Transport and Trapping in Two-Dimensional Nanoscale Plasmonic Optical Lattice

Chen, Kuan‐Yu; Lee, An‐Ting; Hung, Chia-Chun; Huang, Jer‐Shing; Yang, Yi

doi:10.1021/nl4016254

Cited by 78 publications

(76 citation statements)

References 47 publications

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“…20 A fiber-coupled diode laser 980 nm beam (PL980P330J) was expanded via beam expansion, and loosely focused using an oil immersion microscope objective (NA ¼ 1.25, 100Â, Nikon) to excite the plasmonic sample. The loose focusing was achieved by partially overfilling the back aperture of the microscope objective.…”

Section: A Optical Setupmentioning

confidence: 99%

“…17,18 A scaled-down version of such periodic potentials can be produced using periodic plasmonic nanostructures. 19,20 Cuche et al recently demonstrated that near-field optical forces can produce negative refraction effects on the trajectory of nanoparticles in a plasmonic crystal created in a patterned metallic film. 19 The same group of authors also reported on trapping and transport over a periodic array of gold nanodiscs, under illumination with a loosely Note: Paper submitted as part of the selected papers from the 5th International Conference on Optofluidics (Guest Editors: Shih-Kang Fan and Zhenchuan Yang) held in Taipei, Taiwan, July [26][27][28][29]2015.…”

Section: Introductionmentioning

confidence: 99%

“…Electronic mail: ytyang@ee.nthu.edu.tw focused Gaussian beam. 20 Single-particle transport and multiple-particle trapping have been demonstrated for dielectric nanospheres with a diameter of 100 nm.…”

Section: Introductionmentioning

confidence: 99%

“…A simple square plasmonic optical lattice was used to confer in-lattice transport, similar to our previous work. 20 The optical lattice used here also produced a delocalized temperature profile. These two features distinctly differed from Toussaint's work on the arrays of bowtie nanoantennas.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of the near-field and convectional transport behavior of micro and nanoparticles in nanoscale plasmonic optical lattices

2016

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Here, we report the characterization of the transport of micro-and nanospheres in a simple two-dimensional square nanoscale plasmonic optical lattice. The optical potential was created by exciting plasmon resonance by way of illuminating an array of gold nanodiscs with a loosely focused Gaussian beam. This optical potential produced both in-lattice particle transport behavior, which was due to near-field optical gradient forces, and high-velocity ($lm/s) out-of-lattice particle transport. As a comparison, the natural convection velocity field from a delocalized temperature profile produced by the photothermal heating of the nanoplasmonic array was computed in numerical simulations. This work elucidates the role of photothermal effects on micro-and nanoparticle transport in plasmonic optical lattices. Published by AIP Publishing. [http://dx

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Section: A Optical Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization of the near-field and convectional transport behavior of micro and nanoparticles in nanoscale plasmonic optical lattices

2016

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“…In this context, surface plasmons (SPs) excited on a metal film are interesting: through their strong amplitude and phase gradients, they give rise to very efficient momentum transfers enabling direct object manipulations together with pulling effects that maintain particles in the near field [20][21][22][23][24][25]. But while SPs are characterized by chirality flows due to their intrinsic spinning nature, plasmonic chiral densities identically vanish because of the transverse magnetic polarization of SPs [26].…”

Section: Introductionmentioning

confidence: 99%

Chiral near fields generated from plasmonic optical lattices

Canaguier-Durand

Genet

2014

Phys. Rev. A

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Plasmonic fields are usually considered non-chiral because of the transverse magnetic polarization of surface plasmon modes. We however show here that an optical lattice created from the intersection of two coherent surface plasmons propagating on a smooth metal film can generate optical chirality in the interfering near field. We reveal in particular the emergence of plasmonic potentials relevant to the generation of near-field chiral forces. This draws promising perspectives for performing enantiomeric separation schemes within the near field.

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Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications

et al. 2021

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can efficiently couple light into nanostructures and confine light below diffraction limit. [8,9] With these properties, plasmonics have found important applications in various fields such as plasmonic sensing, [10][11][12][13] plasmon-enhanced spectroscopies, [14][15][16] plasmonic nanolasing, [17][18][19] and perfect light absorption. [20,21] The optical performances of plasmonic nanostructures are highly dependent on the resonance modes that they support. Generally, there are two fundamental surface plasmonic modes: localized surface plasmon resonance (LSPR) and propagating surface plasmon polaritons (SPP). [22,23] LSPR can be observed on metal nanoparticles. [22,24,25] However, the strong radiative damping of metal nanoparticles results in broad resonant spectra, severely limiting the applications of metal nanoparticles in fields such as plasmonic sensing and nanolasing. [26,27] SPP is usually generated at the interface between metal and dielectric with the assistance of a high refractive index prism or by constructing a grating structure. [23,28,29] The near-field decay length of SPP mode is 40-50 times larger than that of LSPR mode. [23] Therefore, SPP structures usually provide higher bulk sensitivity when used for plasmonic sensing. [23] However, it is difficult to achieve a flexible tuning of SPP mode only by above configurations. In addition, single resonance mode also greatly limits the applications of the devices.According to the plasmon hybridization theory, coupling of different resonance modes can endow plasmonic nanostructures with richer optical properties and thereby improve their performance and broaden their application fields. [30][31][32] Metallic plasmonic arrays have been demonstrated to be a powerful platform for the simultaneous excitation of the above two basic types of plasmonic modes. [33,34] In addition, they can also support many other types of resonance modes such as Fabry-Pérot (F-P) cavity mode, surface lattice resonance (SLR), and plasmonic Fano resonance due to the flexibility in structure design. [32,[35][36][37][38] These modes together give the nanostructured plasmonic arrays with attractive performance unattainable by using individual LSPR or SPP mode. Benefited from the abundant optical properties, nanostructured metallic plasmonic arrays can be utilized in a fashion of "device-by-design." For example, for plasmonic sensing, a plasmonic array with a narrow spectrum can be fabricated for an excellent sensing performance; [23,26] while for surface-enhanced Raman spectroscopy (SERS) detection, a plasmonic array with a relatively broad spectrum is needed to achieve local field enhancement and radiative enhancement simultaneously. [39,40] Therefore, the investigation The vast development of nanofabrication has spurred recent progress for the manipulation of light down to a region much smaller than the wavelength. Metallic plasmonic array structures are demonstrated to be the most powerful platform to realize controllable light-matter interactions and have found wide application...

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Transport and Trapping in Two-Dimensional Nanoscale Plasmonic Optical Lattice

Cited by 78 publications

References 47 publications

Characterization of the near-field and convectional transport behavior of micro and nanoparticles in nanoscale plasmonic optical lattices

Characterization of the near-field and convectional transport behavior of micro and nanoparticles in nanoscale plasmonic optical lattices

Chiral near fields generated from plasmonic optical lattices

Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications

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