Optical properties of anthracene single crystals in the excitonic region of the spectrum between 4 and 10.5 eV |
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Authors: | E.E. Koch A. Otto |
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Affiliation: | Sektion Physik der Universitat München, Munich, Germany |
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Abstract: | The optical constants in the photon energy range between 4 and 10.5 eV for E ?b on (001) and E ?L and E ⊥ L on the (010) plane are discussed. In particular the influence of macroscopic fields on the optical properties of anisotropic crystals is considered. For E ? a on the (001) plane reflection spectra have been measured at various angles of incidence. These data and results obtained recently by Hymowitz and Clark for several artificially prepared crystal faces are discussed on the basis of the frequency dependend dielectric functions. New information on the directional dispersion of exciton bands is thus obtained. |
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