Second harmonic generation in nonlinear transformation of electromagnetic waves in suddenly created cold magnetized plasma: Transversal propagation

U radu je analizirana transformacija izvornog linearno polarizovanog elektromagnetskog talasa, usled slabih nelinearnosti, u elektronske i elektromagnetske oscilacije, stacionarne (prostorno promenljive i jednosmerne) i talasne elektromagnetske i elektronske modove u plazmi primenom perturbacione teorije drugog reda. Efikasnost eksitacije transverzalnih električnih modova, dvostruko veće frekvencije i dvostruko većeg talasnog broja od modova dobijenih u linearnoj teoriji, analizirana je za različite vrednosti ugaone frekvencije izvornog talasa i za vrednost ugaone elektronske žiro-frekvencije koja odgovara vrednosti ugaone elektronske razmene frekvencije.The nonlinear transformation of linearly polarized source electromagnetic wave in electron and electromagnetic plasma oscillations, stationary (rectification and space-varying) modes and travelling electron and electromagnetic plasma waves, due to a weak nonlinearity, has been analyzed by using the second order perturbation theory in radio approximation. The efficiency of excitation of the transversal secondharmonic electric wave modes with double wave number with respect to the wave number modes in the linear transformation has been studied for different values of source wave frequency, taking the electron cyclotron frequency as a parameter)