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Proceedings Paper

Determination of magneto-optical characteristics of hexaferrites from 200 GHz to 1THz using time domain spectroscopy
Author(s): Ranxi Zhang; Bin Yang; Yan Zhang; Robert S. Donnan
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Paper Abstract

Gyrotropic, magnetically-hard hexaferrite materials, are very promising candidates to operate as quasi-optical nonreciprocal devices at high frequencies (> 90GHz), with the consequent advantage of obviating the need for requiring extra biasing magnets and avoiding low temperature demagnetization. In this paper, a THz TDS system is used to make measurements on a thin (2.02 mm thickness) hexaferrite plate for both parallel and perpendicular polarisation of the pump beam. From these data, the intrinsic circular-polarisation transmittances of both senses of polarisation are computed and these are analysed to determine the magneto-optical constants of the hexaferrite plate over the range of 200 GHz to 1THz.

Paper Details

Date Published: 20 November 2009
PDF: 7 pages
Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 751107 (20 November 2009); doi: 10.1117/12.839690
Show Author Affiliations
Ranxi Zhang, Capital Normal Univ. (China)
Bin Yang, Queen Mary Univ. of London (United Kingdom)
Yan Zhang, Capital Normal Univ. (China)
Robert S. Donnan, Queen Mary Univ. of London (United Kingdom)


Published in SPIE Proceedings Vol. 7511:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Shenghua Ye; Guangjun Zhang; Jun Ni, Editor(s)

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