We report the experimental study of the enhanced backscattering from a random rough surface through a laser dye-doped polymer. The sample is a slice of pyrromethene-doped polymer coupled with a two-dimensional rough gold layer with a large slope. When the sample is illuminated with an <i>s</i>-polarized He–Ne laser and pumped by a cw argon-ion laser, amplified backscattering is observed. The enhanced backscattering peak increases sharply and its width narrows for a sample with low dielectric constant |∊<sub>2</sub>|.
© 2000 Optical Society of America
(030.0030) Coherence and statistical optics : Coherence and statistical optics
(290.1350) Scattering : Backscattering
(290.5820) Scattering : Scattering measurements
(290.5880) Scattering : Scattering, rough surfaces
Zu-Han Gu and G. D. Peng, "Amplification of enhanced backscattering from a dye-doped polymer bounded by a rough surface," Opt. Lett. 25, 375-377 (2000)