Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry

We present a fiber coupled transceiver head for terahertz (THz) time-domain reflection measurements. The monolithically integrated transceiver chip is based on iron (Fe) doped In(0.53)Ga(0.47)As (InGaAs:Fe) grown by molecular beam epitaxy. Due to its ultrashort electron lifetime and high mobility, I...

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Autores principales: Kohlhaas, Robert B., Liebermeister, Lars, Breuer, Steffen, Amberg, Marcel, de Felipe, David, Nellen, Simon, Schell, Martin, Globisch, Björn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7273226/
https://www.ncbi.nlm.nih.gov/pubmed/32375349
http://dx.doi.org/10.3390/s20092616
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author Kohlhaas, Robert B.
Liebermeister, Lars
Breuer, Steffen
Amberg, Marcel
de Felipe, David
Nellen, Simon
Schell, Martin
Globisch, Björn
author_facet Kohlhaas, Robert B.
Liebermeister, Lars
Breuer, Steffen
Amberg, Marcel
de Felipe, David
Nellen, Simon
Schell, Martin
Globisch, Björn
author_sort Kohlhaas, Robert B.
collection PubMed
description We present a fiber coupled transceiver head for terahertz (THz) time-domain reflection measurements. The monolithically integrated transceiver chip is based on iron (Fe) doped In(0.53)Ga(0.47)As (InGaAs:Fe) grown by molecular beam epitaxy. Due to its ultrashort electron lifetime and high mobility, InGaAs:Fe is very well suited as both THz emitter and receiver. A record THz bandwidth of 6.5 THz and a peak dynamic range of up to 75 dB are achieved. In addition, we present THz imaging in reflection geometry with a spatial resolution as good as 130 µm. Hence, this THz transceiver is a promising device for industrial THz sensing applications.
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spelling pubmed-72732262020-06-19 Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry Kohlhaas, Robert B. Liebermeister, Lars Breuer, Steffen Amberg, Marcel de Felipe, David Nellen, Simon Schell, Martin Globisch, Björn Sensors (Basel) Article We present a fiber coupled transceiver head for terahertz (THz) time-domain reflection measurements. The monolithically integrated transceiver chip is based on iron (Fe) doped In(0.53)Ga(0.47)As (InGaAs:Fe) grown by molecular beam epitaxy. Due to its ultrashort electron lifetime and high mobility, InGaAs:Fe is very well suited as both THz emitter and receiver. A record THz bandwidth of 6.5 THz and a peak dynamic range of up to 75 dB are achieved. In addition, we present THz imaging in reflection geometry with a spatial resolution as good as 130 µm. Hence, this THz transceiver is a promising device for industrial THz sensing applications. MDPI 2020-05-04 /pmc/articles/PMC7273226/ /pubmed/32375349 http://dx.doi.org/10.3390/s20092616 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kohlhaas, Robert B.
Liebermeister, Lars
Breuer, Steffen
Amberg, Marcel
de Felipe, David
Nellen, Simon
Schell, Martin
Globisch, Björn
Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title_full Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title_fullStr Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title_full_unstemmed Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title_short Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
title_sort fiber coupled transceiver with 6.5 thz bandwidth for terahertz time-domain spectroscopy in reflection geometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7273226/
https://www.ncbi.nlm.nih.gov/pubmed/32375349
http://dx.doi.org/10.3390/s20092616
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