Researchers record ultrafast chorus dance of electrons on super-small particle

It may be the smallest, shortest chorus dance ever recorded. An international team of researchers observed how electrons, excited by ultrafast light pulses, danced in unison around a particle less than a nanometer in diameter. Researchers measured this dance with unprecedented precision, achieving the first measurement of its kind at the sub-nanometer scale. The synchronized dance of electrons, known as plasmonic resonance, can confine light for brief periods of time. That light-trapping ability has been applied in a wide range of areas, from turning light into chemical energy to improving light-sensitive gadgets and even converting sunlight into electricity. While they’ve been studied extensively in systems from several centimeters across to those just 10 nanometers wide, this is the first time researchers were able to break the field’s ‘nanometer barrier.’ …read more