Terahertz probe

A cantilever comprising:

• a first conductive line, a second conductive line, and a third conductive line extending on a substrate;
• a microtip arranged on the substrate;
• an emitter antenna arranged on the microtip, connected to each of the first to third conductive lines, and configured to produce a scattering signal of a terahertz wave band;
• and
• a detector antenna arranged on the microtip, and adjacent to the emitter antenna,
• wherein the first to third conductive lines comprise parts extending side-by-side.

A cantilever comprising:

• a substrate;
• a microtip arranged on the substrate;
• an emitter antenna arranged on the microtip and configured to produce a scattering signal of a terahertz wave band;
• a first detector antenna arranged on the microtip, and adjacent to the emitter antenna;
• and
• a second detector antenna arranged on the microtip, and spaced apart from the first detector antenna with the emitter antenna in-between,
• wherein the emitter antenna comprises:
• a first emitter electrode;
• a second emitter electrode adjacent to the first emitter electrode;
• a third emitter electrode spaced apart from the first emitter electrode with the second emitter electrode in-between;
• and
• a scattering part connecting the first and second emitter electrodes with each other.