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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 5 — Mar. 1, 2014
  • pp: 1121–1124

Modifying the polarization state of terahertz radiation using anisotropic twin-domains in LaAlO3

J. Lloyd-Hughes, S. P. P. Jones, E. Castro-Camus, K. I. Doig, and J. L. MacManus-Driscoll  »View Author Affiliations

Optics Letters, Vol. 39, Issue 5, pp. 1121-1124 (2014)

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Polarization-resolved terahertz (THz) time-domain spectroscopy was utilized to examine the complex refractive index of lanthanum aluminate (LaAlO3), a rhombohedrally distorted perovskite that exhibits crystallographic twin domains. The uniaxial anisotropy of the refractive index was quantified. The ellipticity of THz radiation pulses after transmission through single domains indicated that LaAlO3 can be used as a quarter- or half-wave plate. The effective anisotropy of [001]-oriented LaAlO3 was found to be reduced when the material exhibited multiple, narrow twin domains.

© 2014 Optical Society of America

OCIS Codes
(260.1440) Physical optics : Birefringence
(260.2130) Physical optics : Ellipsometry and polarimetry
(320.7150) Ultrafast optics : Ultrafast spectroscopy
(260.2710) Physical optics : Inhomogeneous optical media

ToC Category:
Physical Optics

Original Manuscript: December 27, 2013
Manuscript Accepted: January 10, 2014
Published: February 18, 2014

J. Lloyd-Hughes, S. P. P. Jones, E. Castro-Camus, K. I. Doig, and J. L. MacManus-Driscoll, "Modifying the polarization state of terahertz radiation using anisotropic twin-domains in LaAlO3," Opt. Lett. 39, 1121-1124 (2014)

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