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Contact: Lyndsay Meyer
lmeyer@osa.org
202-416-1435
The Optical Society

SEM Image of the Opal's Surface

Caption: This is a closeup of the surface of the opal, taken with a scanning electron microscope. The ethanol-responsive gel used in the device would fill the spaces between the rows of regularly spaced nanoparticles that comprise the opal.

Credit: Riccardo Pernice, Università degli Studi di Palermo

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