Abstract
Dielectric metamaterials (DMM) can offer polarization-independent isotropic properties and reduction of absorption due to Ohmic losses present in spit-ring-based metamaterials. For these reasons, DMMs have attracted much attention recently [1,2]. A sub-wavelength size dielectric resonator made of a high-permittivity dielectric material, such as TiO2 (ε≈100 at 1 THz), is a key element for DMMs. Effective negative magnetic response (μ<0) in principle can be realized in a TiO2 micro-sphere due to the first Mie resonance [2,3]. TiO2 spheres can be synthesized in a variety of sizes, crystallinity and porosity. However characterization of these building blocks for DMMs at THz frequencies remains a serious challenge and their intrinsic resonant properties are not well-known.
© 2015 IEEE
PDF ArticleMore Like This
Irina Khromova, Petr Kužel, Igal Brener, John L. Reno, U-Chan Chung, Catherine Elissalde, Mario Maglione, Patrick Mounaix, and Oleg Mitrofanov
STh4I.2 CLEO: Science and Innovations (CLEO:S&I) 2016
Oleg Mitrofanov, Irina Khromova, Filip Dominec, Petr Kužel, John L. Reno, Igal Brener, U-Chan Chung, Cathy Elissalde, Mario Maglione, and Patrick Mounaix
SeM4D.5 Optical Sensors (Sensors) 2015
Jun-Jun Xiao, Qiang Zhang, Xiaoming Zhang, and Fei Fei Qin
OW2B.5 Optoelectronic Devices and Integration (OEDI) 2015