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In this research, propagation of an optical signal through a ZnTe slab which shows electro-optic (EO) effect for terahertz frequencies is analyzed. We assume that the optical signal and the terahertz modulating signal are simultaneously present in the ZnTe slab. The slab is modeled by its nonlinear susceptibility in a one-dimensional Finite Difference Time Domain (FDTD) formulation. Using the FDTD...
In this work, a layered structure of ZnTe slabs separated by air-gaps is used to detect terahertz pulses. The structure which can be considered as a periodic structure is operating close to its stop-band edge where the transmission of the optical signal is attenuated. Applying the terahertz signal will vary the refractive index of the ZnTe slabs of the periodic structure due to the electro-optic effect...
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