dorsal/arxiv
View SchemaFine structure of Vavilov-Cherenkov radiation near the Cherenkov threshold
| Authors | V. G. Kartavenko, G. N. Afanasiev, W. Greiner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9907010 |
| URL | https://arxiv.org/abs/nucl-th/9907010 |
| DOI | 10.1103/PhysRevE.68.066501 |
| Journal | Phys.Rev.E68:066501,2003 |
Abstract
We analyze the Vavilov-Cherenkov radiation (VCR) in a dispersive nontransparent dielectric air-like medium both below and above the Cherenkov threshold, in the framework of classical electrodynamics. It is shown that the transition to the subthreshold energies leads to the destruction of electromagnetic shock waves and to the sharp reduction of the frequency domain where VCR is emitted. The fine wake-like structure of the Vavilov-Cherenkov radiation survives and manifests the existence of the subthreshold radiation in the domain of anomalous dispersion. These domains can approximately be defined by the two phenomenological parameters of the medium, namely, the effective frequency of oscillators and the damping describing an interaction with the other degrees of freedom.
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"abstract": "We analyze the Vavilov-Cherenkov radiation (VCR) in a dispersive\nnontransparent dielectric air-like medium both below and above the Cherenkov\nthreshold, in the framework of classical electrodynamics. It is shown that the\ntransition to the subthreshold energies leads to the destruction of\nelectromagnetic shock waves and to the sharp reduction of the frequency domain\nwhere VCR is emitted. The fine wake-like structure of the Vavilov-Cherenkov\nradiation survives and manifests the existence of the subthreshold radiation in\nthe domain of anomalous dispersion. These domains can approximately be defined\nby the two phenomenological parameters of the medium, namely, the effective\nfrequency of oscillators and the damping describing an interaction with the\nother degrees of freedom.",
"arxiv_id": "nucl-th/9907010",
"authors": [
"V. G. Kartavenko",
"G. N. Afanasiev",
"W. Greiner"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevE.68.066501",
"journal_ref": "Phys.Rev.E68:066501,2003",
"title": "Fine structure of Vavilov-Cherenkov radiation near the Cherenkov threshold",
"url": "https://arxiv.org/abs/nucl-th/9907010"
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