The induction of the optofluidic force allows the characterization of the nanoparticles in real time
Schemes of the optofluidic force induction scheme (OF2i). (a) The particles are immersed in a fluid and are pumped through a microfluidic channel. A weakly focused Laguerre-Gaussian laser beam with an OAM propagates in the same direction as the flow of the particles and exerts optical forces on the nanoparticles. By monitoring the scattered light …