• Corpus ID: 13067876


  author={Stuart P. Edwardson and Walter Perrie and C. J. Williams and Martin Sharp and G. Dearden and Zheng Wang and David Whitehead and Philip L. Crouse and Zhenfu Li and Long-di Li and K. G. Watkins},
The newly formed North West Laser Engineering Consortium (NWLEC), a strategic alliance between the Universities of Liverpool and Manchester in the North West of England UK, has an ongoing research programme into micro and nano manipulation techniques for microassembly and manufacture. A key area of research is optical trapping. Since their invention just over 20 years ago, optical traps have emerged as a powerful tool with broad-reaching applications in biology, physics and now potentially… 


A revolution in optical manipulation
This research presents the next generation of single-beam optical traps, which promise to take optical tweezers out of the laboratory and into the mainstream of manufacturing and diagnostics and even become consumer products.
Optical trapping.
Progress in the development of optical trapping apparatus is reviewed, including instrument design considerations, position detection schemes and calibration techniques, with an emphasis on recent advances.
Optical micromanipulation takes hold
  • K. Dholakia
  • Physics, Engineering
    SPIE Optics + Photonics
  • 2006
Optical micro-manipulation has seen a resurgence of interest in recent years which has been due in part to new application areas and the use of tailored forms of light beams particularly using
3D manipulation of particles into crystal structures using holographic optical tweezers.
We have developed holographic optical tweezers that can manipulate many particles simultaneously in three dimensions in order to create micro-crystal structures that extend over many tens of microns.
An optical trapped microhand for manipulating micron-sized objects.
We have developed a real time interface for holographic optical tweezers where the operator's fingertips are mapped to the positions of silica beads captured in optical traps. The beads act as the
Observation of a single-beam gradient force optical trap for dielectric particles.
Optical trapping of dielectric particles by a single-beam gradient force trap was demonstrated for the first reported time. This confirms the concept of negative light pressure due to the gradient
Expanding the optical trapping range of gold nanoparticles.
Three-dimensional power spectral analysis reveals that, for nanoparticles with diameters less than 100 nm, the trap stiffness is proportional to the volume of the particle, and for larger particles, thetrap stiffness still increases with size, however, less steeply.
Stability of optical levitation by radiation pressure
Stable optical levitation of transparent hollow dielectric spheres has been demonstrated using TEM01 mode laser beams. The levitation of solid dielectric spheres has been made much more stable using
Orbital angular momentum of a high order Bessel light beam
Summary form only given. We demonstrate experimentally for the first time, that a high order Bessel beam possesses orbital angular momentum (OAM). We demonstrate transfer of OAM from such a beam to
et al : 3 D manipulation of particles into crystal structures using holographic optical tweezers
  • In : Optics Express
  • 2004