Optical Trapping and Manipulation of Nano-objects with an Apertureless Probe

Optical trapping and manipulation of nano-objects with an apertureless probe.

We propose a novel way to trap and manipulate nano-objects above a dielectric substrate using an apertureless near-field probe. A combination of evanescent illumination and light scattering at the probe apex is used to shape the optical field into a localized, three-dimensional optical trap. We use the coupled-dipole method and the Maxwell stress tensor to provide a self-consistent description ...

Near-field two-photon nanolithography using an apertureless optical probe

Near-field two-photon optical lithography is demonstrated by using ;120 fs laser pulses at 790 nm in an apertureless near-field optical microscope, which produces lithographic features with ;70 nm resolution. The technique takes advantage of the field enhancement at the extremity of a metallic probe to induce nanoscale two-photon absorption and polymerization in a commercial photoresist, SU-8. ...

Near-Field Multiphoton Nanolithography Using an Apertureless Optical Probe

Near-field multiphoton optical lithography is demonstrated by using ~120 fs laser pulses at 790 nm in an apertureless near-field optical microscope, which produce the lithographic features with ~ 70 nm resolution. The technique takes advantage of the field enhancement at the extremity of a metallic probe to induce nanoscale multiphoton absorption and polymerization in a commercial photoresist, ...

Designs of apertureless probe with nano-slits for near-field light localization and concentration

Optical trapping and manipulation of nanostructures.

Optical trapping and manipulation of micrometre-sized particles was first reported in 1970. Since then, it has been successfully implemented in two size ranges: the subnanometre scale, where light-matter mechanical coupling enables cooling of atoms, ions and molecules, and the micrometre scale, where the momentum transfer resulting from light scattering allows manipulation of microscopic object...