Semiconductor Detectors, Mixers, and Frequency Multipliers for the Terahertz Band |
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Authors: | V. G. Bozhkov |
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Affiliation: | 1. Federal State Enterprise — Research Institute of Semiconductor Devices, Tomsk, Russia
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Abstract: | The state of the art in the development of semiconductor detectors, mixers, and frequency multipliers based on Schottky-barrier diodes (SBDs) and heterojunction structures for uncooled terahertz receivers is reviewed. The present status of this field features a transition from quasi-optical designs based on dot-matrix, whisker-contacted SBDs to the designs with hybrid-integrated and monolithic constructions on the planar SBD base, which are positioned in a waveguide mount. The high-level performance of these planar devices is achieved by partially or completely removing or changing semiconductor substrates and/or using membrane constructions incorporated in the waveguide. |
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