Dead crab shells can be used to make cheaper optical components

A team of scientists at the Ateneo de Manila University in the Philippines have succeeded in converting a crab shell extract into a bioplastic that they believe can be used to make optical parts called diffraction gratings.

These are popular parts used in a wide variety of products; they essentially split light into several component colors in different directions, using a well-known property of light. They are commonly used in lasers, wavelength-division multiplexing (a fundamental component of modern telecommunications), and spectrometers.

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