Momentum-Topology-Induced Optical Pulling Force

Li, Hang; Cao, Yongyin; Shi, Bojian; Zhu, Tongtong; Geng, Yong; Feng, Rui; Wang, Lin; Sun, Fangkui; Shi, Yuzhi; Miri, Mohammad‐Ali; Nieto‐Vesperinas, M.; Qiu, Cheng‐Wei; Ding, Weiqiang

doi:10.1103/physrevlett.124.143901

Cited by 46 publications

(29 citation statements)

References 76 publications

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“…[ 25 ] Similar method was also used for the screening of bacterial binding agents such as antibodies at single bacterial level. [ 26 ] The novel physics behind optical forces has been revealed with structured light or complexly shaped beams, [ 27,28 ] tailoring new light–matter interactions for optical trapping and manipulation, such as optical torque, [ 27 ] optical pulling force, [ 29,30 ] and optical binding force. [ 31 ] To overcome the diffraction limit, nanotweezers based on near‐field techniques such as slot waveguides, [ 32 ] photonic crystal resonators, [ 33 ] plasmonic structures, [ 34,35 ] and photonic nanojets [ 36 ] have been utilized to shape the optical field beyond the fundamental diffraction limit and to generate nano‐optical forces for the trapping and manipulation of single nanoparticles [ 37 ] or biomolecules [ 32,38 ] with nanometer accuracy.…”

Section: Introductionmentioning

confidence: 99%

Optical Forces: From Fundamental to Biological Applications

et al. 2020

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Optical forces, generally arising from changes of field gradients or linear momentum carried by photons, form the basis for optical trapping and manipulation. Advances in optical forces help to reveal the nature of light–matter interactions, giving answers to a wide range of questions and solving problems across various disciplines, and are still yielding new insights in many exciting sciences, particularly in the fields of biological technology, material applications, and quantum sciences. This review focuses on recent advances in optical forces, ranging from fundamentals to applications for biological exploration. First, the basics of different types of optical forces with new light–matter interaction mechanisms and near‐field techniques for optical force generation beyond the diffraction limit with nanometer accuracy are described. Optical forces for biological applications from in vitro to in vivo are then reviewed. Applications from individual manipulation to multiple assembly into functional biophotonic probes and soft‐matter superstructures are discussed. At the end future directions for application of optical forces for biological exploration are provided.

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Section: Introductionmentioning

confidence: 99%

Optical Forces: From Fundamental to Biological Applications

et al. 2020

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“…Therefore, to generate optical pulling forces, researchers have used various methods to enhance the forward linear momentum of light by engineering light–matter interactions. Some examples include using structured sources, modifying the shapes or properties of objects, − and changing the background materials. − Meanwhile, arbitrary optical manipulation (both optical pulling and pushing forces) of metallic objects, including metallic spheres, nanorods, and nanowires, has attracted intense interest because they support surface plasmon resonances to enhance optical forces. − In particular, metallic nanowires are considered to be a promising building block for next-generation optoelectronic nanodevices. , Therefore, the on-demand, all-optical manipulation of metallic nanowires is highly desirable and requires an efficient strategy to generate optical pulling and pushing forces on metallic nanowires. However, such a strategy is still lacking, especially with a practical platform and the simple illumination of a plane wave.…”

Section: Introductionmentioning

confidence: 99%

“…Very recently, the topology-momentum-induced optical pulling force has been proposed by Ding and co-workers . By choosing suitable parameters of a photonic crystal, the authors achieve an isofrequency contour of concave shape, which provides an increment of forward linear momentum for the field scattered from an elliptical dielectric object embedded inside the photonic crystal.…”

Section: Introductionmentioning

confidence: 99%

Optical Pulling Forces Enabled by Hyperbolic Metamaterials

Jin

Dong

et al. 2021

Nano Lett.

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We propose a novel approach to generating optical pulling forces on a gold nanowire, which are placed inside or above a hyperbolic metamaterial and subjected to plane wave illumination. Two mechanisms are found to induce the optical pulling force, including the concave isofrequency contour of the hyperbolic metamaterial and the excitation of directional surface plasmon polaritons. We systematically study the optical forces under various conditions, including the wavelength, the angle of incidence of light, and the nanowire radius. It is shown that the optical pulling force enabled by hyperbolic metamaterials is broadband and insensitive to the angle of incidence. The mechanisms and results reported here open a new avenue to manipulating nanoscale objects.

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“…[ 20–23 ] Furthermore, the high‐quality‐factor microcavity made possible by HMMs breaks the size limitation of traditional microcavities and can be used to fabricate miniaturized lasers and filters. [ 24–26 ] Recently, other interesting research topics and applications have been enabled by HMMs, including optical pulling forces, [ 27,28 ] the giant Unruh effect, [ 29 ] topological and non‐Hermitian systems, [ 30–32 ] high‐sensitivity sensors, [ 33–35 ] fingerprinting, [ 36 ] wavefront manipulation, [ 37 ] and heat transfer manipulation. [ 38,39 ] Therefore, HMMs provide a new material system and physical mechanism that allows us to control the transmission of electromagnetic waves and the transfer of radiative heat.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Backward Coupler Realized by the Circuit‐Based Planar Hyperbolic Waveguide

Guo

Song

Jiang

et al. 2021

Advanced Photonics Research

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Planar waveguides limit the transmission of electromagnetic waves in a specific direction and have a wide range of applications in filters, sensors, and energy‐transfer devices. However, given the increasing demand for planar‐integrated photonics, new waveguides are required with excellent characteristics such as more functionality, greater efficiency, and smaller size. Herein, the experimental results for a planar microwave‐regime waveguide fabricated from circuit‐based magnetic hyperbolic metamaterial (HMM) are reported. HMM is a special type of anisotropic metamaterial, whose isofrequency contour (IFC) takes the form of an open hyperboloid. Because of the open‐dispersion IFCs, HMMs support propagating high‐k modes with large effective refractive indices, which allow planar hyperbolic waveguides to be miniaturized. Especially, as opposed to the traditional dielectric slab waveguide, the group velocity and phase velocity in hyperbolic waveguides are oriented in opposite directions—a characteristic that is exploited to realize the backward propagation of electromagnetic waves. Based on this property, a backward coupler based on the hyperbolic waveguide is designed and experimented with. Herein, the significant potential of circuit‐based platforms for the experimental study of the propagation and coupling of guided modes is not only revealed but also the use of HMMs for numerous integrated functional devices is promoted.

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Momentum-Topology-Induced Optical Pulling Force

Cited by 46 publications

References 76 publications

Optical Forces: From Fundamental to Biological Applications

Optical Forces: From Fundamental to Biological Applications

Optical Pulling Forces Enabled by Hyperbolic Metamaterials

Miniaturized Backward Coupler Realized by the Circuit‐Based Planar Hyperbolic Waveguide

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