1975
DOI: 10.1002/pssb.2220690217
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Changes of the excitonic optical properties of CdS introduced by an electron beam

Abstract: Reflection spectra and luminescence in the exciton region of CdS a t 80 K under the influence of a low energy electron beam (2 to 3 keV) have been investigated. Long-term changes of the spectral lineshape have been observed. It is found that the electron beam produces a negative surface charge, the electric field of which dissociates the excitons in a surface layer. The reflected intensity of light is determined by interference of waves reflected a t the boundaries of the exciton-free layer. The lineshape of t… Show more

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Cited by 11 publications
(2 citation statements)
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“…The polarization is assumed to be parallel to the electric-field vector of the light wave and perpendicular to the wave vector of its propagation k. The direction of k is chosen such that the polarizability tensor has one main axis Ilk and the others I k in directions that do not depend on the magnitude of k. The dependence of ~( k ) in the dead layer is neglected as well as that of y(k). Let us separate in (34) the real and imaginary parts of E and substitute them into (12). Then the equation = (Fy sin2 (p12 cos2 (pI2 is obtained.…”
Section: Effect Of Spatial Dispersion On the Positions Of The Extremamentioning
confidence: 99%
See 1 more Smart Citation
“…The polarization is assumed to be parallel to the electric-field vector of the light wave and perpendicular to the wave vector of its propagation k. The direction of k is chosen such that the polarizability tensor has one main axis Ilk and the others I k in directions that do not depend on the magnitude of k. The dependence of ~( k ) in the dead layer is neglected as well as that of y(k). Let us separate in (34) the real and imaginary parts of E and substitute them into (12). Then the equation = (Fy sin2 (p12 cos2 (pI2 is obtained.…”
Section: Effect Of Spatial Dispersion On the Positions Of The Extremamentioning
confidence: 99%
“…One may note the study of the phase of the reflected light along with its amplitude, temperature dependence [5,12,131 as well as the study of obliquely incident light beams [6, 11, 14 to 161 including Brewster's angle [17]. Results of these studies are well reviewed in [18].…”
Section: Introductionmentioning
confidence: 99%