YBa_2Cu_3O_(7−/delta) quasioptical detectors for fast time-domain analysis of terahertz synchrotron radiation
Probst, Petra and Scheuring, Alexander and Hofherr, Mattias and Rall, Dagmar and Wünsch, Stefan and Siegel, Michael and Semenov, Alexei and Pohl, Andreas and Hübers, Heinz-Wilhelm and Judin, Vitaly and Müller, Anke-Süsanne and Hoel, Arne and Müller, Ralph and Ulm, Gerhardt (2011) YBa_2Cu_3O_(7−/delta) quasioptical detectors for fast time-domain analysis of terahertz synchrotron radiation. Applied Physics Letters, 98, . American Institute of Physics. DOI: 10.1063/1.3546173.
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Thin YBCO film detectors embedded into a log-spiral planar antenna were implemented for the detection and analysis of ultrashort terahertz pulses emitted by electron bunches in a synchrotron storage ring. In the direct detection mode terahertz radiation pulses from single electron bunches were resolved. A response time of 45 ps was determined as the full width at half maximum of the voltage transient at the output of the detection system. The sensitivity of the YBCO detector to pulsed terahertz radiation was 70 mV/pJ along with a sensitivity of 30 V/W for continuous radiation at 0.8 THz and a very broad dynamic range of over 30 dB. We found experimental evidences of a nonbolometric nature of the detection mechanism.
|Title:||YBa_2Cu_3O_(7−/delta) quasioptical detectors for fast time-domain analysis of terahertz synchrotron radiation|
|Journal or Publication Title:||Applied Physics Letters|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Publisher:||American Institute of Physics|
|Keywords:||YBCO thin films, Terahertz detectors, Synchrotron radiation|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Transport|
|HGF - Program Themes:||V VM - Verkehrsmanagement|
|DLR - Research area:||Transport|
|DLR - Program:||V VM - Verkehrsmanagement|
|DLR - Research theme (Project):||V - Verkehrs- und Mobilitätsmanagement|
|Institutes and Institutions:||Institute of Planetary Research > Terahertz and Infrared Sensors|
|Deposited By:||Prof.Dr. Alexey Semenov|
|Deposited On:||29 Jun 2011 13:36|
|Last Modified:||04 Apr 2013 16:29|
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