A microscope for producing an image of a target using THz radiation. The microscope comprises a source for providing an optical pump pulse and an optical probe pulse; a THz emitter for activation by pump pulse to emit a THz pulse that irradiates the target to form a target-modified THz pulse; a THz detector...http://www.google.com/patents/US6977379?utm_source=gb-gplus-sharePatent US6977379 - T-ray Microscope
