Stimulated electromagnetic emission polarization under different polarizations of pump waves
The results of investigations into the stimulated electromagnetic emission (SEE) polarization under different modes of the pump wave polarization are presented. The present results were obtained in November 2012 during a heating campaign utilizing the SPEAR (Space Plasma Exploration by Active Ra...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2015-03-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/33/295/2015/angeo-33-295-2015.pdf |
| Summary: | The results of investigations into the stimulated electromagnetic emission
(SEE) polarization under different modes of the pump wave polarization are
presented. The present results were obtained in November 2012 during a
heating campaign utilizing the SPEAR (Space Plasma Exploration by Active
Radar) heating facility, transmitting in both O- and X-mode polarization, and
a PGI (Polar Geophysical Institute) radio interferometer capable of recording
the polarization of the received radiation. The polarization ellipse
parameters of the SEE DM (downshifted maximum) components were determined
under both O-mode and X-mode polarization of the pump waves. The polarization
direction of the SEE DM component was preserved under different polarizations
of the pump waves. Different polarizations of the pump waves have a different
SEE generation efficiency. The intensity of the DM component is observed to
be greater during O-mode pumping. In addition, the numbers of observed SEE
features are also greater during O-mode pumping. |
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| ISSN: | 0992-7689 1432-0576 |