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Proceedings Paper

Detecting the full polarization state of terahertz transients
Author(s): E. Castro-Camus; J. Lloyd-Hughes; M. D. Fraser; H. H. Tan; C. Jagadish; M. B. Johnston
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Paper Abstract

We have developed a detector which records the full polarization state of a terahertz (THz) pulse propagating in free space. The three-electrode photoconductive receiver simultaneously records the electric field of an electromagnetic pulse in two orthogonal directions as a function of time. A prototype device fabricated on Fe+ ion implanted InP exhibited a cross polarized extinction ratio better than 390:1. The design and optimization of this device are discussed along with its significance for the development of new forms of polarization sensitive time domain spectroscopy, including THz circular dichroism spectroscopy.

Paper Details

Date Published: 7 March 2006
PDF: 7 pages
Proc. SPIE 6120, Terahertz and Gigahertz Electronics and Photonics V, 61200Q (7 March 2006); doi: 10.1117/12.660717
Show Author Affiliations
E. Castro-Camus, Univ. of Oxford (United Kingdom)
J. Lloyd-Hughes, Univ. of Oxford (United Kingdom)
M. D. Fraser, Australian National Univ. (Australia)
H. H. Tan, Australian National Univ. (Australia)
C. Jagadish, Australian National Univ. (Australia)
M. B. Johnston, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 6120:
Terahertz and Gigahertz Electronics and Photonics V
R. Jennifer Hwu; Kurt J. Linden, Editor(s)

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