Fernandez Olvera, Anuar de Jesus ; Roggenbuck, Axel ; Dutzi, Katja ; Vieweg, Nico ; Lu, Hong ; Gossard, Arthur C. ; Preu, Sascha (2020)
International System of Units (SI) Traceable Noise-Equivalent Power and Responsivity Characterization of Continuous Wave ErAs:InGaAs Photoconductive Terahertz Detectors.
In: Photonics, 2019, 6 (1)
doi: 10.25534/tuprints-00011362
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
A theoretical model for the responsivity and noise-equivalent power (NEP) of photoconductive antennas (PCAs) as coherent, homodyne THz detectors is presented. The model is validated by comparison to experimental values obtained for two ErAs:InGaAs PCAs. The responsivity and NEP were obtained from the measured rectified current, the current noise floor in the PCAs, and the incoming THz power for the same conditions. Since the THz power measurements are performed with a pyroelectric detector calibrated by the National Metrology Institute of Germany (PTB), the experimentally obtained values are directly traceable to the International System of Units (SI) for the described conditions. The agreement between the presented model and the experimental results is excellent using only one fitting parameter. A very low NEP of 1.8 fW/Hz at 188.8 GHz is obtained at room temperature.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Fernandez Olvera, Anuar de Jesus ; Roggenbuck, Axel ; Dutzi, Katja ; Vieweg, Nico ; Lu, Hong ; Gossard, Arthur C. ; Preu, Sascha |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | International System of Units (SI) Traceable Noise-Equivalent Power and Responsivity Characterization of Continuous Wave ErAs:InGaAs Photoconductive Terahertz Detectors |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2020 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2019 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Photonics |
| Jahrgang/Volume einer Zeitschrift: | 6 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.25534/tuprints-00011362 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/11362 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung |
| Kurzbeschreibung (Abstract): | A theoretical model for the responsivity and noise-equivalent power (NEP) of photoconductive antennas (PCAs) as coherent, homodyne THz detectors is presented. The model is validated by comparison to experimental values obtained for two ErAs:InGaAs PCAs. The responsivity and NEP were obtained from the measured rectified current, the current noise floor in the PCAs, and the incoming THz power for the same conditions. Since the THz power measurements are performed with a pyroelectric detector calibrated by the National Metrology Institute of Germany (PTB), the experimentally obtained values are directly traceable to the International System of Units (SI) for the described conditions. The agreement between the presented model and the experimental results is excellent using only one fitting parameter. A very low NEP of 1.8 fW/Hz at 188.8 GHz is obtained at room temperature. |
| Freie Schlagworte: | Coherent THz detectors; photoconductive antennas; responsivity; NEP; homodyne detection |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-113623 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) > THz Bauelemente und THz Systeme |
| Hinterlegungsdatum: | 26 Jan 2020 20:58 |
| Letzte Änderung: | 09 Aug 2024 08:43 |
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| Suche nach Titel in: | TUfind oder in Google |
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- International System of Units (SI) Traceable Noise-Equivalent Power and Responsivity Characterization of Continuous Wave ErAs:InGaAs Photoconductive Terahertz Detectors. (deposited 26 Jan 2020 20:58) [Gegenwärtig angezeigt]
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