Terahertz Imaging
THz radiation, or far-infrared radiation, is light with a frequency in the range of
0.1 to 30 THz. This range is a largely underexplored spectral region in which we pursue
both applied and fundamental research.
Above is one of our imaging results. We used THz radiation to look through a codekey. THz radiation easily passes through the plastic, but is blocked by the small magnets inside. White spots indicate positions where there are no magnets. As you can see, we have the ability to look inside things. You'll find more THz images here.(Caution, total of 190 kB of images!) If you want a little background on THz radiation, you are invited to read the introduction to THz radiation.
Current and past THz projects are:
Light through a small hole (new)
Orientation dependence of THz pulse detection in
ZnTe
THz emitter with a record dynamic range, based on a
Ti:sapphire oscillator
THz dielectric properties of polystyrene foam
THz microscope: micrometer resolution with
millimetre waves
