Exploiting breakdown of the similarity relation for diffuse light transport: simultaneous retrieval of scattering anisotropy and diffusion constant

Abstract

As manifested in the similarity relation of diffuse light transport, it is difficult to assess single scattering characteristics from multiply scattered light. We take advantage of the limited validity of the diffusion approximation of light transport and demonstrate, experimentally and numerically, that even deep into the multiple scattering regime, time-resolved detection of transmitted light allows simultaneous assessment of both single scattering anisotropy and scattering mean free path, and therefore also macroscopic parameters like the diffusion constant and the transport mean free path. This is achieved via careful assessment of early light and matching against Monte Carlo simulations of radiative transfer.

References in corpus (4)

• Direct determination of the transition to localization of light in three dimensions
• Disordered, strongly scattering porous materials as miniature multipass gas cells
• Determination of the diffusion constant using phase-sensitive measurements
• Observation of anisotropic diffusion of light in compacted granular porous materials

Cited by in corpus (8)

• Mean path length invariance in multiple light scattering
• Path length enhancement in disordered media for increased absorption
• Spatio-temporal visualization of light transport in complex photonic structures
• Walk dimension for light in complex disordered media
• Deducing effective light transport parameters in optically thin systems
• Diffusion of light in semitransparent media
• Experimental determination of effective light transport properties in fully anisotropic media
• Graph model for multiple scattering in lithium niobate on insulator integrated photonic networks