might be useful for imaging applications requiring penetrating optical radiation. We compare our observations to two different theories, revealing that the spike consists of both the Sommerfeld and Brillouin precursors.


Files

File nameDate UploadedVisibilityFile size
Main File
18 Mar 2020
Public
212 kB