A theory of plasmon exciton coupling in insulators |
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| Authors: | T. Miyakawa |
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| Affiliation: | National Defense Academy, Yokosuka, Japan |
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| Abstract: | A formalism is proposed to evaluate the coupling constant of excitons to longitudinal polarization waves in insulators. Coupling constant is proportional to the normalization factor of longitudinal excitation state wave function and is enhanced for plasmon more than that expected from oscillator strength. The result seems to explain plasmon replicas observed recently. |
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