CYCLOTRON-RESONANCE IN A PURE ELECTRON-PLASMA COLUMN

被引：32

作者：

GOULD, RW

LAPOINTE, MA

机构：

[1] Department of Applied Physics, California Institute of Technology, Pasadena

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.67.3685

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate experimentally the effects of plasma rotation and particle thermal velocities on cyclotron resonance in a long cylindrical pure electron plasma column of low density (omega(p)2 << omega(c)2). A single m = 1 mode (e(im-theta-i-omega-t)) is found whose frequency-omega is down-shifted from omega(c) = eB/m(e) by an amount equal to the low-frequency diocotron mode frequency (<omega(p)2>/2-omega(c)). For m = 2,3,4,... sets of modes are found which are Doppler shifted upward from omega(c). We explain these as radially trapped and azimuthally propagating Bernstein modes.

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页码：3685 / 3688

页数：4

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