Omnidirectional and Multiple-Channeled Filters of Photonic Quantum-well Structures Containing Single-negative Materials
基于含单负材料光量子阱结构的全向多通道滤波器

The properties of the resonance modes in photonic quantum-well structures containing single-negative materials were analyzed.The photonic quantum-well structures consist of two Photonic Crystals (PCs) stacking with alternately single-negative-permittivity and single-negative permeability media.In the structure only one PC possesses the photonic gap with zero effective phase.The numerical results show that resonance transmission modes emerge inside the zero-effective-phase gap.By adjusting the thicknesses or the period number of the single-negative material layers in the photonic well region,the number,frequencies,and frequency interval of the resonance modes can be tuned.Such resonance modes are insensitive to incident angle,and the normalized frequency shift of the resonance modes is not more than 0.02 as the incident angle varies.The results open a promising way to fabricate omnidirectional and multiple-channeled filters.