Effect of plasma waves on the optical properties of metal-insulator superlattices

Mochán, W. Luis; Castillo-Mussot, Marcelo del; 20-364, Apartado Postal; México, 01000; Federal, Distrito; Barrera, Rubén G.

doi:10.1103/physrevb.35.1088

Cited by 72 publications

(40 citation statements)

References 42 publications

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“…The interaction between the current source and the HMM slab is solved by using the transfer-matrix method of Refs. [23,33]. Figure 4(a1) and (b1) demonstrate the transmitted electric-field intensity at ω = ω loc res = 0.41ω p for local and nonlocal response, respectively.…”

Section: Effects Of Nonlocal Response On a Hyperbolic Metamaterials Lensmentioning

confidence: 99%

“…We apply the hydrodynamic generalization of the common transfer-matrix method for lay-ered systems [23,33], and obtain the exact dispersion equation of the HMM…”

Section: Dispersion Relations Of Hyperbolic Metamaterialsmentioning

confidence: 99%

“…The LRA becomes more inaccurate, since the nonlocal response of free electrons starts to play a role [21][22][23][24][25][26][27][28][29][30][31][32][33]. It is known that the nonlocal response causes a blueshift of the surface plasmon (SP) resonance of the metallic particle [26][27][28][29], and limits the SP field enhancement that in the LRA sometimes diverges [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

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Hyperbolic metamaterial lens with hydrodynamic nonlocal response

Yan¹,

Mortensen²,

Wubs³

2013

Opt. Express

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We investigate the effects of hydrodynamic nonlocal response in hyperbolic metamaterials (HMMs), focusing on the experimentally realizable parameter regime where unit cells are much smaller than an optical wavelength but much larger than the wavelengths of the longitudinal pressure waves of the free-electron plasma in the metal constituents. We derive the nonlocal corrections to the effective material parameters analytically, and illustrate the noticeable nonlocal effects on the dispersion curves numerically. As an application, we find that the focusing characteristics of a HMM lens in the local-response approximation and in the hydrodynamic Drude model can differ considerably. Interestingly, sometimes the nonlocal theory predicts significantly better focusing. Thus, to detect whether nonlocal response is at work in a hyperbolic metamaterial, we propose to measure the near-field distribution of a hyperbolic metamaterial lens.Comment: 10 pages, 5 figure

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Section: Effects Of Nonlocal Response On a Hyperbolic Metamaterials Lensmentioning

confidence: 99%

“…We apply the hydrodynamic generalization of the common transfer-matrix method for lay-ered systems [23,33], and obtain the exact dispersion equation of the HMM…”

Section: Dispersion Relations Of Hyperbolic Metamaterialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hyperbolic metamaterial lens with hydrodynamic nonlocal response

Yan¹,

Mortensen²,

Wubs³

2013

Opt. Express

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“…For example, the dispersion relations of multilayer metal-dielectric layers [47][48] and thin metal film waveguides [49][50] , as well as thin metal super-lens [51][52] , reveal strong nonlocal effects in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 comparison with the local cases. However, for the coated nanoparticles with very thin metallic shells, numerical results show that nonlocal effects are very small both in near field distributions (not shown here) and in scattering efficiency spectra [see Fig.…”

Section: Acs Paragon Plus Environmentmentioning

confidence: 99%

Superscattering of Light from Core–Shell Nonlocal Plasmonic Nanoparticles

Huang

Gao

2014

J. Phys. Chem. C

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We study the scattering properties of coated nanoparticles with high-permittivity core and nonlocal plasmonic shell with full-wave nonlocal Mie theory. Both electric and artificial magnetic resonances of different orders are supported simultaneously for such coated particles. By properly engineering the aspect ratio, we can achieve not only the overlapping of electric dipole (ED) and magnetic dipole (MD) modes but also that of electric quadrupole (EQ) and magnetic quadrupole (MQ). We numerically demonstrate that there are two overlapping ways to obtain the superscattering state for core–shell nanoparticles. Furthermore, we show that the nonlocality becomes less important in the scattering of coated nanoparticles with ultrathin shell thickness but large total size due to the fact that nonlocality is essentially a surface effect.

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“…Our formalism makes it easy to choose different boundary conditions [26], and, hence, to retrieve all previous models [25,27,28] that neglect interband transitions. Using these tools, we show that the impact of nonlocality on a recently published optical negative index (n −1) lens design based on metallo-dielectric multilayers [8] can be observed, although very moderate.…”

Section: Introductionmentioning

confidence: 99%

Numerical tool to take nonlocal effects into account in metallo-dielectric multilayers

et al. 2015

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We provide a numerical tool to quantitatively study the impact of nonlocality arising from free electrons in metals on the optical properties of metallo-dielectric multilayers. We found that scattering matrices are particularly well suited to take into account the electron response through the application of the hydrodynamic model. Though effects due to nonlocality are, in general, quite small, they, nevertheless, can be important for very thin (typically below 10 nm) metallic layers, as in those used in structures characterized by exotic dispersion curves. Such structures include those with a negative refractive index, hyperbolic metamaterials, and near-zero index materials. Higher wave vectors mean larger nonlocal effects, so that it is not surprising that subwavelength imaging capabilities of hyperbolic metamaterials are found to be sensitive to nonlocal effects. We find in all cases that the inclusion of nonlocal effects leads to at least a 5% higher transmission through the considered structure.

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Effect of plasma waves on the optical properties of metal-insulator superlattices

Cited by 72 publications

References 42 publications

Hyperbolic metamaterial lens with hydrodynamic nonlocal response

Hyperbolic metamaterial lens with hydrodynamic nonlocal response

Superscattering of Light from Core–Shell Nonlocal Plasmonic Nanoparticles

Numerical tool to take nonlocal effects into account in metallo-dielectric multilayers

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