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Tag: plasmonics

Using Light-force To Study Single Molecules

When it comes to studying single molecules, scientists use a powerful technique called surface-enhanced Raman scattering (SERS). An extremely sensitive tool, SERS detects the vibrations within the atoms of the illuminated molecule as a change in light color. But the sensitivity of SERS is limited at room temperature because molecules vibrate too weakly. Ecole Polytechnique […]

Plasmonics: Revolutionizing Light-based Technologies Via Electron Oscillations In Metals

For centuries, artists mixed silver and gold powder with glass to fabricate colorful windows to decorate buildings. The results were impressive, but they didn’t have a scientific reason for how these ingredients together made stained glass. In the early 20th century, the physicist Gustav Mie figured out that the color of a metal nanoparticle is […]