Light-Induced Pulling and Pushing by the Synergic Effect of Optical Force and Photophoretic Force

Lu, Jinsheng; Yang, Hangbo; Zhou, Lina; Yang, Yuanqing; Luo, Si; Li, Qiang; Qiu, Min

doi:10.1103/physrevlett.118.043601

Cited by 92 publications

(86 citation statements)

References 41 publications

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“…For azimuthally polarized beam, the force is pulling, while for radially polarized beam, the force is pushing. (b) Pulling and pushing of a metallic plate on a fiber taper 108. Ding et al: Photonic tractor beams: a review Advanced Photonics 024001-10 Mar∕Apr 2019 • Vol.…”

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confidence: 99%

Photonic tractor beams: a review

et al. 2019

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Usually, an unfocused light beam, such as a paraxial Gaussian beam, can exert a force on an object along the direction of light propagation, which is known as light pressure. Recently, however, it was found that an unfocused light beam can also exert an optical pulling force (OPF) on an object toward the source direction; the beam is accordingly named an optical tractor beam. In recent years, this intriguing force has attracted much attention and a huge amount of progress has been made both in theory and experiment. We briefly review recent progress achieved on this topic. We classify the mechanisms to achieve an OPF into four different kinds according to the dominant factors. The first one is tailoring the incident beam. The second one is engineering the object's optical parameters. The third one is designing the structured material background, in which the light-matter interaction occurs, and the fourth one is utilizing the indirect photophoretic force, which is related to the thermal effect of light absorption. For all the methods, we analyze the basic principles and review the recent achievements. Finally, we also give a brief conclusion and an outlook on the future development of this field.

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Photonic tractor beams: a review

et al. 2019

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“…We note, that the periodic motions observed here are reminiscent of a somewhat similar phenomenon observed lately due to the interplay of photophoretic and direct optical forces. 39 However, here the motion is on a much longer scale, and is driven by changing the intensity profile (by rotation) of the light beam.…”

Section: Periodic Particle Motion With Non-matched Velocitiesmentioning

confidence: 99%

Particle trapping and conveying using an optical Archimedes’ screw

Hadad¹,

Froim²,

Nagar³

et al. 2018

Optica

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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 conveying optically trapped particles over extended distances either down or upstream the direction of the photons momentum flow. Here, we propose and demonstrate experimentally an optical analogue of the famous Archimedes' screw where the rotation of a helical-intensity beam is transferred to the axial motion of optically-trapped micro-meter scale airborne carbon based particles. With this optical screw, particles were easily conveyed with controlled velocity and direction, upstream or downstream the optical flow, over a distance of half a centimeter. Our results offer a very simple optical conveyor that could be adapted to a wide range of optical trapping scenarios.

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“…Most of previous theoretical and experimental work considered thermal equilibrium with a constant light intensity [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], such that H=AI from Eq. (5).…”

Section: Temporal Dependence Of Photophoretic Forcementioning

confidence: 99%

Temporal Dependence of Photophoretic Force Optically Induced on Absorbing Airborne Particles by a Power-Modulated Laser

Chen

et al. 2018

Phys. Rev. Applied

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Photophoretic force due to the optically-induced thermal effect provides an effective way to manipulate the light-absorbing particles suspended in ambient gases. However, how this force temporally responds to the intensity modulation of the illumination light is unclear. Here, by vertically trapping a micron-sized absorbing particle with a negative photophoretic force generated by a focused Gaussian beam, we demonstrate that the temporal change in the photophoretic force in response to the intensity modulation is remarkably slow (with a time constant up to ~1 s) due to the slow change in the particle's temperature. When the trapping beam is turned off for a few tens or hundreds of milliseconds, the trapped particle is found to be pulled up towards the light source by the remained photophoretic force, whereas when the intensity of the trapping beam is increased for a short duration, the particle is pushed off by the radiation pressure. The instantaneous position of the trapped particles following the intensity modulation of the trapping laser is tracked and theoretically modeled. The understanding of the temporal behavior of the photophoretic force would be useful for the control of photophoretic-based optical pulling, transportation, and manipulation of atmospheric particles.

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Light-Induced Pulling and Pushing by the Synergic Effect of Optical Force and Photophoretic Force

Cited by 92 publications

References 41 publications

Photonic tractor beams: a review

Photonic tractor beams: a review

Particle trapping and conveying using an optical Archimedes’ screw

Temporal Dependence of Photophoretic Force Optically Induced on Absorbing Airborne Particles by a Power-Modulated Laser

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