Bi-state switch based on two-dimensional guided-mode resonance

In this paper, a bi-state (on/off) switch is proposed utilizing a two-dimensional, all-dielectric periodic guided-mode resonance (GMR) structure. Employing a conceptual MEMS mechanism, switching is performed by modifying the Fourier series coefficients of the refractive index distribution. This switch operates in the visible region. In the 'on' state, the switch exhibits a narrow linewidth reflection resonance at lambda = 541 nm; this resonance disappears in the 'off' state. In fact, in the 'off' state, the condition for supporting a GMR is lost. This element exhibits a reversible switching action and can be a potential candidate for narrowband optical switches, light modulators, and laser systems.

Automated summary

A bi-state switch utilizing a two-dimensional, all-dielectric periodic guided-mode resonance structure is proposed in this paper, operating in the visible region with a narrow linewidth reflection resonance. The switch exhibits reversible switching action and shows potential for narrowband optical switches, light modulators, and laser systems.