Abstract
Mode conversion of p -polarized electromagnetic waves into longitudinal plasma oscillations at resonance points in cold, unmagnetized, and stratified plasmas, where a small periodic density modulation is superimposed on a linear electron density profile, is theoretically studied. The mode conversion coefficient and the magnetic field distribution are calculated in a numerically exact manner using the invariant imbedding theory of mode conversion. It is found that resonant enhancement of mode conversion, which is sometimes as high as 100%, can be achieved by tuning the incident angle, the modulation period, or the wave frequency. This phenomenon is explained as due to the formation of a standing wave near the resonance point.
| Original language | English |
|---|---|
| Article number | 102110 |
| Journal | Physics of Plasmas |
| Volume | 17 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Oct 2010 |
Bibliographical note
Funding Information:This work has been supported by the National Research Foundation of Korea (Grant No. R0A-2007-000-20113-0) funded by the Korean Government. D.-H.L. has been supported by the WCU (Grant No. R31-10016) and KRF-2008-313-C00375.
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