English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Understanding radiative transfer in random media like micro/nanoporous andparticulate materials, allows people to manipulate the scattering andabsorption of radiation, as well as opens new possibilities in applicationssuch as imaging through turbid media, photovoltaics and radiative cooling. Astrong-backscattering phase function, i.e., a negative scattering asymmetryparameter $g$, is of great interest which can possibly achieve unusualradiative transport phenomena, for instance, Anderson localization of light.Based on the multipole expansion of Foldy-Lax equations and quasicrystallineapproximation (QCA), we have rigorously derived analytical expressions foreffective propagation constant and scattering phase function for a randomsystem containing dual-dipolar particles, by taking the effect of structuralcorrelations into account. Here we demonstrate that by utilizing structuralcorrelations and the second Kerker condition for a disordered medium composedof randomly distributed silicon nanoparticles, a strongly negative scatteringasymmetry factor ($g\sim-0.5$) for multiple light scattering can be realized inthe near-infrared. As concentration of scattering particles rises, thebackscattering is also enhanced. Moreover, we show that in this circumstance,transport mean free path is largely reduced and even smaller than thatpredicted by independent scattering approximation. We further explored thedependent scattering effects, including the modification of electric andmagnetic dipole excitations and far-field interference effect, both induced bythe structural correlations, for volume fraction of particles up to$f_v\sim0.25$. Our results have profound implications in harnessingmicro/nanoscale radiative transfer through random media.

Achieving strongly negative scattering asymmetry factor in random media composed of dual-dipolar particles