Interaction of electromagnetic waves and electrons with solid surfaces and small particles.
Item
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Title
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Interaction of electromagnetic waves and electrons with solid surfaces and small particles.
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Identifier
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AAI8820854
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identifier
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8820854
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Creator
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Das, Sanjukta.
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Contributor
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Adviser: Joel I. Gersten
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Date
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1988
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Condensed Matter
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Abstract
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In this dissertation I study both the interaction of electromagnetic waves and the interaction of electrons with solid state surfaces and small particles. In the electromagnetic problem I construct a theory to explain the continuum Raman scattering from the surface of a solid. This theory is then generalized to the case of a spherical particle. I find that the surface and particle problems have somewhat different features due to quantum size effects. ResonanceRaman scattering appears to play an important role in the case of the spherical particles. In the study of the interaction of electrons with solid state surfaces, I examine the role played by interference effects in electron energy loss spectroscopy. As in the case of low energy electron diffraction, scattering from the ionic lattice leads to an interference effect. This causes additional features to appear in the excitation spectrum for plasmon emission. In addition the effects of electron-hole pairs are considered. I have also studied the interaction of an electron with a solid state particle and derived expressions for the various excitation cross sections. The nonlocal nature of the dielectric constant is included.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
