Large angle-insensitive photonic band gap in a one-dimensional photonic hypercrystal in the visible range based on the phase-variation compensation theory

被引：1

作者：

She, Yuchun ^{[1
]}

Ruan, Jiayi ^{[1
]}

Cheng, Zhaoming ^{[1
]}

Zhao, Weidong ^{[1
]}

Liu, Yifei ^{[1
]}

Huang, Yiyi ^{[1
]}

Fang, Jingyang ^{[1
]}

Wu, Xiaozhen ^{[1
]}

Lu, Zihong ^{[1
]}

Chen, Yuying ^{[1
]}

Chen, Ying ^{[2
]}

Wu, Feng ^{[1
]}

机构：

[1] Guangdong Polytech Normal Univ, Sch Optoelect Engn, Guangzhou 510665, Peoples R China

[2] Huaqiao Univ, Coll Informat Sci & Engn, Xiamen 361021, Peoples R China

来源：

PHYSICS LETTERS A | 2024年 / 521卷

基金：

中国国家自然科学基金;

关键词：

Photonic crystals; Hyperbolic metamaterials; Photonic hypercrystals; Photonic band gaps; Tamm plasmon polaritons; TOTAL OMNIDIRECTIONAL REFLECTION; SPONTANEOUS EMISSION; DEFECT MODE; CRYSTAL; ABSORBER; HETEROSTRUCTURE; ABSORPTION; DESIGN;

D O I：

10.1016/j.physleta.2024.129752

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photonic band gaps (PBGs) in all-dielectric one-dimensional (1-D) photonic crystals strongly shift towards shorter wavelengths as incident angle increases. Such strong blueshift property of PBGs poses a great challenge to achieving large omnidirectional photonic band gaps (OPBGs), wide-angle narrow-band filtering, and wide-angle narrow-band absorbing. Based on the phase-variation compensation theory, we achieve a large angle-insensitive PBG in a 1-D photonic hypercrystal consisting of alternating dielectric and hyperbolic metamaterial layers in the visible range. Different from blueshift PBGs in all-dielectric 1-D photonic crystals, the angle-insensitive PBG demonstrates a superior angle-insensitive property. Empowered by the angle-insensitive property, the width of the OPBG reaches 200.36 nm. Besides, we realize wide-angle absorption based on an angle-insensitive Tamm plasmon polariton in a heterojunction composed of a metal layer, a dielectric spacer layer, and a 1-D photonic hypercrystal. This work would facilitate the development of large OPBGs, wide-angle narrow-band filtering, and wide-angle narrow-band absorbing.

引用

页数：16