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- W2143242279 abstract "A new (numerical) method is described to determine all coupled mode parameters of a complex plasmon-phonon system in a semiconductor. First a general theoretical description is given of the complex dielectric function describing such a system. Some paractically important relations are deduced. Starting from an experimentally determined reflectivity spectrum, the dielectric function is determined at a number of discreate frequencies by means of Kramers-Kronig analysis. A complete background is given for a numerical method to determine all relevant mode parameters, especially the coordinates of poles and zeros in the complex frequency plane, from this spectrum. Finally the new method is applied to a test spectrum. The results are discussed and compared with those of other methods. Es wird über eine neue (numerische) Methode zur Bestimmung von allen gekoppelten Modeparametern eines komplizierten Plasmon-Phonon-Systems in einem Halbleiter berichet. Eine all- gemeine theoretische Beschreibung der Dielektrizitätsfunktion eines solchen Systems wird gegeben. Einige praktisch wichtige Beziehungen werden abgeleitet. Mit einem experimentell bestimmten Reflexionsspektum als Ausgangspunkt wird aus einer Kramers-Kronig-Analyse die dielektrische Funktion für eine große Menge von diskreten Frequenzen berechnet. Alle erforderlichen Informationen für eine numerische Methode zur Bestimmung aller relevanter Modeparameter werden angegeben, besonders der komplexen Polstellen und Nullstellen. Schließlich wird die neue Methode geprüft mit einem Testspektrum. Die Resultate werden diskutiert und mit Resultaten anderer Methoden verglichen." @default.
- W2143242279 created "2016-06-24" @default.
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- W2143242279 date "1981-08-01" @default.
- W2143242279 modified "2023-09-26" @default.
- W2143242279 title "A New Method to Determine the Coupled Mode Parameters of a Plasmon-Multiphonon System" @default.
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- W2143242279 doi "https://doi.org/10.1002/pssb.2221060229" @default.
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