How do I calculate the Purcell factor?

Date	Category
2023-12-20 19:58:28	Resonance Finder

You can calculate the Purcell factor from the cavity quality factor and effective mode volume using tidy3d.FieldMonitor and the tidy3d.plugins.resonance.ResonanceFinder plugin, as detailed in this tutorial.

Alternatively, you can calculate the Purcell factor as the ratio between the dipole power emitted in the final device and in the bulk semiconductor using tidy3d.FluxMonitor. Refer to this example for more details on this later approach.