A multi-agentic framework for real-time, autonomous freeform metasurface design
This addresses the problem of time-consuming and computationally demanding metasurface design for researchers and engineers in nanophotonics, representing a novel method rather than an incremental improvement.
The authors tackled the slow and suboptimal design process in nanophotonics by introducing MetaChat, a multi-agentic framework that automates the translation of photonic goals into device layouts, achieving design speeds orders of magnitude faster than conventional methods.
Innovation in nanophotonics currently relies on human experts who synergize specialized knowledge in photonics and coding with simulation and optimization algorithms, entailing design cycles that are time-consuming, computationally demanding, and frequently suboptimal. We introduce MetaChat, a multi-agentic design framework that can translate semantically described photonic design goals into high-performance, freeform device layouts in an automated, nearly real-time manner. Multi-step reasoning is enabled by our Agentic Iterative Monologue (AIM) paradigm, which coherently interfaces agents with code-based tools, other specialized agents, and human designers. Design acceleration is facilitated by Feature-wise Linear Modulation-conditioned Maxwell surrogate solvers that support the generalized evaluation of metasurface structures. We use freeform dielectric metasurfaces as a model system and demonstrate with MetaChat the design of multi-objective, multi-wavelength metasurfaces orders of magnitude faster than conventional methods. These concepts present a scientific computing blueprint for utilizing specialist design agents, surrogate solvers, and human interactions to drive multi-physics innovation and discovery.