Zozulya, Alex A.
Terahertz (THz) spectroscopy offers the possibility to study and characterize the dielectric response of materials. Novel developments in the generation of THz pulses allow the creation of high peak electric fields which enable the observation of nonlinear effects. This MQP deals with the development of MATLAB code using the split-step method to simulate the propagation of THz pulses in linear and nonlinear isotropic media, more specifically, liquids. Programs were developed to determine the dielectric properties of a sample through the analysis of a pulse propagated through the sample, and to calculate threshold electric field values for observing nonlinearities. The code was tested with experimental data of propagation through water samples.
Worcester Polytechnic Institute
Major Qualifying Project
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Electrical and Computer Engineering