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Multiple double-metal bias-free terahertz emitters

Multiple double-metal bias-free terahertz emitters
Multiple double-metal bias-free terahertz emitters
We demonstrate multiplexed terahertz emitters that exhibits 2THz bandwidth that do not require an external bias. The emitters operate under uniform illumination eliminating the need for a micro-lens array and are fabricated with periodic Au and Pb structures on GaAs. Terahertz emission originates from the lateral photo-Dember effect and from the different Schottky barrier heights of the chosen metal pair. We characterize the emitters and determine that most terahertz emission at 300K is due to band-bending due to the Schottky barrier of the metal.
0003-6951
McBryde, D.
f7bf01f5-a1b3-4873-9067-2d118d8dc714
Gow, P.
193394b1-fe2d-41de-a9aa-6de7e5925b18
Berry, S.A.
0f768f48-36c4-4599-8917-7aae657378a7
Barnes, M.E.
02cc9817-23c5-4ddb-855b-1ca14818e67d
Aghajani, A.
4602c567-ed8e-4538-9d34-efde7db06dbb
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
McBryde, D.
f7bf01f5-a1b3-4873-9067-2d118d8dc714
Gow, P.
193394b1-fe2d-41de-a9aa-6de7e5925b18
Berry, S.A.
0f768f48-36c4-4599-8917-7aae657378a7
Barnes, M.E.
02cc9817-23c5-4ddb-855b-1ca14818e67d
Aghajani, A.
4602c567-ed8e-4538-9d34-efde7db06dbb
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d

McBryde, D., Gow, P., Berry, S.A., Barnes, M.E., Aghajani, A. and Apostolopoulos, V. (2014) Multiple double-metal bias-free terahertz emitters. Applied Physics Letters, 104 (20). (doi:10.1063/1.4878739).

Record type: Article

Abstract

We demonstrate multiplexed terahertz emitters that exhibits 2THz bandwidth that do not require an external bias. The emitters operate under uniform illumination eliminating the need for a micro-lens array and are fabricated with periodic Au and Pb structures on GaAs. Terahertz emission originates from the lateral photo-Dember effect and from the different Schottky barrier heights of the chosen metal pair. We characterize the emitters and determine that most terahertz emission at 300K is due to band-bending due to the Schottky barrier of the metal.

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More information

Accepted/In Press date: 1 April 2014
e-pub ahead of print date: 20 May 2014
Published date: 2014
Related URLs:
Organisations: Optoelectronics Research Centre, Quantum, Light & Matter Group
Learn more about Optoelectronics Research Centre research Learn more about Physics & Astronomy research

Identifiers

Local EPrints ID: 365885
URI: https://eprints.soton.ac.uk/id/eprint/365885
DOI: doi:10.1063/1.4878739
ISSN: 0003-6951
PURE UUID: 99afcb58-0587-4741-b454-bb35189f7122
ORCID for P. 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

Catalogue record

Date deposited: 20 Jun 2014 12:46
Last modified: 20 Jul 2019 00:52

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Contributors

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

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