Raman Scattering Measures Single-Molecule Vibrations
IRVINE, Calif., Aug. 21, 2014 — Measurement of the vibrations, or “breathing,” of single molecules is now possible using Raman spectroscopy techniques.
A team from the University of California, Irvine, viewed a bipyridylethylene (BPE) molecule vibrating via time-resolved coherent anti-Stokes Raman scattering (CARS). Two 90-nm gold plasmonic nanoantennas amplified radiation reflected from the single molecule to a detectable level.
“Detecting one molecule through scattering of light is...