Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Artificial intelligence deployment in photonics has spawned much research activity during 2020, but optimism must be balanced by realism. This month we celebrate the advances in the field with a focus issue.