Thz polarizer using tunable metamaterials

• Main Authors: Lo, Guo-Qing., Kwong, Dim Lee., Zhang, W., Zhu, W. M., Tsai, J. M., Li, E. P., Liu, A. Q.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Microelectromechanical systems
• Online Access: https://hdl.handle.net/10356/84774; http://hdl.handle.net/10220/17197
• Institution: Nanyang Technological University

The polarization of electromagnetic (EM) wave plays an essential role in the application of optoelectronics, life science microscopy and photographic display[1]. The conversion of EM wave in one polarized direction to its orthogonal direction is usually quite weak in natural materials. This paper presents a tunable metamaterial which rotates the polarized direction up to 20° in THz regime. The metamaterial can be transformed to its non-superimposable mirror image and tunes the polarization angle, which can be applied as tunable wave plate and optical switch in THz regime.