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15 October 2012 Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band
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Compact, room temperature terahertz sources are much needed in the 1 to 3 THz band for developing multi-pixel heterodyne receivers for astrophysics and planetary science or for building short-range high spatial resolution THz imaging systems able to see through low water content and non metallic materials, smoke or dust for a variety of applications ranging from the inspection of art artifacts to the detection of masked or concealed objects. All solid-sate electronic sources based on a W-band synthesizer followed by a high-power W-band amplifier and a cascade of Schottky diode based THz frequency multipliers are now capable of producing more than 1 mW at 0.9THz, 50 μW at 2 THz and 18 μW at 2.6 THz without the need of any cryogenic system. These sources are frequency agile and have a relative bandwidth of 10 to 15%, limited by the high power W-band amplifiers. The paper will present the latest developments of this technology and its perspective in terms of frequency range, bandwidth and power.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alain Maestrini, Imran Mehdi, José V. Siles, Robert Lin, Choonsup Lee, Goutam Chattopadhyay, John Pearson, and Peter Siegel "Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band", Proc. SPIE 8496, Terahertz Emitters, Receivers, and Applications III, 84960F (15 October 2012);


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