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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Plasma frequency demand for mode conversion processes from slow Z-mode to LO-mode waves in an inhomogeneous plasma

Fig. 2

Conversion efficiency as a function of the spatial scale of the density gradient in the case of (a) \(\omega = 2.03\omega_{c}\) with \(\theta = 65^{ \circ }\) and (b) \(\omega = 2.03\omega_{c}\) with \(\theta = 58^{ \circ }\). The former case corresponds to the condition that two mode branches are disconnected (there is an evanescent zone between them), while in the latter case two mode branches are connected (Kalaee et al. 2009)

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