A New Form of Light Spirals Just Like Nautilus Shells and Sunflower Seeds

Learn about the optical rotatum, a newfound structure of light that exhibits a spiral pattern linked with various parts of nature.

By Jack Knudson
Apr 14, 2025 10:00 PMApr 14, 2025 10:03 PM
rotatum-nautilus
The optical rotatum's logarithmic spiral follows a pattern often found in nature, including nautilus shells. (Image Credit: Capasso Lab / Harvard SEAS)

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Patterns exist all around the world, creating unforgettable designs exhibited by organisms and acts of nature. Some of these designs even share surprising connections, like a spiral shape seen in both marine mollusks and a newly discovered structure of light that moves like a vortex. A recent study found that the movement of this light vortex — called an optical rotatum — occurs in a way that is very similar to the Fibonacci sequence, the mathematical concept behind many of nature’s most iconic designs. 

The study, published in Science Advances, shows an unprecedented perspective on how light demonstrates parallels with nature. With its unorthodox movements, the optical rotatum could open new possibilities for matter manipulation. 

New Behavior of Light

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