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Optical physics

Optical physics

Metasurfaces make a single-shot polarization imaging system

21 May 2024 Isabelle Dumé
Three images of a Chrysina gloriosa beetle. The two circularly-polarized light images are bathed in green light and show different patterns on the beetle's shell. The Mueller Matrix image is black and white and shows a pattern of characteristic lines that also appears in the polarized light images.
Seeing beetles in a different light: a) The Chrysina gloriosa beetle displays a distinctive response to circularly polarized light, as shown in standard digital camera images of the beetle's shell when illuminated by RCP light (top) and LCP light (bottom). b) A raw image of the chiral beetle captured using the Mueller Matrix imaging system developed in this study, showing spatially resolved features such as the size and shape of the shell and the characteristic lines on it. (Courtesy: Aun Zaidi/Harvard SEAS)
The polarization of light scattered off an object provides a treasure trove of information. Techniqu

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Isabelle Dumé is a contributing editor to Physics World
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