Details

Autor(en) / Beteiligte

• Weis, P
• Paul, O
• Imhof, C
• Beigang, R
• Rahm, M

Titel

Strongly birefringent metamaterials as negative index terahertz wave plates

Ist Teil von

• Applied physics letters, 2009-10, Vol.95 (17), p.171104-171104-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2009

Link zum Volltext

Quelle

AIP Journals Complete

Beschreibungen/Notizen

• 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.