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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 12 — Apr. 20, 2006
  • pp: 2766–2772

Terahertz birefringence and attenuation properties of wood and paper

Matthew Reid and R. Fedosejevs  »View Author Affiliations

Applied Optics, Vol. 45, Issue 12, pp. 2766-2772 (2006)

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The far-infrared properties of spruce wood are examined with a terahertz time-domain spectrometer. The solid wood is shown to exhibit both birefringence and diattenuation. The birefringence properties are sufficient for construction of a quarter-wave plate operating at 0.36   THz , and a half-wave plate operating at 0.71   THz . The origin of the birefringence is attributed to preferential fiber orientation within the wood. Similar birefringence is observed in lens paper in which the fibers are preferentially oriented in one direction.

© 2006 Optical Society of America

OCIS Codes
(160.4760) Materials : Optical properties
(160.4890) Materials : Organic materials
(230.5440) Optical devices : Polarization-selective devices

Original Manuscript: May 24, 2005
Manuscript Accepted: September 16, 2005

Matthew Reid and R. Fedosejevs, "Terahertz birefringence and attenuation properties of wood and paper," Appl. Opt. 45, 2766-2772 (2006)

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