2023/08/15 by Martin F. Schubert, Schubert, Martin F., Alec M. Hammond +1 · 4 citations
Engineering · Mathematics · #Advanced Antenna and Metasurface Technologies #Algorithm #Computational Physics (physics.comp-ph) #Computational science #Computer science #Convergence (economics) #Diode #Electronic engineering #Engineering #FOS: Physical sciences #Fourier transform #Frequency domain #Inverse #Inverse problem #Light-emitting diode #Materials science #Mathematical analysis #Mathematics #Millimeter-Wave Propagation and Modeling #Modal #Optics (physics.optics) #Optoelectronics #Photonic and Optical Devices #Physics
paper · pdf · doi:10.48550/arxiv.2308.08573
published in arXiv (Cornell University) (Cornell University)
openalex publication_date 2023/08/15 · openalex created_date 2023/08/22 · openalex updated_date 2026/07/28
We present a simulation capability for micro-scale light-emitting diodes (uLEDs) that achieves comparable accuracy to CPU-based finite-difference time-domain simulation but is more than 107 times faster. Our approach is based on the Fourier modal method (FMM) -- which, as we demonstrate, is well suited to modeling thousands of incoherent sources -- with extensions that allow rapid convergence for uLED structures that are challenging to model with standard approaches. The speed of our method makes the inverse design of uLEDs tractable, which we demonstrate by designing a metasurface-enhanced uLED that doubles the light extraction efficiency of an unoptimized device.