what are mm waves?

Millimetre waves occupy the region of the electromagnetic spectrum between microwaves and the far infrared. The particular properties afforded by wavelength in the 1 to 10 millimetre range make them suited to a variety of tasks from spectroscopy to radar to imaging, all of which we do here at St Andrews. Millimetre waves are generally acknowledged as encompassing frequencies between 30 and 300GHz.

At these high frequencies, we use techniques borrowed from both microwaves and from the infrared. In particular, the group’s research emphasises quasi-optical techniques.

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Taken from our Vision for the Future outreach project.