Polarisation-sensitive terahertz detection by multicontact photoconductive receivers

Details Polarisation-sensitive terahertz detection by multicontact photoconductive receivers Polarisation-sensitive terahertz detection by multicontact photoconductive receivers

2005-10-04

arxiv.org/abs/cond-mat/0510076v1

Appl. Phys. Lett. 86, 254102 (2005)

Physics

Condensed Matter

Other Condensed Matter

3 pages, 3 figures

Scientific paper

10.1063/1.1951051

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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