An Integrated-Circuit Approach to THz Bio-Medical Applications

THz waves exhibit advantageous properties, such as low photon energies in the range of 0.4–40meV, making them attractive for many applications in fundamental science through practical imaging applications. However, their rather long wavelength still creates challenges for super-resolution imaging. The presentation will focus on an integrated-circuit approach to THz near-field imaging for ex-vivo life-science applications. The technique is intended for unique tumor margin identification and exploits the benefits of THz radiation with the required sub-wavelength optical resolution for intraoperative biological imaging without the need for scanning. The THz near-field sensor array measures the complex permittivity of biological cells on the micrometer scale. Results of this work will eventually help a surgeon to make an instantaneous (intraoperative) decision during an oncological surgery.