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Researchers from the University of Technology Sydney (UTS) have deployed the existing principles of optical tweezer technology, which enables the manipulation and assemblage of nanoparticles, as a base for a technique that allows them to manipulate particles possessing the same refractive properties as those of the background environment in a given setting. Optical tweezing relies on a difference in the refractive properties between trapped nanoparticles and the surrounding environment.
The new method, shown as a proof of concept, involves doping nanocrystals with rare-earth metal ions and trapping the nanoparticles at low energy levels and with high levels of efficiency.
“Traditionally, you need hundreds of milliwatts of…READ MORE