The intrinsic Josephson tunnel junctions are naturally formed inside several high-temperature superconductors (HTS), like Bi2Sr2CaCu2O8 (Bi2212). These junctions are only 1.5 nm thick assuring a strong electromagnetic interaction between neighboring junctions. The interaction makes it possible to synchronize Josephson radiation from several hundred junctions (see e.g. L. Ozyuzer, et al., Science 318, 1291 (2007)).
We aim at building a compact primary THz source based on intrinsic Josephson effect and reach reaching ~1 mW of power. The source can then be used for applications in THz imaging, non-destructive inspection, detection of cancer tissues, screening for concealed weapons and explosives, and ultra-wideband communication.