Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 103, Issue 3, Pages 689-692Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-011-6335-y
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Funding
- Ministry of Education of the Czech Republic [LC-512]
- Grant Agency of ASCR [A100100907]
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This work presents theoretical and experimental investigations of a tunable metamaterial which exhibits negative permeability in the THz frequency range. The tunability is obtained by temperature changes, and the sample consists of an array of high-permittivity SrTiO3 (STO) rods micromachined by a femtosecond laser. Structures exhibiting a negative permeability on multiple frequency bands are also investigated and a proper choice of the dimensions of the pattern allows us to achieve a substantial broadening of the frequency band with negative mu.
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