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Polarisation-sensitive terahertz detection by multicontact photoconductive receivers

E. Castro-Camus·J. Lloyd-Hughes·M. B. Johnston·M. D. Fraser·H. H. Tan·C. Jagadish
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Abstract

We have developed a terahertz radiation detector that measures both the amplitude and polarization of the electric field as a function of time. The device is a three-contact photoconductive receiver designed so that two orthogonal electric-field components of an arbitrary polarized electromagnetic wave may be detected simultaneously. The detector was fabricated on Fe+ ion-implanted InP. Polarization-sensitive detection is demonstrated with an extinction ratio better than 100:1. This type of device will have immediate application in studies of birefringent and optically active materials in the far-infrared region of the spectrum.

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E. Castro-Camus, J. Lloyd-Hughes, M. B. Johnston, M. D. Fraser, H. H. Tan, C. Jagadish. 2005-10-04. Polarisation-sensitive terahertz detection by multicontact photoconductive receivers. https://doi.org/10.1063/1.1951051

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