Accessibility navigation

Two methods for modelling the propagation of terahertz radiation in a layered structure

Walker, G. C., Berry, E., Smye, S.W., Zinov'ev, N.N., Fitzgerald, A.J., Miles, R.E., Chamberlain, M. and Smith, M.A. (2003) Two methods for modelling the propagation of terahertz radiation in a layered structure. Journal of Biological Physics, 29 (2-3). pp. 141-148. ISSN 0092-0606

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1023/A:1024484523964


Modelling the interaction of terahertz(THz) radiation with biological tissueposes many interesting problems. THzradiation is neither obviously described byan electric field distribution or anensemble of photons and biological tissueis an inhomogeneous medium with anelectronic permittivity that is bothspatially and frequency dependent making ita complex system to model.A three-layer system of parallel-sidedslabs has been used as the system throughwhich the passage of THz radiation has beensimulated. Two modelling approaches havebeen developed a thin film matrix model anda Monte Carlo model. The source data foreach of these methods, taken at the sametime as the data recorded to experimentallyverify them, was a THz spectrum that hadpassed though air only.Experimental verification of these twomodels was carried out using athree-layered in vitro phantom. Simulatedtransmission spectrum data was compared toexperimental transmission spectrum datafirst to determine and then to compare theaccuracy of the two methods. Goodagreement was found, with typical resultshaving a correlation coefficient of 0.90for the thin film matrix model and 0.78 forthe Monte Carlo model over the full THzspectrum. Further work is underway toimprove the models above 1 THz.

Item Type:Article
ID Code:18834
Uncontrolled Keywords:Biological tissue, modelling, Monte Carlo, simulation, skin, terahertz

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation