Backscattering signals at small grazing angles are important for space vehicle atmospheric reentrance and subsurface radar sensing applications. They are also useful in Fourier-transform infrared grazing-angle microscopy. Recently we performed an experimental study of far-field scattering at small grazing angles, in particular, of enhanced backscattering at grazing angles. For a randomly weak rough dielectric film upon a reflecting metal substrate, a large enhanced backscattering peak was measured. Experimental results are compared with small perturbation theoretical predictions.
© 2002 Optical Society of America
(030.1670) Coherence and statistical optics : Coherent optical effects
(240.6690) Optics at surfaces : Surface waves
(290.1350) Scattering : Backscattering
(290.4210) Scattering : Multiple scattering
(290.5880) Scattering : Scattering, rough surfaces
Zu-Han Gu, I. M. Fuks, and Mikael Ciftan, "Enhanced backscattering at grazing angles," Opt. Lett. 27, 2067-2069 (2002)