Stefan Hell overcame Abbe’s diffraction limit in light microscopy with the help of a donut-shaped laser beam. Since then, the donut has been abberior’s best friend.

In STED, it de-excites fluorophores and increases resolution, providing us with exciting superresolution images. Even when resolution took another quantum leap with MINFLUX, we could rely on our good old friend, the donut, again. It simply changed jobs. Now it excites fluorophores and enables us to achieve unmatched spatial and temporal resolution with just a view photons. That’s why looking through a donut makes us smile! And they’re yummy too, of course!

Want to know more about our donuts? Read on:

How the donut changed the world