TY - JOUR
T1 - Wavelength dependence of light diffusion in strongly scattering macroporous gallium phosphide
AU - Peeters, W.H.
AU - Vellekoop, Ivo Micha
AU - Mosk, Allard
AU - Lagendijk, Aart
PY - 2008
Y1 - 2008
N2 - We present time-resolved measurements of light transport through strongly scattering macroporous gallium phosphide at various vacuum wavelengths between 705 nm and 855 nm. Within this range the transport mean free path is strongly wavelength dependent, whereas the observed energy velocity is shown to be independent of the wavelength. We conclude that microscopic resonances, which can strongly slow down the diffusion process in, e.g., granular TiO2, are absent in macroporous gallium phosphide in the wavelength region of concern.
AB - We present time-resolved measurements of light transport through strongly scattering macroporous gallium phosphide at various vacuum wavelengths between 705 nm and 855 nm. Within this range the transport mean free path is strongly wavelength dependent, whereas the observed energy velocity is shown to be independent of the wavelength. We conclude that microscopic resonances, which can strongly slow down the diffusion process in, e.g., granular TiO2, are absent in macroporous gallium phosphide in the wavelength region of concern.
KW - IR-59872
KW - METIS-247293
U2 - 10.1103/PhysRevA.77.035803
DO - 10.1103/PhysRevA.77.035803
M3 - Article
VL - 77
SP - 1
EP - 1
JO - Physical review A : atomic, molecular, and optical physics and quantum information
JF - Physical review A : atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 035803
ER -