Microwave radiation enhancement and self-focusing using quasi-stationary electric field in a medium with elongated nanoparticles |
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Authors: | N. R. Sadykov N. A. Skorkin |
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Affiliation: | 1.Institute of Experimental Physics,Russian Federal Nuclear Center,Snezhinsk, Chelyabinsk oblast,Russia;2.South Ural State University,Chelyabinsk,Russia |
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Abstract: | It is shown that a mechanism of microwave radiation enhancement and self-focusing can be operative in a wave channel and spatial cavity filled with air containing elongated (dumbbell-shaped) nanoparticles at a volume fraction of c 0 ∼ 10−3. This nonlinear medium can be pumped using a quasi-stationary electric field. At an oscillation frequency of Ω ∼ 1010−1011s−1, the radiation enhancement and self-focusing in a wave channel is possible over a length of Δz ∼ 50−200 m, while that in a spatial cavity can take place within a period of time Δt ∼ (2−7) × 10−7 s. |
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