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Simple nanoantenna separates colors of light

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Ashley N. Paddock, ashley.paddock@photonics.com

A new nanoantenna directs red and blue colors in opposite directions and could lead to optical nanosensors that can detect very low concentrations of gases or biomolecules. Historically, a structure that is smaller than the wavelength of visible light (390 to 770 nm) should not be able to...Read full article

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