PC-GROM: A Certificate-Preserving Compiler Architecture for Programmable Electromagnetic Materials and Metasurfaces

PC-GROM is an open, reproducible framework for the specification, compilation, certification, and verification of engineered electromagnetic materials and metasurfaces. It introduces a certificate-preserving workflow in which a desired electromagnetic response is translated into a physically admissible constitutive target, compiled against a declared realizable material codebook, evaluated using passivity-consistent electromagnetic models, checked against finite-thickness Maxwell physics, and recorded together with machine-readable evidence describing what was requested, corrected, realized, and verified.

The framework is designed to address a central challenge in metamaterials, metasurfaces, photonics, and computational electromagnetics: the lack of a common abstraction connecting high-level electromagnetic functionality to realizable structures, manufacturing constraints, model validity, and reproducible verification. PC-GROM approaches this problem as a material compilation architecture rather than as a single inverse-design algorithm.

The release includes mathematical formulations, reference implementations, deterministic numerical audits, material and geometry compilers, passive/reciprocal constitutive projection, anisotropic laminate models, sheet and finite-slab electromagnetic solvers, approximation-validity gates, challenge-response attestation methods, machine-readable schemas, reproducibility infrastructure, documentation, publication materials, and test suites.

A key feature is compositional certification. Each stage produces explicit evidence that can be propagated through the design workflow. Requested constitutive responses are projected into the modeled reciprocal-passive domain; realizations are selected from immutable declared libraries; reduced sheet models are checked against finite-thickness electromagnetic calculations; and the resulting compilation record can be associated with post-fabrication electromagnetic measurements. This creates a path toward interoperable electromagnetic material libraries, foundry-specific process design kits, certified metasurface components, reproducible procurement specifications, and independently auditable material designs.

The reference release contains deterministic numerical verification covering tens of thousands of constitutive, geometry, projection, scattering, and passivity checks, together with end-to-end compilation examples and automated tests. These results establish internal mathematical and computational consistency of the framework. They do not constitute experimental fabrication validation, industrial qualification, or proof of cryptographic unclonability. Those are explicitly treated as future experimental and standardization objectives.

PC-GROM is intended as a research foundation for programmable electromagnetic matter, metasurface design, RF and microwave engineering, millimetre-wave and terahertz systems, photonics, computational materials design, scientific software, electromagnetic manufacturing, metrology, and reproducible research. Its broader objective is to enable electromagnetic functionality to be represented as a portable, verifiable specification that can be compiled into different physical implementations while preserving clearly defined physical and engineering constraints.

This archive provides a citable, versioned research record of the PC-GROM framework, including source code, manuscript materials, benchmark data, audit outputs, schemas, documentation, and release metadata.