Optical Tuning of timescale seperation in non equilibrium steady states

  Galor Geva  ,  Tamir Admon  ,  Guri Achi Dror  ,  Asaf Cohen  ,  Yael Roichman  
Tel Aviv university
Tel Aviv Center for light matter interaction

•We used Holographic Optical Tweezers, in order to create an array of randomly placed optical traps.

•We succeeded in creating a timescale seperation, thus creating “Brownian motion”, driven mainly by the optical traps, and not by thermal motion.

•This allowed us to control the diffusion coefficient, and by doing so, creating an effective temperature via the Stokes-Einstein relation.