Subluminal and superluminal parametric doppler effects in the case of light reflection from a moving smooth medium inhomogeneity |
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| Authors: | N. N. Rozanov |
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| Affiliation: | 1. Vavilov State Optical Institute, St. Petersburg, 199034, Russia
2. St. Petersburg National Research University of Information Technologies, Mechanics, and Optics, St. Petersburg, 197101, Russia
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| Abstract: | The reflection of test radiation from a smooth inhomogeneity of medium characteristics propagating with a subluminal or superluminal velocity is analyzed. The equations describing the propagation of the forward- and counter-propagating waves in such an inhomogeneous medium are derived. Quasi-phase conjugation is demonstrated in the case of superluminal inhomogeneities. The Bragg resonance conditions are formulated and the conditions for increasing the reflection coefficient of radiation from an inhomogeneity are discussed. |
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