ECE Distinguished Seminar Series: Terahertz Sensing Technology, Part 1

All dates for this event occur in the past.

Dreese Laboratories, room 260
2015 Neil Ave.
Columbus, OH 43210
United States



Prof. Michael Shur
Patricia W. and C. Sheldon Roberts Professor
Rensselaer Polytechnic Institute


Terahertz sensing technology has a promise of many breakthrough and enabling applications including: detection of biological and chemical hazardous agents; cancer detection; detection of mines and explosives; enhancement of people, building, and airport security; covert communications (in THz and sub-THz windows); and applications in radioastronomy and space research. This tutorial will review the famous THz gap and the-state-of-the-art of existing THz sources, detectors, and sensing systems. After completing this course you should be able to develop an understanding of: THz sensing of biological material; Broadband THz reflection and transmission detection of concealed objects; THz explosive identification; THz nanocomposite
spectroscopy; and THz remote sensing.

Keywords: B , Back Wave Oscillator, Carcinotron, Explosive detection, Gunn diode, HEMT (High Electron Mobility Transistor), HFET, MODFET, NEP, Photonics, Plasma wave electronics, Plasma waves, Quantum cascade laser, TEGFET, Terahertz Electronics, Terahertz radiation


Shur's work with plasma wave excitation in submicron field effect transistors (FET) and related device structures should allow his lab to develop a new generation of solid-state terahertz (THz) tunable devices that will support numerous applications in biotechnology, microelectronics, and defense. His research has shown that a short channel field effect transistor (FET) has a resonance response to electromagnetic radiation at the plasma oscillation frequencies of the two dimensional electrons in the device. The devices which use this resonance response should operate at much higher frequencies than conventional, transit-time limited devices — in the terahertz range — since the plasma waves propagate much faster than electrons. Recently, his team reported on a resonant detector operating in the terahertz range using an AlGaAs/GaAs 0.15 micron gate FET.

Hosted by: Paul R. Berger

Please note that Part 2 will be presented by Prof. Kubilay Sertel offering an update of the state‐of‐the‐art in terahertz sensing (Fall 2013 semester).


Category: Seminar