Terahertz sources and systems : [proceedings of the NATO Advanced Research Workshop on Terahertz Sources and Systems, Chateau de Bonas, France, 22-27 June, 2000

Terahertz technology has moved on from being a useful but expensive circuit technique, applied largely in astronomy and space science, to become a subject in its own right, with important applications - terahertz imaging in particular. Indeed, the driving force in terahertz technology is currently imaging and spectroscopy. We now have the means to obtain images and chemical information in this frequency band. The images reproduced in this volume are striking and, not surprisingly, the clinical and analytical uses are the subject of intense activity. There is still, however, no complete range of active THz electronic components, but an encouraging conclusion of the book is that THz electronics will become necessary in communications systems in the foreseeable future. Terahertz technology has come of age, and the future lies open to new, exciting science and vital applications. Front Matter....Pages i-xiii Front Matter....Pages 1-1 Terahertz Dynamics in Quantum Structures: Towards a Fundamental Terahertz Oscillator....Pages 3-14 Semiconductor Terahertz Emitters....Pages 15-24 Front Matter....Pages 25-25 High Efficiency HBV Multipliers for Millimetre Wave Generation....Pages 27-52 High Performance Heterostructure Barrier Varactors....Pages 53-67 Active Two-Terminal Devices for Terahertz Power Generation by Multiplication....Pages 69-86 Front Matter....Pages 87-87 Far-infrared intersubband luminescence from quantum cascade sources....Pages 89-100 Superlattice QC lasers towards the far-infrared....Pages 101-114 Terahertz emission from semiconductor nanostructures....Pages 115-124 Front Matter....Pages 125-125 Perspectives of Continuous-Wave Optoelectronic THZ Imaging....Pages 127-143 Continuous-Wave Terahertz Generation Using Photomixers....Pages 145-165 Front Matter....Pages 167-167 Emerging Solid State Terahertz Electronics....Pages 169-185 Plasma Wave Electronics for Terahertz Applications....Pages 187-207 Prospects for The Application of Miniaturised Vacuum Technologies to Terahertz Sources....Pages 209-221 Front Matter....Pages 223-223 Two-Dimensional Terahertz Wave Imaging....Pages 225-239 THz Imaging Of Biological Samples....Pages 241-258 Front Matter....Pages 259-259 Towards Terahertz Communications Systems....Pages 261-267 Towards Terahertz Communications - Systems Requirements....Pages 269-283 Micromachining For Terahertz Circuits and Systems....Pages 285-297 Front Matter....Pages 299-299 Wideband Terahertz Sensing And Spectroscopy with Electronic Sources and Detectors....Pages 301-314 Time-Domain Terahertz Spectroscopy and Sensing....Pages 315-328 Front Matter....Pages 329-329 Terahertz Technology, Quo Vadis?....Pages 331-336 Back Matter....Pages 337-349 "Terahertz technology has moved on from being a useful but expensive circuit technique, applied largely in astronomy and space science, to become a subject in its own right, with important applications - terahertz imaging in particular. Indeed, the driving force in terahertz technology is currently imaging and spectroscopy. We now have the means to obtain images and chemical information in this frequency band. The images reproduced in this volume are striking and, not surprisingly, the clinical and analytical uses are the subject of intense activity. There is still, however, no complete range of active THz electronic components, but an encouraging conclusion of the book is that THz electronics will become necessary in communications systems in the foreseeable future."--BOOK JACKET The terahertz part of the electromagnetic spectrum marks a decade wide gap in semiconductor technology between transport-based electronics and quantum transition based photonics. Proceedings of the NATO Advanced Research Workshop, Chateau de Bonas, France, 22-27 June 2000