Detecting the full polarization state of terahertz transients

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

doi:10.1117/12.660717

7 March 2006 Detecting the full polarization state of terahertz transients

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

Proceedings Volume 6120, Terahertz and Gigahertz Electronics and Photonics V; 61200Q (2006) https://doi.org/10.1117/12.660717
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

E. Castro-Camus, J. Lloyd-Hughes, M. D. Fraser, H. H. Tan, C. Jagadish, and M. B. Johnston "Detecting the full polarization state of terahertz transients", Proc. SPIE 6120, Terahertz and Gigahertz Electronics and Photonics V, 61200Q (7 March 2006); https://doi.org/10.1117/12.660717

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