By 'putting a ring on it,' microparticles can be captured
Tuesday, July 20, 2010 - 10:14
in Physics & Chemistry
To trap and hold tiny microparticles, engineers have "put a ring on it," using a silicon-based circular resonator to confine particles stably for up to several minutes. The advance could one day lead to the ability to direct, deliver, and store nanoparticles and biomolecules on all-optical chips.