Abstract

In conventional one-dimensional (1-D) photonic crystals (PCs) consisting of isotropic dielectrics, photonic bandgaps (PBGs) substantially shift toward shorter wavelengths as incident angle increases. This strong blueshift characteristic of PBGs significantly reduces the widths of near-infrared omnidirectional photonic bandgaps (OPBGs). Recently, researchers achieved a kind of special PBG called angle-insensitive PBGs in 1-D PCs containing all-dielectric elliptical metamaterials (EMMs). The emergence of angle-insensitive PBGs provides us a possibility to achieve ultra-large near-infrared OPBGs. Herein, we design two 1-D PCs containing all-dielectric EMMs with near-infrared angle-insensitive PBGs in different wavelength ranges. By cascading two 1-D PCs containing all-dielectric EMMs together, we achieve an ultra-large near-infrared OPBG with a width up to 1.004 µm (relative bandwidth of 63.9%). In addition, the width of the near-infrared OPBG demonstrates robustness against the layer thickness. Our work not only provides a feasible route to achieving ultra-large near-infrared OPBGs, but also facilitates the design of broadband omnidirectional mirrors.

© 2023 Optica Publishing Group

Polarization-sensitive photonic bandgaps in hybrid one-dimensional photonic crystals composed of all-dielectric elliptical metamaterials and isotropic dielectrics

Feng Wu, Tingting Liu, and Shuyuan Xiao
Appl. Opt. 62(3) 706-713 (2023)

Anomalous polarization-sensitive Fabry-Perot resonance in a one-dimensional photonic crystal containing an all-dielectric metamaterial defect

Feng Wu, Yuchun She, Zhaoming Cheng, Shi Hu, Guanghui Liu, and Shuyuan Xiao
Opt. Express 31(20) 32669-32683 (2023)

Photonic bandgap engineering in hybrid one-dimensional photonic crystals containing all-dielectric elliptical metamaterials

Feng Wu, Tingting Liu, Mingyuan Chen, and Shuyuan Xiao
Opt. Express 30(19) 33911-33925 (2022)

Terahertz angle-independent photonic bandgap in a one-dimensional photonic crystal containing InSb-based hyperbolic metamaterials

Feng Wu, Xi Yu, Abinash Panda, and Dejun Liu
Appl. Opt. 61(26) 7677-7684 (2022)

Omnidirectional photonic bandgap in one-dimensional photonic crystals containing hyperbolic metamaterials

Guang Lu, Xiachen Zhou, Yunpeng Zhao, Kaiyuan Zhang, Haiyang Zhou, Junyang Li, Chao Diao, Fen Liu, Ailing Wu, and Guiqiang Du
Opt. Express 29(20) 31915-31923 (2021)