Vector Angular Spectrum Model for light travelling in scattering media
arxiv(2024)
Abstract
Strongly scattering media disrupt both the wavefront distribution and the
polarization state of the incident light field. Controlling and effectively
utilizing depolarization effects are crucial for optical applications in highly
scattering environments, such as imaging through dense fog. However, current
simulation models have difficulty simulating the evolution of vector light
fields within scattering media, posing challenges for studying vector light
fields in strongly scattering environments. Here, we propose the Vector Angular
Spectrum (VAS) model for simulating the propagation of vector light fields
within scattering media. By introducing the angular spectrum distribution of
vector light scattering and polarization conversion mechanisms, this model can
simulate the depolarization effects of vector light propagating through
strongly scattering media. The VAS model has also been used to investigate the
focusing of vector scattered light through scattering media. Furthermore, the
simulation results of the model have been validated through experiments. The
proposed VAS model is expected to play a role in the theoretical research of
vector scattered light and optical applications in strongly scattering
environments.
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