Regensburger, Stefan ; Mittendorff, Martin ; Winnerl, Stephan ; Lu, Hong ; Gossard, Arthur C. ; Preu, Sascha (2015)
Broadband THz detection from 0.1 to 22 THz with large area field-effect transistors.
In: Optics Express, 23 (16)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on ultrafast detection of radiation between 100 GHz and 22 THz by field-effect transistors in a large area configuration. With the exception of the Reststrahlenband of GaAs, the spectral coverage of the GaAs-based detectors is more than two orders of magnitude, covering the entire THz range (100 GHz - 10 THz). The temporal resolution of the robust devices is yet limited by the 30 GHz oscilloscope used for read out. The responsivity roll-off towards higher frequencies is weaker than expected from an RC-roll-off model. Terahertz pulses with peak powers of up to 65kW have been recorded without damaging the devices.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Regensburger, Stefan ; Mittendorff, Martin ; Winnerl, Stephan ; Lu, Hong ; Gossard, Arthur C. ; Preu, Sascha |
| Art des Eintrags: | Bibliographie |
| Titel: | Broadband THz detection from 0.1 to 22 THz with large area field-effect transistors |
| Sprache: | Englisch |
| Publikationsjahr: | August 2015 |
| Verlag: | OSA |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Optics Express |
| Jahrgang/Volume einer Zeitschrift: | 23 |
| (Heft-)Nummer: | 16 |
| URL / URN: | http://dx.doi.org/10.1364/OE.23.020732 |
| Kurzbeschreibung (Abstract): | We report on ultrafast detection of radiation between 100 GHz and 22 THz by field-effect transistors in a large area configuration. With the exception of the Reststrahlenband of GaAs, the spectral coverage of the GaAs-based detectors is more than two orders of magnitude, covering the entire THz range (100 GHz - 10 THz). The temporal resolution of the robust devices is yet limited by the 30 GHz oscilloscope used for read out. The responsivity roll-off towards higher frequencies is weaker than expected from an RC-roll-off model. Terahertz pulses with peak powers of up to 65kW have been recorded without damaging the devices. |
| Freie Schlagworte: | Free-electron lasers (FELs); Detectors; Optoelectronics; Ultrafast devices; Far infrared or terahertz; Laser beam characterization; FET; THz; |
| 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 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) > Terahertz Systems |
| Hinterlegungsdatum: | 04 Aug 2015 08:25 |
| Letzte Änderung: | 10 Dez 2021 07:13 |
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