Abstract
The main objective of the paper is to discuss the amplitude modulation and demodulation of the electromagnetic wave in the presence of high dielectric constant. The high dielectric constant in PZT materials is developed by the substitution of suitable doping element either at A+ sites or B sites in ABO3 crystal structure. The high dielectric constant of the material is due to the presence of stain in the existing lattice, known as strain dependent dielectric constant (SDDC). Amplitude modulation as well as demodulation of the electromagnetic wave in a transversely magnetized material taking SDDC is analyzed in different magnetostatic field at the different applied electric field. For the numerical analysis, Pb(Zr,Ti)O3 is selected which is irradiated by a pump wave of frequency Ωo=1.78*10 14 sec -1 with dielectric constant e =3450. It has been observed that the total absorption of the waves takes place in all the wavelength regimes when the cyclotron frequency Ωc becomes exactly equal to 1/2 2 2 0 c v
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