Terahertz Time-Domain Spectroscopy of Dielectric Response in LiNbO3

Author: KOJIMA S.  

Publisher: Taylor & Francis Ltd

ISSN: 0015-0193

Source: Ferroelectrics, Vol.303, Iss.1, 2004-01, pp. : 221-225

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Abstract

Terahertz (THz) dielectric responce of lithium niobate crystals has been studied by THz Time-Domain Spectroscopy. The complex dielectric constants εz(ω) and εy(ω) have been determined from 0.1 THz to 2.0 THz without the Kramers-Kronig Analysis. The dispersion relations of A1(z) and E(y) symmetry phonon-polaritons have been determined accurately down to 0.1 THz.