Showing papers on "Surface plasmon resonance published in 1981"
TL;DR: In this article, surface plasmon resonances at prolate-spheroidally shaped irregularities on roughened silver, copper, and gold surfaces were shown to greatly increase the Raman scattering cross sections of adsorbed molecules by increasing both the local and the local.
72 citations
TL;DR: In this paper, the interaction of light with clusters and random distributions of metal hemispheroids on a perfect conducting flat surface is studied and significant SERS enhancements are found to arise from multiple plasmon contributions to the surface electromagnetic fields.
67 citations
TL;DR: The optical properties of the noble metal copper were determined by computer fitting the experimentally obtained attenuated total internal reflection (ATR) spectra of its surface plasmon in the visible spectral region (0.42 to 0.63 μm) as mentioned in this paper.
Abstract: The optical properties of the noble metal copper are determined by computer fitting the experimentally obtained attenuated total internal reflection (ATR) spectra of its surface plasmon in the visible spectral region (0.42 to 0.63 μm). The dispersion curves of the surface plasmon resonance of copper are determined; they show that the resonance exists on the steep absorption edge of ϵ2 at 2.16 eV. This absorption edge, which is due to the d-band to Fermi level transition, causes the large shift in the location of the surface plasmon excitation from ϵ1(ωs) = −1 to ϵ1(ωs) = −4.7 and causes the true resonance to occur in the complex frequency plane.
34 citations
25 citations
21 citations
TL;DR: Using the hydrodynamic jellium model, it was shown that a surface plasma oscillation excited at the surface of the semi-infinite metal induces a finite amount of angular momentum to the system, so that, it is conjectured that the surface plasmon has a spin quantum number S = 1 with definite polarization as discussed by the authors.
16 citations
TL;DR: In this paper, an analytic expression for the change in the propagation constant of a surface plasmon, KΔβ, as a function of the dielectric constants of the two media, the nonlinear refractive index of the semiconductor, n2,E, and the power carried by the plasman is presented.
Abstract: A surface plasmon that is excited on the interface separating a metal and a nonlinear semiconductor has a propagation constant that depends on the power carried by the plasmon. We present an analytic expression for the change in the propagation constant of the plasmon, KΔβ, as a function of the dielectric constants of the two media, the nonlinear refractive index of the semiconductor, n2,E, and the power carried by the plasmon. We define a figure of merit, P0, which is the power required for shifting the phase of the plasmon by π/2 along a distance S, (S = 1/2α, where α is the plasmon decay constant), and find the wavelength dependence of KΔβ and P0.
14 citations
TL;DR: In this paper, the surface plasmon modes of Ag thin films were studied by the light scattering method in the thickness range down to 100 A. The observed thickness dependence of the resonance peaks was analysed in detail by the theory of Kretschmann.
11 citations
TL;DR: In this paper, the effect of a superficial plasma layer on the substrate surface plasmon dispersion taking into account non local effects related to plasma oscillations in the surface layer is analyzed.
5 citations
TL;DR: In this article, an idealized stage-1 acceptor intercalate is described by means of a modified Visscher-Falicov model with alternating electron and hole layers. And the dielectric response within the random-phase approximation, as a function of momentum, frequency, and effective mass ratio m e / m h > 1, is calculated.
2 citations
TL;DR: In this article, the surface plasmon dispersion relation for a two component degenerate plasma system is obtained in spherical geometry, using the hydrodynamical model, and the general solution for arbitrary value of angular quantum number l has been shown to have two branches, one of higher frequency and another of lower frequency.
TL;DR: The surface plasmon damping due to carriers scattering at the statistically rough (semiconductor-dialectric) interface is considered in this paper, where the specular parameter and integral relation are used as the boundary condition for a non-equilibrium part of the distribution function.
TL;DR: In this article, the resonance scattering of light by molecules adsorbed on metallic surfaces is discussed, revealing an enhancement and a level splitting whose characteristics are sensitive to the form of the surface plasmon dispersion relation.
Abstract: The resonance scattering of light by molecules adsorbed on metallic surfaces is discussed. The scattering reveals an enhancement and a level splitting whose characteristics are sensitive to the form of the surface plasmon dispersion relation. Different forms of this dispersion relation are considered and their implications for the spectral features of the scattered light are explored.
TL;DR: Using a model proposed by Endriz and Spicer for the calculation of the photo-electric yield in the spectral range of surface plasmon excitation, and, the surface Plasmon field equations established by Leroux-Mousselly, the authors obtained a good agreement between calculation and data for a slightly rough indium surface.