A redshifted photonic bandgap and wide-angle polarization selection in an all-hyperbolic-metamaterial one-dimensional photonic crystal

Abstract

According to the Bragg scattering theory, photonic bandgaps (PBGs) in all-dielectric one-dimensional (1-D) photonic crystals (PhCs) are polarization-insensitive. Such polarization-insensitive property of PBGs poses a challenge in wide-angle high-performance polarization...

Wide-angle high-performance polarizers based on all-elliptical-metamaterial one-dimensional photonic crystals

“…Nevertheless, owing to the strong optical absorption in HMMs, both the transmittance and polarization extinction ratio (PER) are not high. The maximum transmittance is only 50.8% and the maximum PER is only 3.82 × 10 1 [62].…”

“…Under transverse electric (TE) polarization, the IFCs of HMMs are circles. Very recently, researchers selected two kinds of HMMs as the elements to constitute a class 1D photonic crystals (PCs) called all-HMM 1D PCs and then realized polarization-sensitive PBGs [62]. Under TM polarization, the PBGs in all-HMM 1D PCs shift towards longer wavelengths as the incident angle increases.…”

“…Under TE polarization, the PBGs in all-HMM 1D PCs shift towards shorter wavelengths as the incident angle increases. Therefore, wideangle polarizers can be designed [62]. Different from 2D and 3D nanostructures, the all-HMM 1D PCs are 1D nanostructures completely consisting of dielectric and metal thin films.…”

A high-performance biosensor design for waterborne bacteria detection based on one-dimensional photonic crystal

“…The increase in the incident angle results in a blue-shifted defect mode in the photonic band gap. On the other hand, the photonic band gap properties will be redshifted for TM polarization [36]. Thus, both conditions will aid in the detection of biomolecules.…”

“…Thus, both conditions will aid in the detection of biomolecules. Several studies have demonstrated that for greater incident angles, the sensitivity of biosensors is greater for TE polarization than for TM polarization [36][37][38]. Moreover, in 1D PhCs, TE polarized waves typically have a larger band gap than TM polarized waves [39,40].…”