Png, G.Mickan, S.Abbott, D.Bell, J.M.Varadan, V.K.2007-01-152007-01-152006Proceedings of SPIE, 2006 / Bell, J.M., Varadan, V.K. (ed./s), vol.6038, pp.60380M-1-60380M-11081946069997808194606910277-786X1996-756Xhttp://hdl.handle.net/2440/22836© 2006 COPYRIGHT SPIE--The International Society for Optical EngineeringThe reflection characteristic of terahertz radiation (T-rays) in stratified media is being explored through the use of computer models. When T-rays are reflected off a sample, the measured T-ray signal contains coherent spectroscopic information about the sample. In the time domain, this spectroscopic information becomes the time response of the sample-a useful method for determining layer thickness and the number of interfaces in the sample. In order to confidently determine thickness and interfaces, the propagation characteristic of T-rays in a stratified medium needs to be understood. Internal reflections, interference, and water absorption within the layers can significantly alter the T-ray signal. This paper reports on a study of T-ray propagation in tissue layers inside the head, in reflection mode. Simulated results are presented and discussed.enConference paper002006086110.1117/12.6381070002365421000142-s2.0-3364567740452670Abbott, D. [0000-0002-0945-2674]