Plasmonic abilities of gold and silver spherical nanoantennas in terms of size dependent multipolar resonance frequencies and plasmon damping rates

Kolwas, K.; Derkachova, A.

doi:10.2478/s11772-010-0043-6

Cited by 56 publications

(57 citation statements)

References 39 publications

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“…[1][2][3]). In [3,4] we discuss some problems arising from such an interpretation in more details and the reasons why Mie theory is not a handy tool in studying the size dependence of plasmon resonance frequencies. In particular, one of disadvantages is that the spectra must be collected for nanoparticles of many different sizes, which is the condition for a reliable reconstruct of such size dependence.…”

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confidence: 99%

“…In [3,4] we discuss some problems arising from such an interpretation in more details and the reasons why Mie theory is not a handy tool in studying the size dependence of plasmon resonance frequencies. In particular, one of disadvantages is that the spectra must be collected for nanoparticles of many different sizes, which is the condition for a reliable reconstruct of such size dependence.In [3][4][5][6][7] we gave the direct and strict size characterisation of LSP resonances by solving the eigenvalue problem of nanospheres of different metals embedded in some dielectric environments. We found the radius dependence of resonance frequencies of multipolar LSP modes and the corresponding damping rates in alkali and noble nanoparticles and we increased the size range for data for the particles as large as 1000nm [7].…”

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confidence: 99%

“…For sodium, which is the best Drude free-electron metal,  p =5.6eV,  ib ≅1.06, and  ≅0.03eV. In our previous papers [3][4][5][6][7], multipolar LSP resonance frequencies ω l '(R) resulting from strict solutions of the dispersion relation, are given as a function of radius R and plasmon polarity (l=1, 2, 3,..., 10). These data can be used directly in all basic problems and applications of LSP in which the well defined LSP resonance frequency is needed.…”

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confidence: 99%

“….. (l=1 for the dipole mode), where ω l '(R) are the frequencies of oscillations of the EM surface plasmon modes expressed in eV and the negative ω l ''(R) define the damping times T l (R) = 2πħ/|ω l ''(R)| of plasmon oscillations due to the absorption of radiation by the metal and LSP radiative losses [4,7].…”

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confidence: 99%

“…In [3][4][5][6][7] we gave the direct and strict size characterisation of LSP resonances by solving the eigenvalue problem of nanospheres of different metals embedded in some dielectric environments. We found the radius dependence of resonance frequencies of multipolar LSP modes and the corresponding damping rates in alkali and noble nanoparticles and we increased the size range for data for the particles as large as 1000nm [7].…”

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Simple analytic tool for spectral control of dipole plasmon resonance frequency for gold and silver nanoparticles

Kolwas

Derkachova

2013

Photon. Lett. Poland

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Abstract-We give a mathematically simple tool allowing to predict dipole localized surface plasmon resonance frequency as a function of size for gold and silver nanoparticles in water. We compare the results with our previous general study resulting from strict solutions of the eigenvalue problem of metal nanospheres embedded in various dielectrics.The excitation of localized surface plasmons (LSP) on metal nanospheres offers a variety of applications in nanotechnology, biophysics, biochemistry etc. One of the most attractive advantages of LSP's application is the local enhancement of the electromagnetic (EM) field in the very proximity of the nanosphere. This effect takes place when the frequency of an incoming light field corresponds to the characteristic resonance frequency of LSP. This property is applied in surface-enhanced Raman spectroscopy (SERS), high-resolution microscopy, improvement of plasmonic solar cells and many plasmonic applications such as non-diffraction-limited guiding of light (e.g. via a chain of gold nanospheres). Gold and silver nanoparticles are important components of many plasmonic devices due to their chemical inertness and unique optical properties in the visible and near-infrared spectral range. In contrast to a metal with a flat surface, the curved surface of a nanoparticle enables direct optical excitation of plasmon resonances. It has been demonstrated that the plasmon-related optical features are sensitive to the size, shape, and environment of nanoparticles. Such sensitivity permits to tune the optical response of nanoparticles, thus making them suitable for a wide range of applications in photonics and optoelectronics. The possibility of manipulating LSP frequency is very attractive in applications.Effective controlling of spectral properties of plasmonic nanospheres is not possible without knowing the direct dependence of LSP resonance frequency and resonance spectral width (defined by plasmon damping rates) on particle size.The solutions of Mie deliver indispensable formalism enabling to calculate the EM fields in the near and far field regions around a spherical particle illuminated by a plane monochromatic wave. The resulting light intensities as well as the absorption and extinction cross-sections can be found for chosen particle size. Mie theory supposes that the nanoparticles and the surrounding medium are homogeneous and characterized by bulk permittivity functions which are the outside parameters of the theory. The problem is solved in spherical coordinates where electromagnetic fields are expressed as infinite sums of the partial electromagnetic waves of the "electric" (or transverse magnetic (TM)) and "magnetic" (or transverse electric (TE)) type.Usually, the positions of successive peaks, appearing in the extinction or absorption spectra are interpreted as directly related to positions of surface plasmon resonances. The spectra collected for nanoparticles of different sizes have been used as a source of experimental data allowing to reconstruct the dependence of t...

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Simple analytic tool for spectral control of dipole plasmon resonance frequency for gold and silver nanoparticles

Kolwas

Derkachova

2013

Photon. Lett. Poland

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Modeling and Interpretation of Hybridization in Coupled Plasmonic Systems

Bakhti¹,

Destouches²,

Tishchenko³

2016

Reviews in Plasmonics

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Tailoring Surface Plasmons in Metal Nanoparticles

Joshi

2021

Springer Proceedings in Materials

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Surface plasmon resonance affects the optical properties of metal nanoparticles. The resonant wavelength, which is characteristic property of localised surface plasmon resonance, depends on dielectric function of the metal and also on size, shape, composition and external matrix of nanoparticle. Optical constants of metal nanoparticles are studied theoretically using different theories like Mie, Gans, EMGM and MEM. It is shown that size of nanoparticle shows its effect only in EMGM theory. Absorption spectrum is shown to be redshifted with increase in both size of nanoparticle and refractive index of external matrix. This redshift observed in the nanocomposites is supported using Mie's simulation and extended Maxwell-Garnet-Mie theory (EMGM). Redshift in resonant wavelength, due to change in external matrix, is utilised in sensors and in various devices.

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Plasmonic abilities of gold and silver spherical nanoantennas in terms of size dependent multipolar resonance frequencies and plasmon damping rates

Cited by 56 publications

References 39 publications

Simple analytic tool for spectral control of dipole plasmon resonance frequency for gold and silver nanoparticles

Simple analytic tool for spectral control of dipole plasmon resonance frequency for gold and silver nanoparticles

Modeling and Interpretation of Hybridization in Coupled Plasmonic Systems

Tailoring Surface Plasmons in Metal Nanoparticles

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