wave propagation in random media

How to distinguish elastically scattered light from Stokes shifted light for solid-state lighting?
M. L. Meretska, A. Lagendijk, H. Thyrrestrup, A. P. Mosk, W. L. Ijzerman, and W. L. Vos
J. Appl. Phys. 119, 093102: 1-9 (2016)

Observation of multifractality at the Anderson localization transition of ultrasound in open three-dimensional media
S. Faez, A. Strybulevych, J. H. Page, A. Lagendijk, and B. A. Van Tiggelen
Phys. Rev. Lett. 103, 1-4 (2009)