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Under a standard microscope, these plasmonic nanoparticles may seem identical, but an image captured by a snapshot hyperspectral imaging system developed at Rice University shows just how different they are. The system images multiple nanoparticles and their plasmonic responses – the light they emit when excited – to show how they differ due to defects or differences in their size or shape.

Scientists developed an imaging technique that pulls plasmon data together

Plasmons are the organized wavering of electrons in metals that is activated by light. Plasmonic nanoparticles are nanometer-sized precious stones that retain and respond...