Terahertz resonance response of biological tissue placed on a silicon nanostructure

Abstract

We present a method for the measurements of the tetrahertz (THz) resonance response of DNA oligonucleotides deposited on a silicon nanosandwich (SNS). It is shown that the SNS device can be used to generate a THz resonance response within living biotissue. The technique we propose measures changes of the longitudinal conductance and the lateral voltage with the SNS device in a Hall geometry. The mechanism of the THz response is discussed, with a model of the generation of Shapiro steps. The THz resonance response from living biotissues will aid the diagnosis of oncological disease and, in general, form the basis of a rapid diagnosis in practical medicine.