Abstract-Optical isotropy at terahertz frequencies using anisotropic metamaterials

In-Sung Lee1, Ik-Bu Sohn2, Chul Kang2, Chul-Sik Kee2, Jin-Kyu Yang3,a) and Joong Wook Lee1,b)
http://scitation.aip.org/content/aip/journal/apl/109/3/10.1063/1.4959032
1 Department of Physics and Optoelectronics Convergence Research Center, Chonnam National University, Gwangju 500-757, South Korea
2 Advanced Photonics Research Institute, GIST, Gwangju 500-712, South Korea
3 Department of Optical Engineering, Kongju National University, Cheonan 330-717, South Korea
a) jinkyuyang@kongju.ac.kr
b) leejujc@chonnam.ac.kr
Appl. Phys. Lett. 109, 031103 (2016); http://dx.doi.org/10.1063/1.4959032

We demonstrate optically isotropic filters in the terahertz (THz) frequency range using structurally anisotropic metamaterials. The proposed metamaterials with two-dimensional arrangements ofanisotropic H-shaped apertures show polarization-independent transmission due to the combined effects of the dipole resonances of resonators and antennas. Our results may offer the potential for the design and realization of versatile THz devices and systems.