75 research outputs found
Slow group velocity and Cherenkov radiation
Get PDFWe theoretically study the effect of ultraslow group velocities on the
emission of Vavilov-Cherenkov radiation in a coherently driven medium. We show
that in this case the aperture of the group cone on which the intensity of the
radiation peaks is much smaller than that of the usual wave cone associated
with the Cherenkov coherence condition. We show that such a singular behaviour
may be observed in a coherently driven ultracold atomic gas.Comment: 4 pages, 4 figure
Excitation of longitudinal electromagnetic waves in a relativistic electron beams (In Russian)
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Determination of the cyclotron generation suppression band width in a plasma relativistic microwave generator
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Limit currents of a relativistic electron beam in a drift chamber with a coaxial cross section
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Effect of the Distance of Plasma–Beam Interaction on the Oscillation Regimes in a Plasma Relativistic Microwave Oscillator
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