Tunable meta-liquid-crystal based on mercury microdrople

• Main Authors: Chia, Elbert E. M., Zhu, Wei Ming, Zhang, Wu, Liu, Ai Qun, Song, Qing Hua
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/102522; http://hdl.handle.net/10220/38314; http://metaconferences.org/ocs/index.php/META14/index/pages/view/proceedings/#.VaMckl-qqko
• Institution: Nanyang Technological University

Here we report a tunable Meta-Liquid-Crystal based on liquid metal droplet, the optical properties of which is tuned by controlled electrowetting effects. The Meta-LiquidCrystal consists of 80 × 80 micro droplets, which are formed and self-assembled by lotus effect on silicon substrate with micro holes array. In experiment, it measures a 0.01-THz frequency shift of the dipole resonance spectrum induced by changing of the droplets shape via electrowetting effect. The Meta-Liquid-Crystal is flexible in tuning and easy in fabrication, which has potential application on tunable filters, controllable beam steering and flat lens.