New Nanoscale Imaging Method Finds Application in Plasmonics (IMAGE)

National Institute of Standards and Technology (NIST)

New Nanoscale Imaging Method Finds Application in Plasmonics

Caption

Infrared laser light (purple) from below a sample (blue) excites ring-shaped nanoscale plasmonic resonator structures (gold). Hot spots (white) form in the rings' gaps. In these hot spots, infrared absorption is enhanced, allowing for more sensitive chemical recognition. A scanning AFM tip detects the expansion of the underlying material in response to absorption of infrared light.

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NIST

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