Showing papers on "Surface plasmon resonance published in 1976"
TL;DR: The authors' results indicate that when the plasmon decays by ionization it produces a spectrum of only subexcitation electrons, and a heuristic model of the liquid based primarily upon the extensive body of gas phase generalized oscillator strength data is developed.
Abstract: both a redistribution of oscillator strengths relative to the gas phase, and the possible existence of a collective oscillation (plasmon). We investigate the effects of such a plasmon on the partition of energy deposited by fast electrons. To accomplish this, we develop a heuristic model of the liquid based primarily upon the extensive body of gas phase generalized oscillator strength data. The model has one major free parameter, the strength of the 21.4 eV plasmon. Using standard resonance shapes to approximate the energy loss spectrum of the plasmon, we estimate that the water plasmon has an oscillator strength of 2 (+J about 0.6) and a half-width of about 3.5 eV. We then calculate the slowing down of an electron in liquid water according to continuous-slowing-down theory, and after allowing for plasmon decay, compare the yields for the liquid and gas phases. Our results indicate that when the plasmon decays by ionization it produces a spectrum of only subexcitation electrons. We find a modest change in the yields with the eV per-ion-pair lowered from 30.7 in the gas to 28.5 in the liquid.
84 citations
TL;DR: In this paper, the bright hollow cone of scattered light from a silver film due to surface plasmon excitation is discussed, and the power per solid angle scattered into the cone on the prism side of the metal film is an order of magnitude greater than that scattered on the air side.
54 citations
TL;DR: In this paper, a hydrodynamic model was proposed to explain the plasma resonance absorption of fine metal particles in terms of the diffuseness of the metal particle surface, and some new data were also presented, that agree with the findings of Smithard et al.
36 citations
TL;DR: In this article, the proper application of the established theory of electron-ripplon scattering for electrons trapped on helium correctly predicts the absolute linewidth, as a function of external electric field, observed in a recent plasmon experiment.
Abstract: We show that the proper application of the established theory of electron-ripplon scattering for electrons trapped on helium correctly predicts the absolute linewidth, as a function of external electric field, observed in a recent plasmon experiment.
31 citations
19 citations
TL;DR: In this paper, the reflection of light at rough gold films has been measured in the region of surface plasmon (SP) excitation and compared with a smooth gold film, where the SP resonance minima are shifted to larger wavevectors and their halfwidth is enlarged with increasing surface roughness.
16 citations
TL;DR: In this paper, a semi-classical theory of surface plasmon excitation by electrons following a non touching parabolic orbit above a metal surface is given, and the expression for the scattering probability is found to be identical to that obtained in a quantum mechanical calculation 1 in the appropriate limit.
12 citations
TL;DR: In this article, the two-dimensional electron gas in the inversion layer of an MOS structure gives rise to a 2D plasmon, which has not yet been observed.
11 citations
TL;DR: In this article, a new low energy surface plasmon on Mo (100) is revealed by inelastic electron spectroscopy, and the significance for XPS spectra is discussed.
8 citations
TL;DR: For a sample with plasma frequency varying exponentially from ω ps at the surface to a larger value ω pb in the bulk, and moderate damping, the authors showed that the long wavelength surface plasmon dispersion has a single branch that is reentrant at ω = ωps.
7 citations
TL;DR: In this paper, the authors studied the radiation reflection from a rough metallic surface, particularly in the spectral range of surface plasmon, with the help of Maxwell's equations without neglecting the imaginary part 2 of the dielectric constant.
Abstract: We study the radiation reflection from a rough metallic surface, particularly in the spectral range of surface plasmon, with the help of Maxwell's equations without neglecting the imaginary part 2 of the dielectric constant. We calculate numerical solutions upto first order approximation in the case of almost plane aluminium or magnesium surfaces illuminated at normal incidence.