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A team from Tomsk Polytechnic University (TPU), working with scientists from the V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences, has increased the operation range and stability of optical tweezers. In the team’s method, light, interacting with a microparticle, is focused in the form of a photon jet in the direction opposite the radiation incidence. The photon jet functions as a trap.
Forming a photon jet from a dielectric particle with the ratio of a particle and a medium higher than two can increase the optical traps’ capture area, said Igor Minin, project manager and professor of the TPU Division for Electronic Engineering. To form a classic photon jet, the ratio of…READ MORE