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- W1991387913 abstract "The theory presented in Part I [1] for the Raman scattering efficiency of polaritons in uniaxial piezoelectric crystals is used to interpret experiments on the dependence of the scattered intensities on the direction of the polariton wave vector kp. The measurements have been performed with BeSO4 · 4 H2O in the v3-region of the SO ions at 1100 cm−1 for the limit (kp ≫ ωp/c). kp is rotated in the (x, y) and (x, z) planes, and a good agreement between theory and experiment is obtained. The contributions of the defromation potential and the macroscopic electric field to the scattering efficiency are determined in relative units as a function of the direction of k. Die in Teil I [1] dargestellte allgemeine Theorie der Intensität der Ramanstreuung an Polaritonen in einachsigen piezoelektrischen Kristallen wird für den Grenzfall großer Polaritonen-Wellenzahlvektoren (kp ≫ ωp/c) mit Messungen der Richtungsabhängigkeit der Streuintensitäten der v3-Schwingungen (1100 cm−1) der SO-Ionen in BeSO4 · 4 H2O verglichen. Es wird speziell die Variation der Intensität bei einer Drehung von kp in der (x, y)- und der (x, z)-Ebene untersucht. Es ergibt sich eine gute Übereinstimmung von Theorie und Experiment. Aus diesen Experimenten werden die relativen Beiträge des Deformationspotentials und des makroskopischen elektrischen Feldes zur Streuintensität als Funktion der Richtung von kp gewonnen." @default.
- W1991387913 created "2016-06-24" @default.
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- W1991387913 date "1972-01-01" @default.
- W1991387913 modified "2023-09-27" @default.
- W1991387913 title "Raman scattering intensity of polaritons for general wave vectors. II. Experimental investigations in BeSO4·H2O" @default.
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- W1991387913 doi "https://doi.org/10.1002/pssb.2220490109" @default.
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