We report on a new experimental method for enhanced backscattering spectroscopy (EBS) of strongly scattering media over a bandwidth from 530-1000 nm. The instrument consists of a supercontinuum light source and an angle-dependent detection system using a fiber-coupled grating spectrometer. Using a combination of two setups, the backscattered intensity is obtained over a large angular range and using circularly polarized light. We present broadband EBS of a TiO2 powder and of a strongly scattering porous GaP layer. In combination with theoretical model fits, the EBS system yields the optical transport mean free path over the available spectral window.

OSA
dx.doi.org/10.1364/OE.16.001222
Opt. Express

Muskens, O. L, & Lagendijk, A. (2008). Broadband enhanced backscattering spectroscopy of strongly scattering media. Opt. Express, 16(2), 1222–1231. doi:10.1364/OE.16.001222