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Polarisation-Sensitive THz Detectors

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

We have developed a detector of coherent terahertz (THz) radiation that can recover the full polarisation state of a THz transient. The device is three-contact photoconductive receiver, which is capable of recording two time-varying electric field components of a THz pulse simultaneously. Our receiver was fabricated on Fe+ implanted InP and showed a cross-polarised extinction ratio greater than 100:1. The detector will be useful for spectroscopy of birefringent and optically active materials.

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M. B. Johnston, E. Castro-Camus, J. Lloyd-Hughes, M. D. Fraser, H. H. Tan, C. Jagadish. 2006-02-09. Polarisation-Sensitive THz Detectors. https://arxiv.org/abs/cond-mat/0602230

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