3D Ray Tracing & Microlens Simulation

Advanced Ray Tracing and Microlens Design

Ray Tracing in 3D Structures

OghmaNano’s advanced 3D ray tracing module allows you to model light propagation, scattering, and extraction in complex device architectures — from OLEDs and micro-LEDs to photovoltaic modules and custom optical assemblies. By combining fast polygon-based rendering with accurate wavelength-dependent material properties, you can analyse how device geometry, refractive index profiles, and surface structures affect optical performance.

Key Features:

Full 3D modelling of light generation, propagation, reflection, refraction, and absorption within device layers.

Photon escape probability calculated as a function of wavelength and viewing angle.

Integration with OghmaNano’s material database for wavelength-dependent n and k values to ensure spectrally accurate simulations.

Extensive emission spectra database with easy import of custom spectral data.

Determine RGB colour coordinates of emitted light as a function of viewing angle.

Support for multiple emission layers to model multi-colour and white-light devices.

Simulation of microlenses, diffractive elements, and textured surfaces to enhance light extraction and coupling efficiency.

Import arbitrary device geometries from common CAD formats (.obj, .stl) for complex lens and housing designs.

Acceleration structures (AABB/BVH) for rapid ray–geometry intersection testing, enabling large-scale simulations with millions of rays.

Monte Carlo ray tracing for accurate statistical evaluation of luminance, irradiance, and efficiency.

High-performance core written in a low-level language for maximum speed, even on modest hardware.

Direct integration with OghmaNano’s drift–diffusion solvers, allowing optical results to be used as input for electrical simulations.

Try a ray-tracing example

OghmaNano includes a three-dimensional optical ray-tracing engine for modelling light propagation through lenses, structured surfaces, and optoelectronic devices. The pages below are self-contained examples you can run directly.

Ray-tracing feature tour (teapot demo) — a quick overview of sources, geometry, and detectors
Cooke triplet lens — a classic multi-element imaging lens
Modern long-focal-length prime lens (200 mm) — full optical system modelling
Reflection from a rough film (AFM-derived surface) — scattering and surface-roughness effects
Light escape from a rough film — escape-cone and extraction behaviour
Microlens demo: optical filtering (confocal analogy) — focusing, collection, and spatial filtering

Building your own setup? Start with: light sources, optical detectors, and the S-plane editor.