Deducing effective light transport parameters in optically thin systems

Abstract

We present an extensive Monte Carlo study on light transport in optically thin slabs, addressing both axial and transverse propagation. We completely characterize the so-called ballistic-to-diffusive transition, notably in terms of the spatial variance of the transmitted/reflected profile. We test the validity of the prediction cast by diffusion theory, that the spatial variance should grow independently of absorption and, to a first approximation, of the sample thickness and refractive index contrast. Based on a large set of simulated data, we build a freely available look-up table routine allowing reliable and precise determination of the microscopic transport parameters starting from robust observables which are independent of absolute intensity measurements. We also present the Monte Carlo software package that was developed for the purpose of this study.

References in corpus (3)

• Localization of ultrasound in a three-dimensional elastic network
• Spatio-temporal visualization of light transport in complex photonic structures
• Exploiting breakdown of the similarity relation for diffuse light transport: simultaneous retrieval of scattering anisotropy and diffusion constant

Cited by in corpus (5)

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• Optimized White Reflectance in Photonic Network Structures
• Diffusion of light in semitransparent media
• Experimental determination of effective light transport properties in fully anisotropic media
• Breakdown of self-similarity in light transport