1. An electromagnetic radiation detector comprising: a substrate; a nanotube fabric disposed on the substrate, the nanotube fabric comprising a non-woven network of nanotubes; first and second conductive terminals, each in electrical communication with the nanotube fabric, the first and second conductive terminals disposed in space relation to one another; wherein the nanotube fabric is tuned to be sensitive to a predetermined range of electromagnetic radiation such exposure to the electromagnetic radiation induces a change in impedance between the first and second conductive terminals.