Fluor-FOS: Open-source code for optical modeling of multilayer nanocomposite media with fluorescent inclusions

Existing open-source codes, developed primarily for biomedical and sensing applications, cannot handle multi-layer configurations with multiple fluorescent and non-fluorescent (e.g., white filler) inclusions. There is a need for user-friendly open-source tools capable of modeling such complex structures, with applications in radiative cooling, energy harvesting, and solid-state lighting.

Additionally, accommodating uncertainty in optical properties is a valuable feature currently lacking in existing codes. In this paper, we present an open-source code utilizing a Python-based, parallelized Monte Carlo algorithm that handles photon propagation in multi-layer media with fluorescent and non-fluorescent inclusions, simulating the following spectral radiative properties: reflectance, spectral fluorescence, absolute and normalized radiosity, total and different types of absorptances, and transmittance.