Inverse Design with the Adjoint Plugin (Deprecated)

The following notebooks demonstrate photonic inverse design in Tidy3D using the tidy3d.plugins.adjoint functionality. Inverse design (adjoint optimization) is the application of gradient-based optimization to define photonic devices in a high-dimensional space. It automates the design process to uncover unintuitive and high-performing designs in a short time frame.

For gradient-free optimization examples, please see the global optimization section.

• Inverse design quickstart
• Jax, automatic differentiation, and adjoint optimization: basics
• Adjoint analysis of a multi-layer slab
• Inverse design optimization of a mode converter
• Multi-objective adjoint optimization
• Inverse design optimization of a waveguide taper
• Inverse design optimization of a compact grating coupler
• Inverse design optimization of a metalens
• Adjoint-based shape optimization of a waveguide bend
• Adjoint optimization of a wavelength division multiplexer
• Parameterized level set optimization of a y-branch
• Inverse design integrated with circuit simulation
• Adjoint inverse design of a quantum emitter light extractor
• Diffractive metasurface inverse design with topology optimization
• Machine learning-based fabrication constraints for inverse design using PreFab