Peacock feathers can be lasers

11 ohjeez 4 7/29/2025, 3:12:33 PM science.org ↗

Comments (4)

xeonmc · 20m ago
Is it actually lasing or is it just fluorescence that is filtered by the microstructure? Definition of lasing entails nonlinear processes, the article seems to only indicate monochromaticity which can be achieved via linear filtering alone?

Additionally, nonlinear processes don’t immediately imply lasing either. It could be anharmonicity causing high order harmonics, which many biological materials will exhibit in response to intense laser sources[0]. In order to actually qualify as leasing you need to have evidence of coherent amplification.

[0] https://en.wikipedia.org/wiki/Two-photon_excitation_microsco...

bell-cot · 2h ago
Could someone update the Evil Overlord List? Peacocks are for-sure cheaper to keep than sharks, and we all know about prioritizing useful expenditures over intimidating decor.
Terr_ · 6m ago
"You may have noticed my garden contains many... intoxicating flowers, Mr. Bond. However your downfall—which you cannot smell—comes from the Peacock Aggression Pheromones, which are being released as we speak."
ge96 · 24m ago
Turns out it wasn't a mating display, it was a heat ray