Push-Pull Phenomenon of a Dielectric Particle in a Rectangular Waveguide

Paul, N. K.; Kemp, Brandon A.

doi:10.2528/pier15022404

Cited by 7 publications

(7 citation statements)

References 20 publications

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“…Only very recently, transporting particles by waveguides opposite to the field-propagating direction has been proposed in the far infrared range. 12 When the injected light is below the cutoff frequency, the propagating mode is turned into the evanescent mode in which the field intensity decays along the propagating direction. Under the evanescent mode, the gradient force overcomes the radiation pressure on the particles and pulls the particles towards the light source.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable optical manipulation by phase change material waveguides

et al. 2017

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Optical manipulation by dielectric waveguides enables the transportation of particles and biomolecules beyond diffraction limits. However, traditional dielectric waveguides could only transport objects in the forward direction which does not fulfill the requirements of the next generation lab-on-chip system where the integrated manipulation system should be much more flexible and multifunctional. In this work, bidirectional transportation of objects on the nanoscale is demonstrated on a rectangular waveguide made of the phase change material GeSbTe (GST) by numerical simulations. Either continuous pushing forces or pulling forces are generated on the trapped particles when the GST is in the amorphous or crystalline phase. With the technique of a femtosecond laser induced phase transition on the GST, we further proposed a reconfigurable optical trap array on the same waveguide. This work demonstrates GST waveguide's potential of achieving multifunctional manipulation of multiple objects on the nanoscale with plausible optical setups.

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Section: Introductionmentioning

confidence: 99%

Reconfigurable optical manipulation by phase change material waveguides

et al. 2017

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“…It can eventually trap and manipulate particles by a strongly focused beam of light [9], but it's tight focusing requirements limit its application over a large manipulation area. Presently, scientists are also interested in using guided waves to trap and manipulate small particles [10][11][12]. Particles can be transported bidirectionally in the longitudinal direction by tuning the frequency of the light wave [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Presently, scientists are also interested in using guided waves to trap and manipulate small particles [10][11][12]. Particles can be transported bidirectionally in the longitudinal direction by tuning the frequency of the light wave [12,13]. Gold nanoparticles of different sizes can be sorted out bidirectionally in the longitudinal direction by dual wavelength counter-propagating evanescent waves, where the red-shift of the plasmon resonance for increased size of particles allows the movement of different sized nanoparticles in opposite direction [14].…”

Section: Introductionmentioning

confidence: 99%

Optical manipulation of small particles on the surface of a material

Paul¹,

Kemp²

2016

J. Opt.

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Optical trapping and manipulation of dielectric particles on the surface of a dielectric prism using TE plane waves are demonstrated in the Rayleigh scattering regime. The interference of four counter propagating evanescent waves forms a standing wave on the planar surface and the trapping is realized based on the gradient force. Two mirrors are used to manipulate the trapped particles in any arbitrary direction on the surface. The required trapping potential and the irradiance within the Rayleigh scattering regime are computed. A hypothesis is developed to pull the particles at a maximum force toward the surface for further demonstration of this configuration. The standing wave on the surface of the prism using TE Gaussian beams are demonstrated for practical illustration of this study.

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“…Furthermore, to achieve enhanced forward scattering, multipoles must be simultaneously excited, which renders the optical pulling material-and size-dependent [3,6,10]. These problems can be partially solved by changing the background from free space to a waveguide [11][12][13][14][15][16][17][18] or metamaterials [19], such as using the guided waves supported in a double-mode photonic crystal waveguide [16][17][18].…”

mentioning

confidence: 99%

Optical pulling using topologically protected one way transport surface-arc waves

Wang¹,

Zhang²,

Guo³

et al. 2022

Phys. Rev. B

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This paper proposes a new method to achieve robust optical pulling of particles by using an air waveguide sandwiched between two chiral hyperbolic metamaterials. The pulling force is induced by mode conversion between a pair of one-way-transport surface-arc waves supported on the two metamaterial surfaces of the waveguide. The surface arcs bridge the momentum gaps between isolated bulk equifrequency surfaces (EFSs) and are topologically protected by the nontrivial Chern numbers of the EFSs.

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Push-Pull Phenomenon of a Dielectric Particle in a Rectangular Waveguide

Cited by 7 publications

References 20 publications

Reconfigurable optical manipulation by phase change material waveguides

Reconfigurable optical manipulation by phase change material waveguides

Optical manipulation of small particles on the surface of a material

Optical pulling using topologically protected one way transport surface-arc waves

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