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Frequency Selective Optoelectronic Downconversion of a Terahertz Pulse Using ErAs:In(Al)GaAs Photoconductors

Fernandez Olvera, Anuar de Jesus ; Krause, Benedikt Leander ; Betancur-Perez, Andres ; Nandi, Uttam ; Dios, Cristina de ; Acedo, Pablo ; Preu, Sascha (2021)
Frequency Selective Optoelectronic Downconversion of a Terahertz Pulse Using ErAs:In(Al)GaAs Photoconductors.
In: IEEE Access, 2021, 9
doi: 10.26083/tuprints-00019460
Artikel, Zweitveröffentlichung, Verlagsversion

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Kurzbeschreibung (Abstract)

We introduce a new scheme for the detection of terahertz pulses based on the frequency selective optoelectronic downconversion of its individual modes with a continous-wave (CW) ErAs:InGaAs photoconductive antenna (PCA) driven by a comb-based CW photonic signal. The detection scheme can be used as metrology tool for the analysis of the fundamental resolution and stability limits of terahertz pulses and the mode-locked-lasers (MLLs) that drives them, as well as an ultra-high-resolution measurement technique for terahertz components or gas spectroscopy. We demonstrate both applications by measuring the linewidth of two frequency components of the particular terahertz pulse analyzed here (one at 75 GHz and one at 340 GHz) and by measuring a very narrowband filter between 70 and 80 GHz. The main advantage of this technique with respect to other terahertz pulse detection schemes is its capability of performing ultra-high-resolution measurements without the need of unpractically long scanning ranges or synchronization of two MLLs.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Fernandez Olvera, Anuar de Jesus ; Krause, Benedikt Leander ; Betancur-Perez, Andres ; Nandi, Uttam ; Dios, Cristina de ; Acedo, Pablo ; Preu, Sascha
Art des Eintrags: Zweitveröffentlichung
Titel: Frequency Selective Optoelectronic Downconversion of a Terahertz Pulse Using ErAs:In(Al)GaAs Photoconductors
Sprache: Englisch
Publikationsjahr: 2021
Publikationsdatum der Erstveröffentlichung: 2021
Verlag: IEEE
Titel der Zeitschrift, Zeitung oder Schriftenreihe: IEEE Access
Jahrgang/Volume einer Zeitschrift: 9
DOI: 10.26083/tuprints-00019460
URL / URN: https://tuprints.ulb.tu-darmstadt.de/19460
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Herkunft: Zweitveröffentlichung aus gefördertem Golden Open Access
Kurzbeschreibung (Abstract):

We introduce a new scheme for the detection of terahertz pulses based on the frequency selective optoelectronic downconversion of its individual modes with a continous-wave (CW) ErAs:InGaAs photoconductive antenna (PCA) driven by a comb-based CW photonic signal. The detection scheme can be used as metrology tool for the analysis of the fundamental resolution and stability limits of terahertz pulses and the mode-locked-lasers (MLLs) that drives them, as well as an ultra-high-resolution measurement technique for terahertz components or gas spectroscopy. We demonstrate both applications by measuring the linewidth of two frequency components of the particular terahertz pulse analyzed here (one at 75 GHz and one at 340 GHz) and by measuring a very narrowband filter between 70 and 80 GHz. The main advantage of this technique with respect to other terahertz pulse detection schemes is its capability of performing ultra-high-resolution measurements without the need of unpractically long scanning ranges or synchronization of two MLLs.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-194603
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Keywords: Optical pulses, Principal component analysis , Pulse measurements, Frequency measurement, Tools , Timing jitter, Optical receivers, CW photoconductive detectors, ErAs:In(Al)GaAs photoconductors, FreSOD, noise in mode-locked lasers, pulsed terahertz emitters, frequency metrology

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 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: 06 Sep 2021 12:56
Letzte Änderung: 06 Dez 2023 09:05
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