Initialization and Training of a Surrogate Model

Surrogate models are standalone files in VirtualLab Fusion that can be attached to compatible components (e.g., metalens components) to compute realistic meta-structures. This tutorial describes how to define, train, and use custom surrogate models.

1. Initialize the surrogate document – load the template or start from a compatible component

2. Configure optical parameters – define media, wavelength and incidence angle ranges

3. Configure fabrication parameters – set meta-atom geometry (nanopillars or nanofins) and fix variation parameter space

4. Train the model – run RCWA calculations and generate the neural network

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