Journal article
(Original article)


From arrays of THz antennas to large-area emitters


Publication Details
Author(s): Malzer S, Döhler G, Garcia-Munoz E, Preu S, Bauerschmidt S, Montero-De-Paz J, Ugarte-Munoz E, Rivera-Lavado A, Segovia-Vargas D, Gonzalez-Posadas V
Publisher: Institute of Electrical and Electronics Engineers
Publication year: 2013
Volume: 3
Journal issue: 5
Pages range: 532-544
ISSN: 2156-342X

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. © 2011-2012 IEEE.



How to cite
APA: Malzer, S., Döhler, G., Garcia-Munoz, E., Preu, S., Bauerschmidt, S., Montero-De-Paz, J.,... Gonzalez-Posadas, V. (2013). From arrays of THz antennas to large-area emitters. IEEE Transactions on Terahertz Science and Technology, 3(5), 532-544. https://dx.doi.org/10.1109/TTHZ.2013.2266541

MLA: Malzer, Stefan, et al. "From arrays of THz antennas to large-area emitters." IEEE Transactions on Terahertz Science and Technology 3.5 (2013): 532-544.

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