From arrays of THz antennas to large-area emitters

González Posadas, Vicente and Döhler, Gottfried H. and García Muñoz, Luis Enrique and Preu, Sascha and Malzer, Stefan and Bauerschmidt, Sebastian and Montero de Paz, Javier and Ugarte Muñoz, Eduardo and Rivera Lavado, Alejandro and Segovia Vargas, Daniel (2013). From arrays of THz antennas to large-area emitters. "IEEE Transactions on teraHertz Science and Technology", v. 3 (n. 5); pp. 532-544. ISSN 2156-342X. https://doi.org/10.1109/TTHZ.2013.2266541.

Description

Title: From arrays of THz antennas to large-area emitters
Author/s:
  • González Posadas, Vicente
  • Döhler, Gottfried H.
  • García Muñoz, Luis Enrique
  • Preu, Sascha
  • Malzer, Stefan
  • Bauerschmidt, Sebastian
  • Montero de Paz, Javier
  • Ugarte Muñoz, Eduardo
  • Rivera Lavado, Alejandro
  • Segovia Vargas, Daniel
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on teraHertz Science and Technology
Date: September 2013
ISSN: 2156-342X
Volume: 3
Subjects:
Freetext Keywords: High power terahertz, photomixers, planar antennas, terahertz (THz), THz arrays.
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Arrays of coherently driven photomixers with antenna (antenna emitter arrays, AEAs) have been evaluated as a possibility to overcome the power limitations of individual conventional photomixers with antenna (?antenna emitters?, AEs) for the generation of continuous-wave (CW) THz radiation. In this paper, ?large area emitters? (LAEs) are proposed as an alternative approach, and compared with AEAs. In this antenna-free new scheme of photomixing, the THz radiation originates directly from the acceleration of photo-induced charge carriers generated within a large semiconductor area. The quasi-continuous distribution of emitting elements corresponds to a high-density array and results in favorable radiation profiles without side lobes. Moreover, the achievable THz power is expected to outnumber even large AEAs. Last not least, the technological challenge of fabricating LAEs appears to be significantly less demanding.

More information

Item ID: 29182
DC Identifier: http://oa.upm.es/29182/
OAI Identifier: oai:oa.upm.es:29182
DOI: 10.1109/TTHZ.2013.2266541
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6549206&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A6584905%29
Deposited by: Memoria Investigacion
Deposited on: 11 Jul 2014 18:19
Last Modified: 22 Sep 2014 11:44
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