Evanescent field trapping of nanoparticles using nanostructured ultrathin optical fibers.

@article{Daly2016EvanescentFT,
  title={Evanescent field trapping of nanoparticles using nanostructured ultrathin optical fibers.},
  author={Mark Daly and Viet Giang Truong and S{\'i}le Nic Chormaic},
  journal={Optics express},
  year={2016},
  volume={24 13},
  pages={
          14470-82
        }
}
While conventional optical trapping techniques can trap objects with submicron dimensions, the underlying limits imposed by the diffraction of light generally restrict their use to larger or higher refractive index particles. As the index and diameter decrease, the trapping difficulty rapidly increases; hence, the power requirements for stable trapping become so large as to quickly denature the trapped objects in such diffraction-limited systems. Here, we present an evanescent field-based… 

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References

SHOWING 1-10 OF 46 REFERENCES
Optical trapping and manipulation of micrometer and submicrometer particles
Subwavelength features in conjunction with light‐guiding structures have gained significant interest in recent decades due to their wide range of applications to particle and atom trapping. Lately,
Three-Dimensional Optical Trapping of a Plasmonic Nanoparticle using Low Numerical Aperture Optical Tweezers
TLDR
It is shown theoretically that the unique properties of gold nanoprisms allow an increase of trapping force by an order of magnitude at certain aspect ratios, paving the way to spatial manipulation of plasmonic nanoparticles using an optical fibre, with interesting applications in biology and medicine.
Optical manipulation of nanoparticles and biomolecules in sub-wavelength slot waveguides
TLDR
An approach to optofluidic transport that overcomes limitations, using sub-wavelength liquid-core slot waveguides, and provides the ability to handle extended biomolecules directly.
Optical trapping and manipulation of nanostructures.
TLDR
The state-of-the-art in optical trapping at the nanoscale is reviewed, with an emphasis on some of the most promising advances, such as controlled manipulation and assembly of individual and multiple nanostructures, force measurement with femtonewton resolution, and biosensors.
Quantification of high-efficiency trapping of nanoparticles in a double nanohole optical tweezer.
TLDR
The dynamics of 20 nm polystyrene particles in a double nanohole trap are measured to determine the trap stiffness for various laser powers to quantitatively evaluate future aperture-based optical traps, with the goal of studying the folding dynamics of smaller proteins and small-molecule interactions.
Selective particle trapping and optical binding in the evanescent field of an optical nanofiber.
TLDR
A detailed study of the optical binding interactions of a pair of 3.13 μm SiO(2) spheres in the nanofiber evanescent field is presented.
Nanostructured optical nanofibres for atom trapping
We propose an optical dipole trap for cold, neutral atoms based on the electric field produced from the evanescent fields in a hollow, rectangular slot cut through an optical nanofibre. In
Nanophotonic Trapping for Precise Manipulation of Biomolecular Arrays
TLDR
An array of stable, three-dimensional on-chip optical traps is formed at the antinodes of a standing-wave evanescent field on a nanophotonic waveguide using photonic interference functionalities and can be repositioned at high speed with nanometer precision.
Higher order microfibre modes for dielectric particle trapping and propulsion
TLDR
A microfibre/optical tweezers compact system for trapping and propelling dielectric particles based on the excitation of the first group of higher order modes at the fibre waist, which can be extended to trapping and manipulation of laser-cooled atoms with potential for quantum networks.
...
1
2
3
4
5
...