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Extraction of the anisotropic dielectric properties of materials from polarization-resolved terahertz time-domain spectra

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E Castro-Camus1 and M B Johnston2

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The anisotropic complex dielectric properties of materials in the terahertz band is a topic that has attracted considerable attention recently in the fields of physics, chemistry and biochemistry. The mathematical formalism for analysing polarization-resolved terahertz time-domain data is presented, and particular cases including birefringence, optical activity and circular dichroism are discussed.


PACS

78.70.Gq Microwave and radio-frequency interactions

77.22.-d Dielectric properties of solids and liquids

78.20.Ek Optical activity

78.20.Fm Birefringence

Subjects

Condensed matter: electrical, magnetic and optical

Dates

Issue 10 (October 2009)

Received 3 June 2009, accepted for publication 16 July 2009

Published 14 August 2009



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