Abstract

We have observed the enhanced backscattering of light from a characterized dielectric film deposited upon a glass substrate when the light illuminates the rough surface from the vacuum. The vacuum–dielectric interface is one dimensional, randomly rough, while the dielectric–glass interface is approximately planar. Numerical and experimental studies reveal that the main mechanism responsible for the enhanced backscattering is the constructive interference between two waves that follow reciprocal scattering paths through the dielectric film, which is also strengthened by the multiple scattering from the rough vacuum–dielectric interface.

© 1994 Optical Society of America

Enhanced backscattering from a rough dielectric film on a glass substrate

Zu-Han Gu, Jun Q. Lu, and A. A. Maradudin
J. Opt. Soc. Am. A 10(8) 1753-1764 (1993)

Enhanced backscattering from a free-standing dielectric film

Zu-Han Gu, Jun Q. Lu, Alexei A. Maradudin, and A. Martinez
Appl. Opt. 34(18) 3529-3534 (1995)

Angular correlation function of speckle patterns scattered from a one-dimensional rough dielectric film on a glass substrate

Jun Q. Lu and Zu-Han Gu
Appl. Opt. 36(19) 4562-4570 (1997)

Enhanced backscattering from a rough dielectric film on a reflecting substrate

Jun Q. Lu, A. A. Maradudin, and T. Michel
J. Opt. Soc. Am. B 8(2) 311-318 (1991)

Enhanced backscattering from one-dimensional deterministic surfaces

Michel Josse, François Pincemin, A. A. Maradudin, E. R. Méndez, Jun Q. Lu, and Zu-Han Gu
J. Opt. Soc. Am. A 13(9) 1877-1883 (1996)