Dark-hollow optical beams with a controllable shape for optical trapping in air

Porfirev, Alexey P.; Скиданов, Р. В.

doi:10.1364/oe.23.008373

Cited by 41 publications

(15 citation statements)

References 20 publications

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“…Carefully designed interference patterns created with dynamically reconfigurable holograms enable simultaneous trapping of several particles and even the creation of three-dimensional artificial crystals 3 , 4 . The stiffness of optical traps and subsequent particle localization can be controlled by employing hollow beams, higher-order Gauss–Hermite and Gauss–Laguerre modes, etc 5 , 6 , 7 . Trapping schemes employing structured light beams play a major role in many experiments.…”

Section: Introductionmentioning

confidence: 99%

Plasmon-assisted optical trapping and anti-trapping

et al. 2016

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The ability to manipulate small objects with focused laser beams has opened a venue for investigating dynamical phenomena relevant to both fundamental and applied science. Nanophotonic and plasmonic structures enable superior performance in optical trapping via highly confined near-fields. In this case, the interplay between the excitation field, re-scattered fields and the eigenmodes of a structure can lead to remarkable effects; one such effect, as reported here, is particle trapping by laser light in a vicinity of metal surface. Surface plasmon excitation at the metal substrate plays a key role in tailoring the optical forces acting on a nearby particle. Depending on whether the illuminating Gaussian beam is focused above or below the metal-dielectric interface, an order-of-magnitude enhancement or reduction of the trap stiffness is achieved compared with that of standard glass substrates. Furthermore, a novel plasmon-assisted anti-trapping effect (particle repulsion from the beam axis) is predicted and studied. A highly accurate particle sorting scheme based on the new anti-trapping effect is analyzed. The ability to distinguish and configure various electromagnetic channels through the developed analytical theory provides guidelines for designing auxiliary nanostructures and achieving ultimate control over mechanical motion at the micro- and nano-scales.

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Section: Introductionmentioning

confidence: 99%

Plasmon-assisted optical trapping and anti-trapping

et al. 2016

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“…These particles have a non-spherical shape, and therefore ideally suited for experiments of this kind that has been shown in previous experiments [10,16,21]. Figure 3 shows the experimental results of how the position of each of the trapped particles using a spatial light modulator can be controlled dynamically.…”

Section: Design Methodsmentioning

confidence: 98%

Laser Trapping Based on Photophoretic Forces Using a Spatial Light Modulator

Porfirev

Shipilov²

2016

Collection of Selected Papers of the II International Conference on Information Technology and Nanotechnology

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Abstract.We demonstrate laser manipulation of light-absorbing particles in air using a spatial light modulator. By controlling the three-dimensional distribution of the generated optical field, we demonstrate how to control the position of individual trapped particles dynamically and independently. The transfer of a trapped particle from one optical trap to another is shown.Keywords: laser trapping, photophoresis, photophoretic forces, spatial light modulator, light-absorbing particles.Citation: Porfirev AP, Shipilov AS. Laser trapping based on photophoretic forces using a spatial light modulator.

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“…Porfirev and Skidanov [32] report on a technique for generating dark-hollow optical beams with a controllable cross-sectional intensity distribution by superposing Bessel beams. By exploiting this technique, they are able to demonstrate photophoresis-based optical trapping and manipulation of absorbing airborne nanoclusters.…”

Section: Trapping Schemes and Applicationsmentioning

confidence: 99%

Optical cooling and trapping: introduction

Neves¹,

Jones²,

Luo³

et al. 2015

J. Opt. Soc. Am. B

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The year 2015 is an auspicious year for optical science, as it is being celebrated as the International Year of Light and Light-Based Technologies. This focus issue of the journals Optics Express and Journal of the Optical Society of America B has been organized by the OSA Technical Group on Optical Cooling and Trapping to mark this occasion, and to highlight the most recent and exciting developments in the topics covered by the group. Together this joint focus issue features 33 papers, including both experimental and theoretical works, which span this wide range of activities.

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Dark-hollow optical beams with a controllable shape for optical trapping in air

Cited by 41 publications

References 20 publications

Plasmon-assisted optical trapping and anti-trapping

Plasmon-assisted optical trapping and anti-trapping

Laser Trapping Based on Photophoretic Forces Using a Spatial Light Modulator

Optical cooling and trapping: introduction

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