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Compact tunable sub-terahertz oscillators based on Josephson junctions

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.

Document Type:Article
Title:Compact tunable sub-terahertz oscillators based on Josephson junctions
AuthorsInstitution or Email of Authors
Song, FengbinNankai University, Tjanjin, China und FZ Jülich
Müller, FranzPTB, Braunschweig
Scheller, ThomasPTB, Braunschweig
Semenov, Alexejalexei.semenov@dlr.de
He, MingNankai University, Tjanjin, China
Fang, LanNankai University, Tjanjin, China
Hübers, Heinz-Wilhelmheinz-wilhelm.huebers@dlr.de
Kluschin, AlexanderFZ Jülich
Date:April 2011
Journal or Publication Title:Applied Physics Letters
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:142506-1-142506-3
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)
Location: Berlin-Adlershof
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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