130 citations · 193 across the 5 of their papers we have counts for
5 papers
Optical trapping below the diffraction limit with a tunable beam waist using super-oscillating beams
Harel Nagar, Tamir Admon, Doron Goldman +2
Super-oscillating beams can be used to create light spots whose size is below the diffraction limit with a side ring of high intensity adjacent to them. Optical traps made of the s…
Deep penetration fluorescence imaging through dense yeast cells suspensions using Airy beams
Harel Nagar, Yael Roichman
We propose a new method to image fluorescent objects through turbid media base on Airy beam scanning. This is achieved by using the non-diffractive nature of Airy beams, namely the…
Particle trapping and conveying using an optical Archimedes' screw
Barak Hadad, Sahar Froim, Harel Nagar +4
Trapping and manipulation of particles using laser beams has become an important tool in diverse fields of research. In recent years, particular interest is given to the problem of…
Particle manipulation beyond the diffraction limit using structured super-oscillating light beams
Brijesh Kumar Singh, Harel Nagar, Yael Roichman +1
The diffraction limited resolution of light focused by a lens was derived in 1873 by Ernst Abbe. Later in 1952, a method to reach sub-diffraction light spots was proposed by modula…
Collective excitations of hydrodynamically coupled driven colloidal particles
Harel Nagar, Yael Roichman
Two colloidal particles, driven around an optical vortex trap, have been recently shown to pair due to an interplay between hydrodynamic interactions and the curved path they are f…