Showing papers on "Surface plasmon resonance published in 1975"
TL;DR: In this article, a quantum theory of the coupling of excited molecules to the surface plasmon modes of a metal is described, and formulas for the separate decay into s photon, p photon, and surface PLAsmon channels valid for all molecule−metal separations are given.
Abstract: A quantum theory of the coupling of excited molecules to the surface plasmon modes of a metal is described. For radiative decay, formulas are given for the separate decay into s photon, p photon and surface plasmon channels valid for all molecule−metal separations. Calculations of the quantum yield of fluorescence are described. The total decay rate is shown to equal that given by classical theory. Other processes considered briefly are the Raman effect and resonance energy transfer between identical molecules.
200 citations
TL;DR: In this paper, the authors describe a simple experiment and theory for a senior level undergraduate investigation of surface plasmons in silver films, where an ∠500-A-thick film is evaporated on the hypotenuse face of a right glass prism.
Abstract: Surface plasmon phenomena are a topic of considerable current interest. We describe a simple experiment and theory for a senior level undergraduate investigation of surface plasmons in silver films. An ∠500‐A‐thick silver film is evaporated on the hypotenuse face of a right glass prism. Light (p‐polarized) from a He–Ne laser is incident through the prism on the metal film. At an angle of incidence a few degrees greater than the critical angle for total reflection, a sharp minimum in the reflected light is observed, corresponding to the excitation of the surface plasmon. The minimum in the reflectivity results from the absorption of the resonantly enhanced surface plasmon mode in the silver film. The dispersion relation for the surface plasmon and the reflectivity due to the excitation of this normal mode are calculated. Only a modest vacuum of ∠10−3 Torr is necessary to produce the required thin silver films.
95 citations
TL;DR: The resonance excitation of surface plasmons, detected by the scattered-light method, is used in a number of experiments on Ag, Au, and Cu films as mentioned in this paper.
Abstract: The resonance excitation of surface plasmons, detected by the scattered-light method, is used in a number of experiments on Ag, Au, and Cu films. These include (i) the determination of optical constants, (ii) the use of a multilayered structure allowing sequential excitation of plasmons on both surfaces of a film, (iii) the study of interference between bulk- and surface-plasmon scattered light, and (iv) the demonstration of surface anisotropy on films grown with the metal vapor beam striking the substrate at an oblique angle. The optical-constant measurements, which were done on the substrate interface, agree with data on bulk samples prepared and measured in vacuum and with film data by Dujardin and Th\`eye, but they disagree with film data by Schulz and by Johnson and Christy. In samples grown on 77-K substrates a strong increase in bulk scattering is observed which interferes with the roughness-coupled plasmon signal producing a dispersive line shape rather than the usual Lorentzian.
65 citations
TL;DR: In this article, it was shown that the principal surface plasmon mode on the surface of a semi-infinite metal has a frequency ω = ω p 2 F which is independent of the nature of the surface density profile.
50 citations
40 citations
TL;DR: The dispersion of the plasmon and its resonance-like penetration into the single particle excitation band has been measured by electron spectroscopy of polycrystalline Al up to wave number k = 2.1 A −1.
27 citations
TL;DR: In this article, hydrodynamics effects when used in conjunction with a diffuse surface are found to result in qualitatively new surface plasmon behavior in the optical region ( q≈ ω c ).
23 citations
TL;DR: In this article, the reflected second harmonic light from alkali metal films with the simultaneous excitation of the surface plasmon mode was calculated, and it was shown that the harmonic enhancement is closely related to the surface density and exhibits a strong dependence on the angle of incidence, film thickness, and the linear optical constants of the metal film.
18 citations
TL;DR: In this article, the optical excitation and decay of surface plasmons on Ag films is observed as an annular cone of light when the substrate is in the form of a hemisphere.
14 citations
9 citations
TL;DR: In this paper, the dispersion relation for the surface plasmon is calculated in an external magnetic field parallel to the surface when the wave propagates perpendicular to the magnetic field.
TL;DR: In this paper, a measurement technique for the observation of rapid layer growth is reported, and relative variations of observable parameters with variations of the refractive index of silver are compared with ellipsometric data from the literature.
Abstract: Optical excitation of non-radiative surface plasma waves at the interface between a metal and another medium is used for determining certain parameters of the metal or the adjoining substance. Relative variations of observable parameters with variations of the refractive index of silver are compared with ellipsometric data from the literature. Cover layer thickness changes can be observed and variations in the refractive index of the adjacent medium can be discriminated against by recording the position together with the shape of the reflection curve. A measurement technique for the observation of rapid layer growth is reported.
Journal Article•
TL;DR: In this paper, a measurement technique for the observation of rapid layer growth is reported, and relative variations of observable parameters with variations of the refractive index of silver are compared with ellipsometric data from the literature.
Abstract: Optical excitation of non-radiative surface plasma waves at the interface between a metal and another medium is used for determining certain parameters of the metal or the adjoining substance. Relative variations of observable parameters with variations of the refractive index of silver are compared with ellipsometric data from the literature. Cover layer thickness changes can be observed and variations in the refractive index of the adjacent medium can be discriminated against by recording the position together with the shape of the reflection curve. A measurement technique for the observation of rapid layer growth is reported.
TL;DR: In this article, it is shown that surface plasmons can be excited in this way if the real part of the dielectric constant of the metal layer has a value less than -1.