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.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Aranda, Miguel Angel

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-042618-105637

Advisor

• Zozulya, Alex A.
• Titova, Lyubov
• Ludwig, Reinhold

Year

• 2018

Date created

• 2018-04-26

Resource type

• Major Qualifying Project

Major

• Interdisciplinary

Rights statement

• In Copyright