TITLE

Strongly birefringent metamaterials as negative index terahertz wave plates

AUTHOR(S)
Weis, P.; Paul, O.; Imhof, C.; Beigang, R.; Rahm, M.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/26/2009, Vol. 95 Issue 17, p171104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report an alternative approach for the design and fabrication of thin wave plates with high transmission in the terahertz regime. The wave plates are based on strongly birefringent cut-wire-pair metamaterials that exhibit refractive indices of opposite signs for orthogonal polarization components of an incident wave. As examples, we fabricated and investigated a quarter- and a half-wave plate with high intensity transmittance. The wave plates displayed a maximum figure of merit (FOM) of 23 at a frequency around 1.3 THz where the refractive index was n′=-1.7. This corresponds to one of the highest FOMs reported at terahertz frequencies.
ACCESSION #
44909865

 

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