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Characterisation of THz emission from double-metal-patterned gallium-arsenide multiple emitters

Characterisation of THz emission from double-metal-patterned gallium-arsenide multiple emitters
Characterisation of THz emission from double-metal-patterned gallium-arsenide multiple emitters
Multiplexed gallium–arsenide (GaAs)-based terahertz (THz) emitters fabricated with periodic double-metal structures are demonstrated and the effect of different metals on the THz output is investigated. THz emission originates from the lateral photo-Dember effect and from the different Schottky barrier heights of the chosen metal pair. The metal combinations used were Au–Al, Au–Pb and Cu–Cr. The emitters were characterised according to temperature and the highest peak-to-peak THz emission was achieved with the Cu–Cr metal pairing at 150 K.
0013-5194
1966-1967
Gow, P.C.
193394b1-fe2d-41de-a9aa-6de7e5925b18
McBryde, D.
f7bf01f5-a1b3-4873-9067-2d118d8dc714
Berry, S.A.
0f768f48-36c4-4599-8917-7aae657378a7
Barnes, M. E.
0026b438-44fe-40af-9284-552e04675efa
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Gow, P.C.
193394b1-fe2d-41de-a9aa-6de7e5925b18
McBryde, D.
f7bf01f5-a1b3-4873-9067-2d118d8dc714
Berry, S.A.
0f768f48-36c4-4599-8917-7aae657378a7
Barnes, M. E.
0026b438-44fe-40af-9284-552e04675efa
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d

Gow, P.C., McBryde, D., Berry, S.A., Barnes, M. E. and Apostolopoulos, V. (2014) Characterisation of THz emission from double-metal-patterned gallium-arsenide multiple emitters. Electronics Letters, 50 (25), 1966-1967. (doi:10.1049/el.2014.2751).

Record type: Article

Abstract

Multiplexed gallium–arsenide (GaAs)-based terahertz (THz) emitters fabricated with periodic double-metal structures are demonstrated and the effect of different metals on the THz output is investigated. THz emission originates from the lateral photo-Dember effect and from the different Schottky barrier heights of the chosen metal pair. The metal combinations used were Au–Al, Au–Pb and Cu–Cr. The emitters were characterised according to temperature and the highest peak-to-peak THz emission was achieved with the Cu–Cr metal pairing at 150 K.

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Published date: 4 December 2014
Organisations: Optoelectronics Research Centre, Physics & Astronomy, Quantum, Light & Matter Group
Learn more about Physics & Astronomy research Learn more about Optoelectronics Research Centre research

Identifiers

Local EPrints ID: 406342
URI: http://eprints.soton.ac.uk/id/eprint/406342
DOI: doi:10.1049/el.2014.2751
ISSN: 0013-5194
PURE UUID: be765685-134b-4566-8e16-3c10822c44cc
ORCID for P.C. Gow: ORCID iD orcid.org/0000-0002-3247-9082
ORCID for S.A. Berry: ORCID iD orcid.org/0000-0002-9538-8655
ORCID for V. Apostolopoulos: ORCID iD orcid.org/0000-0003-3733-2191

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Date deposited: 10 Mar 2017 10:45
Last modified: 16 Mar 2024 04:10

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Contributors

Author: P.C. Gow ORCID iD
Author: D. McBryde
Author: S.A. Berry ORCID iD
Author: M. E. Barnes
Author: V. Apostolopoulos ORCID iD

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