1,721,094 research outputs found
Hyperuniform disordered structures for selective solar and solar-thermal absorbers
No full textWe explore the ability of hyperuniform disordered structures to enhance light absorption in thin-film solar cells architectures and perform full electromagnetic wave simulations that unveil light trapping techniques capable to attain large absorption enhancements up 85% over the visible spectrum. We predicate this enhancement to the interplay between two key physical phenomena: ultimate control over the light diffraction via a hyperuniformly-patterned surface layer which results in a highly efficient coupling of light to the quasi-guided modes of the absorbing silicon film and a concomitant minimisation of the reflection losses atop of the solar absorber. Our experimental results further validate this approach, showcasing an impressive 65% enhancement in solar light absorption in a freely suspended 1-μm c-Si membrane across the spectral range from 400 to 1050nm. We also explore applications of hyperuniform disordered architectures to high-efficiency solar-thermal absorbers
Local Self-Uniformity in Photonic Networks
No full textComputer simulationsDataset accompanying article with the same title. | Version:
Light confinement in hyperuniform photonic slabs: High-Q cavities and low-loss waveguides
No full textUsing finite-difference-time-domain and band-structure simulations, we demonstrate efficient confinement of TE-polarized radiation and high-Q optical-cavities and low-loss waveguides in planar hyperuniform-disordered (HUD) architectures based on a design strategy that has potential to be a general purpose platform for optical microcircuits. © OSA 2015
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