Plasmon polaritons excitation at rapidly generated plasma interface

In this paper we studied the possibility of the appearance of surface plasmon polaritons at the plasma/dielectric interface with rapidly generated plasma in the right half-space, when the field is generated by a plane source, was studied. The source was located parallel to the interface, and at an angle to it. It was shown that the frequency-converted wave outgoing from plasma boundary corresponds to the plasmon polariton in the case when the initial field is generated by the plane source located at the angle $\alpha$ to the plasma boundary for the following condition $\varepsilon_1\sin^2\alpha-\varepsilon-\omega_e^2/\omega^2>0$.