Song, Fengbin and Müller, Franz and Scheller, Thomas and Semenov, Alexej and He, Ming and Fang, Lan and Hübers, Heinz-Wilhelm and Kluschin, Alexander (2011) Compact tunable sub-terahertz oscillators based on Josephson junctions. Applied Physics Letters, 98, 142506-1-142506-3. American Institute of Physics. DOI: 10.1063/1.3576910.
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Essential applications of terahertz technology are urgently in need of compact, tunable solid-state continuous wave radiation sources. However, no satisfactory solution is yet available for the frequency range of up to approximately 1.0 THz. Here, we present coherent radiation from large series arrays of Josephson junctions between 0.1 and 0.25 THz with off-chip radiation power of 7 microWatt. Niobium junctions oscillate at 4.2 K and the detection has been done at room temperature. The well-known obstacle to impedance matching is overcome by utilizing the excited resonances in the junction substrates serving as dielectric resonator antennae.
|Title:||Compact tunable sub-terahertz oscillators based on Josephson junctions|
|Journal or Publication Title:||Applied Physics Letters|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Publisher:||American Institute of Physics|
|Keywords:||Josephson junctions, Arrays, Subterahertz radiation|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Transport|
|HGF - Program Themes:||Traffic Management|
|DLR - Research area:||Transport|
|DLR - Program:||V VM - Verkehrsmanagement|
|DLR - Research theme (Project):||V - FAMOUS 2 (old)|
|Institutes and Institutions:||Institute of Planetary Research > Terahertz and Infrared Sensors|
|Deposited By:||Prof.Dr. Alexey Semenov|
|Deposited On:||29 Jun 2011 13:33|
|Last Modified:||07 Feb 2013 20:47|
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