Electro-optic switching in phase-discontinuity complementary metasurface twisted nematic cell

• DOI: 10.1364/oe.22.020816
• Publication Date: 2014-08-20T16:36:28Z
• Authors: Y. U. Lee; J. Kim; J. H. Woo; L. H. Bang; E. Y. Choi; E. S. Kim; J. W. Wu
• Keywords: 02 engineering and technology; 0210 nano-technology

Electro-optic switching of refraction is experimentally demonstrated in a phase-discontinuity complementary metasurface twisted nematic cell. The phase-discontinuity complementary metasurface is fabricated by focused-ion-beam milling, and a twisted nematic cell is constructed with complementary V-shape slot antenna metasurface. By application of an external voltage, switching is achieved between ordinary refraction and extraordinary refraction satisfying the generalized Snell's law. It has a strong implication for applications in spatial light modulation and wavelength division multiplexer/demultiplexer in a near-IR spectral range.