High-performance hybrid time/frequency-domain topology optimization for large-scale photonics inverse design
Abstract
We present a photonics topology optimization (TO) package capable of addressing a wide range of practical photonics design problems, incorporating robustness and manufacturing constraints, which can scale to large devices and massive parallelism. We employ a hybrid algorithm that builds on a mature time-domain (FDTD) package Meep to simultaneously solve multiple frequency-domain TO problems over a broad bandwidth. This time/frequency-domain approach is enhanced by new filter-design sources for the gradient calculation and new material-interpolation methods for optimizing dispersive media, as well as by multiple forms of computational parallelism. The package is available as free/open-source software with extensive tutorials and multi-platform support.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 28, 2022
- Source ID
- 10.1364/oe.442074
Entities
People
- Alec M. Hammond
- Ardavan Oskooi
- Mo Chen
- Stephen E. Ralph
- Steven G. Johnson
- Zin Lin
Organizations
- Army Research Office
- Georgia Tech
- Massachusetts Institute of Technology
- Simons Foundation