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ISBN: 1000036433 3731501023 Year: 2013 Publisher: KIT Scientific Publishing
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Bolometric sensors show promising properties for the detection of THz radiation. To achieve an efficient coupling of the THz radiation into the detector, antenna structures with an ultra-high bandwidth have been developed in this work. By the use of the developed antennas the temporal resolution of ultra-short THz pulses on a picosecond time-scale has been enabled. Moreover, specific transient properties of THz signals, which have been measured for the first time, are demonstrated.
Ultrabreitbandantennen --- THz-Detektoren --- Bolometer --- Quasioptik --- Supraleitung
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ISBN: 1000139779 3731511452 Year: 2022 Publisher: Karlsruhe KIT Scientific Publishing
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In the THz frequency range, superconducting detectors coupled to planar antennas are well suited for the use in the field of accelerator beam diagnostics. This work studies the coupling efficiency and spectral sensitivity of different antenna designs. Based on the conclusions, two different detector systems for spectroscopic measurements are developed and verified with measurements at accelerator-based light sources.
Electrical engineering --- Supraleitung --- THz-Detektoren --- Terahertzstrahlung --- Planarantennen --- Synchrotronstrahlung --- superconductivity --- terahertz detector --- terahertz radiation --- planar antennas --- synchrotron radiation
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