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Home » Materials » Advanced materials » Symmetric crystals can absorb light asymmetrically

Symmetric crystals can absorb light asymmetrically

30 Jun 2025 Isabelle Dumé
Microscope image of a centrosymmetric crystal
Surprising finding Optical microscope image of a representative crystal that possesses centrosymmetry, yet shows differential absorption of circularly polarized light. The crystal is made of lithium, cobalt, selenium and oxygen, with the cobalt giving rise to its purple colour. (Courtesy: Kendall Kamp/Northwestern University)
Scientists have discovered a centrosymmetric crystal that behaves as though it is chiral – absorbi

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Isabelle Dumé is a contributing editor to Physics World
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