Publications

High performance coupled opto-chemical simulation of gradient-index light transport in vat photopolymerization

Aarab, M., Geers, M. G. D., Remmers, J. J. C.

SPIE Photonics Europe, 2026

Introduces bi-directionally coupled light and photocuring in vat photopolymerization. Simulation results reveal evolving refractive index causes meaningful differences in curing and intensity fields compared with conventional one-way coupled approaches.

Fast Hessian-free finite element ray tracing method for light transport in gradient-index media

Aarab, M., Geers, M. G. D., Remmers, J. J. C.

Optics Express, 2026

Presents a ray-tracing engine for coupled multi-physics light transport through volumetric participating media with gradient optical properties. Rays are traced through a finite element domain for elegant multiphysics coupling, with analytical path validation and efficient scaling under mesh refinement.

High-resolution additive manufacturing for 3D multifunctional microelectronic devices

Sol, J. A. H. P., Aarab, M., van Grondelle, W., Walsh, D. R., Suijdendorp, S. C. E., Remmers, J. J., Akkerman, H. B.

SPIE Photonics West, 2025

Presents heterogeneous assembly of microelectronics using hybrid vat photopolymerization, component placement, and printed conductive tracks. The study evaluates geometric accuracy through combined experimental and numerical ray-tracing analyses.

Development of optimal L-PBF process parameters using an accelerated discrete element simulation framework

Aarab, M., Dorussen, B. J. A., Poelsma, S. S., Remmers, J. J. C.

Granular Matter, 2024

Produced an optimized AlSi10Mg parameter set with only 5 days of compute using a GPU-accelerated digital twin of the L-PBF process. Experiments show that parts produced with the optimized settings are of high quality.

Related visualisation (Blender Python API): YouTube