Fast Multichannel Inverse Design through Augmented Partial Factorization.

ABSTRACT: Computer-automated design and discovery have led to high-performance nanophotonic devices with diverse functionalities. However, massively multichannel systems such as metasurfaces controlling many incident angles and photonic-circuit components coupling many waveguide modes still present a challenge. Conventional methods require M_in forward simulations and M_in adjoint simulations-2M_in simulations in total-to compute the objective function and its gradient for a design involving the response to M_in input channels. Here, we develop a formalism that uses the recently proposed augmented partial factorization method to obtain both the objective function and its gradient for a massively multichannel system in a single or a

SUBMITTER: Li S 

PROVIDER: S-EPMC10885196 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature