Rigorous numerical solutions of Maxwell’s equations are used to show, for what is believed to be the first time, that simple scattering systems composed of two interacting wavelength-sized spheres exhibit a coherent backscattering effect analogous to that observed previously for optically thick discrete random media comprising large numbers of scatterers.
© 1996 Optical Society of America
Michael I. Mishchenko, "Coherent backscattering by two-sphere clusters," Opt. Lett. 21, 623-625 (1996)