Title :
Temperature tunable behavior of planar terahertz metamaterials fabricated on bulk strontium titanate substrates
Author :
Singh, Ranjan ; Taylor, Antoinette J. ; Chen, Hou-Tong
Author_Institution :
MPA-CLNT, Los Alamos Nat. Lab., Los Alamos, NM, USA
Abstract :
We demonstrate thermal tuning of the inductive capacitive (LC) resonance in terahertz metamaterials made up of gold split-ring resonator (SRR) arrays on ferroelectric bulk Strontium Titanate (STO) substrates. Heating the metamaterial from temperature of 150 K to 425 K causes as high as 69% blue shift in metamaterial resonance frequency due to the change in refractive index of the substrate.
Keywords :
gold; metamaterials; optical resonators; optical tuning; refractive index; strontium compounds; Au; STO substrates; SrTiO3; blue shift; bulk strontium titanate substrates; ferroelectric bulk strontium titanate; gold split-ring resonator arrays; inductive capacitive resonance; metamaterial resonance frequency; planar terahertz metamaterials; refractive index; temperature 150 K to 425 K; temperature tunable behavior; thermal tuning; Frequency measurement; Metamaterials; Optical resonators; Resonant frequency; Substrates; Temperature measurement; Tuning;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
