Portal de Periódicos da CAPES

Omnidirectional resonance in a metal–dielectric–metal geometry

2004; American Institute of Physics; Volume: 84; Issue: 22 Linguagem: Inglês

10.1063/1.1758306

1520-8842

Hocheol Shin, Mehmet Fatih Yanik, Shanhui Fan, Rashid Zia, Mark L. Brongersma,

Photonic Crystals and Applications

We show that a planar metallic microcavity structure can exhibit an omnidirectional resonance, i.e., a resonance for which the resonance wavelength is independent of the incidence angle of light. The structure consists of a metal–dielectric–metal configuration. The omnidirectional resonance occurs when the reflection phase shift cancels the propagation shift. We numerically demonstrate such an omnidirectional resonance in an Ag–SiO2–Ag structure with realistic material parameters. Such omnidirectionally resonant structures are important for all-angle efficiency enhancement in light emitting diodes and photodetectors.