Specific aspects of terahertz time-domain spectroscopy

Abstract

This bachelor thesis deals with terahertz waves and its applications in time-domain spectroscopy. Properties of this radiation are foundation at a lot of technologies and applications, which are presented. Significant part of this thesis is proposition of new experimental method for the Gouy phase compensation at terahertz transmission measurements. The method will be published in the scientific paper [1] and was presented at the international conference NanoOstrava 2017 in form of the oral presentation. This research is extended in this thesis by simulations compared with an experiment. My attention is further focused to modeling of physical processes related to ultrashort pulses. Results, which are gained from these simulations, allow to me understand fundamentals principles for proposition of new experimental setup in our laboratories. This setup will be oriented to use ultrashort pulses not only for the generation of the terahertz radiation and will be object of my future study.

[1] P. Koleják, K. Postava, M. Mičica, P. Kužel, F. Kadlec, and J. Pištora. Experimental gouy phase shift compensation in terahertz time-domain spectroscopy. J. Phot. Nanostr., (in print, 2018).