Reflection resonance switching in metamaterial twisted nematics cell | Zendy

Yeon Ui Lee | Zendy; Eun-Young Choi | Zendy; Jae Heun Woo | Zendy; E. S. Kim | Zendy; J. W. Wu | Zendy

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Reflection resonance switching in metamaterial twisted nematics cell

Author(s) -

Yeon Ui Lee,

Eun-Young Choi,

Jae Heun Woo,

E. S. Kim,

J. W. Wu

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.017492

Subject(s) - metamaterial , optics , resonator , reflection (computer programming) , polarization (electrochemistry) , materials science , resonance (particle physics) , split ring resonator , liquid crystal , reflection coefficient , aperture (computer memory) , optoelectronics , physics , atomic physics , chemistry , computer science , acoustics , programming language

Electric switching of reflection resonances at near-IR spectral range is experimentally demonstrated in a reflective metamaterial twisted nematic liquid crystal cell. Reflective metamaterial composed of nano-sized double-split ring resonator aperture is fabricated by a focused ion beam milling. Two-fold rotational symmetry of double-split ring resonators allows for two orthogonal polarization-dependent reflection resonances in the reflective metamaterial. With an external voltage of 10V across 12μm cell gap, a full switching is achieved between two reflection resonances. Dynamic measurements show the time constants of switch-on and switch-off are in the order of 100ms and 10ms, respectively.

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