Radiation from Cerenkov Wakes in a Magnetized Plasma

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.4194· OSTI ID:553137

Yoshii, J; Lai, C H; Katsouleas, T ^[1]; Joshi, C; Mori, W B ^[2]

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1. University of Southern California, Department of Electrical Engineering, Electrophysics, Los Angeles, California 90089-0484 (United States)
2. University of California, Los Angeles, Department of Electrical Engineering, Los Angeles, California 90024 (United States)

The Cerenkov wake excited by a particle beam or a short laser pulse in a perpendicularly magnetized plasma is analyzed. The wake couples to electromagnetic radiation of approximate frequency {omega}{sub p} at the plasma/vacuum boundary. The radiation amplitude is {omega}{sub c}/{omega}{sub p} times the amplitude of the wake excited in the plasma (for a sharp boundary). Particle-in-cell simulations verify the scaling laws. Since plasma wakes as high as a few GeV/m are produced in current experiments, the potential for a high-power (i.e., GW) coherent microwave to THz radiation source exists. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: University of Southern California
• DOE Contract Number: FG03-92ER40745
• OSTI ID: 553137
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
CHERENKOV RADIATION
ELECTROMAGNETIC RADIATION
EXCITATION
MAGNETIZATION
PARTICLE BEAMS
PLASMA
SCALING LAWS
WAKEFIELD ACCELERATORS