ENHANCEMENT OF STIMULATED ELECTROMAGNETIC EMISSION DURING 2 FREQUENCY IONOSPHERIC HEATING EXPERIMENTS

被引：29

作者：

BERNHARDT, PA

WAGNER, LS

GOLDSTEIN, JA

TRAKHTENGERTS, VY

ERMAKOVA, EN

RAPOPORT, VO

KOMRAKOV, GP

BABICHENKO, AM

机构：

[1] USN,RES LAB,DIV INFORMAT TECHNOL,WASHINGTON,DC 20375

[2] NIZHNIY NOVGOROD APPL PHYS INST,NIZHNII NOVGOROD,RUSSIA

[3] NIZHNIY NOVGOROD RADIOPHYS RES INST,NIZHNII NOVGOROD,RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.72.2879

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have discovered that stimulated electromagnetic emission (SEE), excited by a powerful electromagnetic (EM) wave (pump 1) in the ionosphere, can be enhanced by a second high power EM wave (pump 2) with a higher frequency. For frequency separations near 0.4 MHz, the downshifted SEE in a 40 kHz band below the frequency of pump 1 is increased by 2 dB when pump 2 is turned on. We theorize that a second EM wave generates plasma irregularities that facilitate the mode conversion of electrostatic waves to yield enhanced EM emissions from pump 1.

引用

页码：2879 / 2882

页数：4

共 33 条

[1]

[Anonymous], 1985, UAG93 WORLD DAT CTR

[2] DIRECT CONVERSION OF ORDINARY MODE INTO UPPER HYBRID WAVE BY DENSITY IRREGULARITIES IN THE IONOSPHERE [J].