Contact: Lyndsay Meyer
The Optical Society
Caption: These are close-up images of the new shrink wrap nanostructures taken with a scanning electron microscope. Each image depicts the shrink wrap's surface with a fixed amount of nickel (5 nm) and different thicknesses of gold in the metal coating. The top is 10 nm thick. The middle is 20 nm thick. The bottom is 30 nm thick. The black arrows in the top image indicate a nanogap.
Credit: Optical Materials Express
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