| Popis: |
Subwavelength one-dimensional gratings (SOGs) enable high quality factor (Q) Fano resonance, which yield significant advantages for integrated photonics applications. They are realized as high refractive index membranes suspended in air, or placed on low refractive index insulators. It was not yet analyzed whether it is possible to obtain high-Q in structures where refractive index contrast between membrane and cladding is smaller than 1. With the aid of numerical simulations we demonstrate high-Q resonance occurring for refractive index contrast between membrane and cladding as small as 0.5, allowing the realization of monolithically integrated semiconductor devices. |
