InhaltsangabeSpectroscopy in the Terahertz Spectral Region.- Terahertz Imaging.- Free-Space Electro-Optic Techniques.- Photomixers for Continuous-Wave Terahertz Radiation.- Applications of Optically Generated Terahertz Pulses to Time Domain Ranging and Scattering.- Bio-medical Applications of THz Imaging.- Electronic Sources and Detectors for Wideband Sensing in the Terahertz Regime.